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		<updated>2026-05-15T16:47:46Z</updated>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3085:_About_20_Pounds&amp;diff=410432</id>
		<title>3085: About 20 Pounds</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3085:_About_20_Pounds&amp;diff=410432"/>
				<updated>2026-04-16T03:12:45Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Removing irrelevant material about LLMs&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3085&lt;br /&gt;
| date      = May 5, 2025&lt;br /&gt;
| title     = About 20 Pounds&lt;br /&gt;
| image     = about_20_pounds_2x.png&lt;br /&gt;
| imagesize = 666x278px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = In addition to gravity, burritos interact through the strong, weak, and electromagnetic forces, which is believed to be a major contributor to their popularity.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|&lt;br /&gt;
*'''The article might be off-topic'''. We should focus on explaining the comic. If this is solved, remove this notice.&lt;br /&gt;
&lt;br /&gt;
*It should be divided into one or more sections.}}&lt;br /&gt;
The nature of {{w|dark matter}} is a significant {{w|List of unsolved problems in physics|unsolved problem in physics}}. We observe that galaxies spin faster than we expect based on the nearby observable matter.  Also, Galaxies seemed more clumped than are supposed to be only observing the normal matter, and this has led to physicists to believe there is non-visible mass that is clumping the galaxies together.  Dark matter is the name we give to this mass.  In the comic, [[Cueball]] and [[Ponytail]] consult an {{w|oracle}} to learn about dark matter.  &lt;br /&gt;
&lt;br /&gt;
The pentagram and candles suggest that the oracle is supernatural, summoned by an occult ritual; something which would present its own challenges to our understanding of the physical world.  There may be a pun here, in that they may be using 'dark magic' to communicate with something from the 'dark realm' on the assumption that it will know about dark matter. However, the word 'dark' in dark matter simply means that we do not know how to observe it; we have no evidence that dark matter is evil or satanic, though [[Randall]] may consider it [[:Category:Comics with cursed items|cursed]].&lt;br /&gt;
&lt;br /&gt;
In general, not all forces interact with all particles; indeed, {{w|gravity}} is believed to be the only force that interacts with everything we have observed. If a force doesn't interact with a particle, then the particle's existence cannot be directly observed via disturbances in that force. In particular, something that doesn't interact with electromagnetism cannot be 'seen', as photons will pass through it relatively unaffected, and likewise cannot be felt, because collision is a side effect of the {{w|Pauli exclusion principle}}.&lt;br /&gt;
&lt;br /&gt;
Even {{w|neutrino}}s, famous for {{what if|73|interacting with ''almost'' nothing}}, still interact via the {{w|weak force}}, allowing them to be detected with sufficiently large tanks of dense material. This is the main reason neutrinos cannot be dark matter: they interact far too much to be a viable option. A particle that interacts with ''nothing'' except gravity could only be detected by a {{w|LIGO|gravitational telescope}}.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
There is one dark matter candidate where the only interaction is overwhelmingly gravitational: black holes formed through collapse in the early Universe. These {{w|primordial black holes}} may not be detectable through any terrestrial experiment. However, even these objects can be found through their lensing effects if they are sufficiently large and common to account for the 'missing mass' we are looking for. Black holes of around 10 kg would also likely quickly evaporate through Hawking radiation, so are not a good dark matter candidate. Black holes of around asteroid mass would be extremely hard to detect and are a good dark matter candidate given current information.&lt;br /&gt;
&lt;br /&gt;
The particle's mass is described vaguely as ''about twenty pounds'', roughly 10 kilograms&amp;lt;!-- anywhere near 22 is feasibly &amp;quot;about 20&amp;quot;, so editors needn't try to add false precision to either side of this comparison --&amp;gt;, in line with how all-knowing oracles legendarily use ambiguous statements. This is a ludicrous amount of energy for particle physics. Any interaction would have to involve an equally ludicrous amount of other particle mass being in exactly the right place and time, a coincidence that might be so rare that one would not expect it to occur ever in the history of the universe. By comparison, the {{w|top quark|heaviest single particle}} we have observed, with a mass over a hundred times that of the proton, is around a tenth of a trillionth&amp;lt;!-- short scale &amp;quot;trillion&amp;quot;, right? ...as if that matters much here --&amp;gt; of a trillionth of a pound.&lt;br /&gt;
&lt;br /&gt;
Under more normal circumstances, we might still hope to observe the properties of the particle via creating it ourselves under controlled laboratory conditions. But again, there is no reasonable way to focus the energy required into a single particle interaction. The {{w|Large Hadron Collider|most powerful particle accelerator in the world}}, for example, peaks at about ten thousand times the mass of the proton (a solid billion times less energy than required) so it's out too. 20 pounds is about 2.6e36 eV which is way over any accelerator could achieve in the foreseeable future.&lt;br /&gt;
&lt;br /&gt;
Despite all this, twenty pounds is also much too ''small'' to be detectable via gravitational interaction; its {{w|Perturbation (astronomy)|influence on the orbits of planets}}, say, or the strength of its {{w|gravitational lensing}} effect, would be entirely negligible. In the scenario posed by the comic, then, there is no plausible way to observe more about dark matter while on Earth. Even if we did find some such particles naturally occurring, and had instruments that could measure such small gravitational forces, since it would interact only via gravity, the only properties it could have other than mass would be its decay rates from other particles. Which, again, would all be essentially nil, due to its mass&amp;lt;!-- except that because 10kg is roughly a billion Planck masses, the particle must decay by collapsing into a black hole and then exploding in a burst of 10²²K Hawking radiation--&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
The oracle proceeds to break expectations by suggesting that Ponytail and Cueball go out for {{w|burrito}}s. When faced with the apparent futility of continuing to try to investigate dark matter, the oracle predicts that going out for burritos is precisely as productive as any other approach. It justifies the suggestion by burritos being &amp;quot;pretty&amp;quot; good, again neither exactly quantifying the oracularity, and likely not even giving the optimal idea.&lt;br /&gt;
 &lt;br /&gt;
The title text observes that burritos interact through all four known {{w|fundamental interactions}}, making burritos popular. The electromagnetic force mediates the chemical reactions leading to a burrito's taste, the strong force keeps atomic nuclei together, and gravity gives burritos heft, all of which are helpful for enjoying them. It's hard to see how the weak force, which takes part in radioactive decay, helps with burrito enjoyment or popularity, but the weak force is responsible for the nuclear fusion that allowed the complex elements of the burrito to exist in the first place.&lt;br /&gt;
&lt;br /&gt;
The previous comic [[3084: Unstoppable Force and Immovable Object]] dealt with particles which do not even interact with gravity.&lt;br /&gt;
In [[2035: Dark Matter Candidates]] these 20 lb dark matter particles fit between magic 8 balls and space cows.  The squirrels that make up [[2186: Dark Matter]] near the earth must be pretty chunky. Talking to a floating sphere is becoming a returning subject in xkcd. See more about other instances of this on the page for the [[:Category:Time traveling Sphere|Time traveling Sphere]] series.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Cueball and Ponytail are standing in front of a pentacle with lit candles at the corners. A black sphere, the oracle, is floating above the middle of the pentacle.]&lt;br /&gt;
:Ponytail: Dear oracle,&lt;br /&gt;
:Ponytail: What is the nature of dark matter?&lt;br /&gt;
:Oracle: It's about 20 pounds.&lt;br /&gt;
&lt;br /&gt;
:[Close up of oracle]&lt;br /&gt;
:Off-panel: What?&lt;br /&gt;
:Oracle: Dark matter is a particle. It weighs about 20 pounds.&lt;br /&gt;
:Oracle: It only interacts through gravity.&lt;br /&gt;
&lt;br /&gt;
:[Same view as first panel]&lt;br /&gt;
:Cueball: Only gravity, huh?&lt;br /&gt;
:Cueball: So none of our experiments are really going to tell us any more about it, then.&lt;br /&gt;
:Oracle: Afraid not.&lt;br /&gt;
&lt;br /&gt;
:[Same view as first and third panels, except Cueball lifted his forearm.]&lt;br /&gt;
:Cueball: So what do we do?&lt;br /&gt;
:Oracle: You should go out for burritos.&lt;br /&gt;
:Ponytail: How will that help?&lt;br /&gt;
:Oracle: Well&lt;br /&gt;
:Oracle: Burritos are pretty good.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Cosmology]]&lt;br /&gt;
[[Category:Food]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3078:_Anchor_Bolts&amp;diff=408626</id>
		<title>3078: Anchor Bolts</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3078:_Anchor_Bolts&amp;diff=408626"/>
				<updated>2026-03-22T02:28:48Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Removing irrelevant material about other kinds of bolts&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3078&lt;br /&gt;
| date      = April 18, 2025&lt;br /&gt;
| title     = Anchor Bolts&lt;br /&gt;
| image     = anchor_screws_2x.png&lt;br /&gt;
| imagesize = 381x326px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The biggest expense was installing the mantle ducts to keep the carbonate-silicate cycle operating.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic displays a cross-section of a subduction zone, with an anchor bolt connecting the two tectonic plates. Sudden shifts in the positions of tectonic plates relative to each other is a major cause of earthquakes, especially the largest ones. {{w|anchor bolt|Anchor bolts}} are used to secure an item in place, for instance to attach a building to its foundation.  In earthquake prone areas, anchor bolts are often used to secure furniture so it won't slide or jump around during a tremor, potentially creating a hazard. The joke is that, instead of settling for an engineering solution that minimizes the &amp;lt;em&amp;gt;consequences&amp;lt;/em&amp;gt; of an earthquake, geophysicists have applied the solution to &amp;lt;em&amp;gt;prevent&amp;lt;/em&amp;gt; earthquakes from happening. The caption facetiously expresses frustration that the geophysicists have taken &amp;lt;em&amp;gt;this long&amp;lt;/em&amp;gt; to address the earthquake problem at its source. The simple absurdity  of this project is another part of the joke.&lt;br /&gt;
&lt;br /&gt;
{{w|Subduction}} is a geologic process in which two {{w|Plate tectonics|plates}} of planetary {{w|lithosphere}} converge, and one is dragged under the other.  The Earth's lithosphere is divided into tectonic plates. They slowly move across the surface at a few centimeters per year, although the rate is nonuniform across plates. Where they collide, the denser plate gets dragged under the less dense plate, in a process called subduction. {{w|Earthquake|Earthquakes}} are common at subduction zones, and subduction can also lead to volcanic activity. An &amp;quot;anti-subduction anchor bolt&amp;quot; would aim to stop the process of subduction and the movement of plate tectonics as a whole.&lt;br /&gt;
&lt;br /&gt;
A round head bolt is screwed in through both the oceanic lithosphere and the continental crust from the bottom up, with a plain washer on either side, and a wing nut tightened at the surface. Washers are present to prevent the bolt and the wing nut from sinking into the crust, by distributing the forces over larger areas. There are several concerns not addressed in the comic with such a design. The implication that the bolt is being screwed in from the mantle side would imply that a very large bolt head was operated from inside the mantle. As of the time of posting of the comic, {{w|Kola Superdeep Borehole|humans have not drilled a hole through a continental crust}}, still less deployed large vehicles in the mantle. In addition, the presence of wing nuts, fasteners that are designed to be able to be screwed in by hand, implies work done by a larger being that has appendages able to use the wing nut. The bolt itself would be a technological challenge, as well. It would need to be made to withstand the temperature of Earth's mantle, around 1000&amp;amp;deg;C near the surface.  At these temperatures, most commercial stainless steel used to manufacture bolts would experience noticeable strength losses. The bolt would need be around 50 km long. Moreover, as subduction zones move parallel to each other, the construction would have to withstand high shear forces, something that a bolt is rather unsuited to compared to other tools, such as rivets. On top of that, ways to alleviate stress must be sought out as if the bolt fails, it could produce a highly amplified earthquake. On top of all this, having secured the bolt, the mantle team would have sealed off their most obvious route of exit back to the surface.&lt;br /&gt;
&lt;br /&gt;
In the short term, earthquakes and volcanic eruptions are typically bad for those living nearby, and thus ways to prevent them happening might reduce economic risks in those areas. However, volcanic eruptions deposit nutrients in the surrounding area, enriching soils.  Volcanos also release gases. The vents mentioned in the title text might replenish the nutrients and gases, replacing the benefits of eruptions. Earthquakes sometimes trigger {{w|tsunami|tsunamis}}, which create or modify beaches, and redistribute nutrients from bays and estuaries across coastal plains. So, while the immediate effects of eruptions and earthquakes can be disruptive, they also enrich the environment. Areas at risk from these &amp;quot;disasters&amp;quot; are also attractive and enriched as a result of these same events.&lt;br /&gt;
&lt;br /&gt;
When plates collide but do not subduct, they often uplift, thickening or raising the crust. The {{w|Himalayas|Himalaya}} mountains, are an example. Tectonic plates spread apart as new lithosphere is formed at ridges, most of which occur under oceans. If spreading continued, but subduction was prevented by the system of anchors pictured in this cartoon, there would likely be new areas of uplift. If positioned appropriately, the mantle ducts, mentioned in the title text, might slow or stop the spreading, reducing uplift.&lt;br /&gt;
&lt;br /&gt;
The title text references the {{w|Carbonate–silicate cycle|carbonate-silicate geochemical cycle}}. Briefly, subduction and subsequent heating of the global crust restores carbon dioxide and silicate rocks to the planetary surface, countering the effects of carbonate deposition and silicate rock weathering. Anchor bolts sufficient to stop plate tectonics would also stop the carbonate-silicate cycle, leading to unexpected, and likely unwelcome, changes in the surface geosphere and biosphere. (Arguably, if the carbonate cycle alone could be paused, it might be a means of reducing the amount of carbon dioxide in the biosphere.) To restore the cycle by an unknown mechanism, &amp;quot;mantle ducts&amp;quot; have been installed as part of the planet-wide plate anchoring system. It is stated that the mantle duct installation was the most expensive part of the project, implying greater intellectual and technical challenges than the already-massive ones associated with anchor-bolt design and deployment. It is unclear how these mantle ducts would operate in a way that does not replicate many of the issues that the anchor bolts were intended to solve.&lt;br /&gt;
&lt;br /&gt;
This project would presumably render [[Beret Guy]]'s [[1388: Subduction License|subduction license]] worthless.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Panel shows Randall's usual illustration of a subduction zone: a tectonic plate subducting from the left side of the panel with water above it, and a mountain range forming on the right side of the panel on the other tectonic plate. Beneath each tectonic plate is the asthenosphere. The main difference between this image and others like it is that there is a bolt shown attaching the plates together in the subduction zone. The head of the bolt is shown in the asthenosphere below the subducting plate. There are two washers displayed, one between the bolt head and the subducting plate and one above the other above the upper plate on the side of a smaller mountain. A wing nut is positioned above this washer, with part of the bolt sticking out above the nut, higher than the tallest mountains in the panel]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Good news: Geophysicists are '''''finally''''' installing Earth's required anti-subduction anchor bolts.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
In the [https://www.explainxkcd.com/wiki/images/archive/0/00/20250419063115%21anchor_screws_2x.png original version of the comic], the caption said &amp;quot;anti-subduction anchor '''screws'''&amp;quot; instead of &amp;quot;anti-subduction anchor '''bolts'''&amp;quot;. The title of the comic was also changed, from &amp;quot;Anchor Screws&amp;quot; to &amp;quot;Anchor Bolts&amp;quot;. The original comic image and title can be seen on an [https://web.archive.org/web/20250419024242/https://xkcd.com/3078/ archived version] of the [https://xkcd.com xkcd.com] site. The fastener illustrated is indeed a {{w|Bolt (fastener)|bolt}} (with a {{w|Wingnut (hardware)|wing nut}}), not a screw. A screw has a pointed end and is drilled into a hole that is smaller than the diameter of the screw; the pressure caused by its {{w|screw thread|thread}} and screw head binds two objects together. A screw does not need a nut to go with it.&lt;br /&gt;
&lt;br /&gt;
A bolt has a flat end, and it goes into a hole that is larger than the diameter of the bolt; it needs a nut which, when fixed onto the bolt and tightened, together with the head creates the pressure that binds the two objects together. Because a nut is used to create pressure, &amp;quot;bolt&amp;quot; is a more correct term than &amp;quot;screw&amp;quot;, although it is very common to talk of 'screws' for [[1474: Screws|screw-headed]] bolts which attach panels (with non-threaded holes) against a substrate which incorporates a 'nut-like' threaded hole within it (or a nut encapsulated and held non-rotating in the backing plate's recess), even though they are also flat-faced at the thread-end and not self-tapping.&lt;br /&gt;
&lt;br /&gt;
Or, for a differently worded definition, {{w|Screw#Differentiation between bolt and screw|see here}}.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Subduction]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Comics edited after their publication]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3073:_Tariffs&amp;diff=407940</id>
		<title>3073: Tariffs</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3073:_Tariffs&amp;diff=407940"/>
				<updated>2026-03-10T23:51:10Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ &amp;quot;Parody&amp;quot; isn't the right word here&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3073&lt;br /&gt;
| date      = April 7, 2025&lt;br /&gt;
| title     = Tariffs&lt;br /&gt;
| image     = tariffs_2x.png&lt;br /&gt;
| imagesize = 681x809px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = [later] I don't get why our pizza slices have such terrible reviews; the geotextile-infused sauce gives the toppings incredible slope stability!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic is a critique of the tariffs that US president {{w|Donald Trump}} {{w|tariffs in the second Trump administration|imposed in April 2025}}, which were announced shortly before the comic's release. [[Cueball]] describes the tariffs to [[Ponytail]].  Cueball uses a pizza analogy to describe why the plan has garnered widespread disapproval for several seemingly illogical decisions. &lt;br /&gt;
&lt;br /&gt;
In early 2021, Ponytail, much like her stunt in [[2396: Wonder Woman 1984]], blocked news sites to avoid {{w|Spoiler (media)|spoilers}} about ''Avatar 2'' (officially titled ''{{w|Avatar: The Way of Water}}''). ''Avatar 2'' was released on December 16, 2022, but she did not re-enable notifications until April 2025.  This means that she has missed all news since 2021, including the re-election of Trump in 2024. She is surprised that Donald Trump is still the president in early 2025. On one hand, a U.S. president serving nonconsecutive terms has only happened once before; {{w|Grover Cleveland}} served from 1885 to 1889 and again from 1893 to 1897. On the other hand, only {{w|Franklin D. Roosevelt}} ever had more than two four-year terms, and that was before the {{w|Twenty-second Amendment to the United States Constitution|22&amp;lt;sup&amp;gt;nd&amp;lt;/sup&amp;gt; Amendment}} made it unconstitutional for a president to serve more than two complete terms ([[2875: 2024|without getting false teeth, that is]]).&lt;br /&gt;
&lt;br /&gt;
Ponytail has further missed Trump's wide-ranging tariffs, and the attending news coverage that has served to introduce many people to what tariffs are and how they work. Cueball attempts to explain by comparing the U.S. with the Geotechnical Survey company that Ponytail works for, as they are both producers of goods and services, and comparing the countries the U.S. imports from to a pizza place, since the U.S. primarily imports lower value consumer goods and materials used to make the goods that the U.S. then exports, similar to how pizzas feed the workers in Ponytail's company.&lt;br /&gt;
&lt;br /&gt;
A trade deficit occurs when party A buys more from party B than they sell to party B. Donald Trump, the president of the United States at the time the comic released, claimed that if the U.S. has a trade deficit with another country, then the U.S. is getting ripped off and the other country must be punished. (As Donald Trump put it, [https://www.bbc.com/news/articles/cgkgg1krg63o &amp;quot;they ripped us off left and right. But now it's our turn to do the ripping.&amp;quot;]) In the comic, Cueball mockingly echoes Trump's belief to better explain his policies. As Ponytail explains, there is nothing wrong with having a trade deficit if you think you are getting your money's worth for what you are buying — specifically, looking purely at a &amp;quot;trade deficit&amp;quot; on paper does not tell you if the crediting partner is purchasing ''services'' from or offering other benefits to the debtor partner. &lt;br /&gt;
&lt;br /&gt;
Many countries trade; a trade deficit with one country may be offset by a trade surplus with other countries.  As long as countries maintain overall balance of trade, a trade deficit with one country is of little significance.  The U.S. can benefit from a trade deficit in some cases: the flow of foreign capital (like factory machinery) into the country can allow for more development, and some kinds of production are dangerous or polluting relative to the value of the goods produced. In addition, up to today, the U.S. treasury commands the world's most common reserve currency, which is also the currency used for most world trade, making outflow of foreign currency not really a problem.{{Actual citation needed}}&lt;br /&gt;
&lt;br /&gt;
A tariff is a tax on imports from another country. Most politicians try to balance tariffs carefully, for instance to keep domestic products competitive with imported goods. In contrast, Donald Trump introduced tariffs aggressively with the aim to &amp;quot;punish&amp;quot; countries with which the United States had a trade deficit. He claims that tariffs on goods manufactured abroad will encourage domestic manufacturing in order to avoid these tariffs, which will then provide more middle-class jobs. Many worry excessive tariffs will artificially inflate costs of products from other countries, leaving consumers with even higher prices (especially prices of goods which the United States cannot wholly produce domestically). Additionally, if other countries retaliate with tariffs (typically more well chosen ones, specifically targeting products that the U.S. wants to sell more than the other country needs to buy them) it could result in a &amp;quot;{{w|trade war}}&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
In the comic, Cueball proposes that Ponytail impose a tax or &amp;quot;tariff&amp;quot; on the pizza store until they start buying from Ponytail's company.  ({{w|Venmo}} is a payment platform; it's not like [[2716: Game Night Ordering|Yahoo Cash]] was an option anyway) Notably, the tariff is applied on the people who deliver the products to Ponytail's company, just like in real life. Ponytail notes that such a tariff might discourage pizza store from selling to her, which Cueball considers (in his position as devil's advocate for the whole concept) a victory. Nations have very little control of where the products they export go. Instead, it is left up to the companies (the delivery companies, in this case) to decide where to produce (or procure) the goods. What tariff proponents often omit, is that companies will simply pass on the costs associated with tariffs to the purchaser, making the pizza more expensive for the consumer, with no benefit to the supplier. In practical terms, the pizza company may stop taking orders from this company, having other customers that are easier to deliver to. Even if there's a saturated pizza industry, with several pizza outlets all vying for the local business, it may be easier to compete for the slightly smaller 'rest of the town' market, perhaps even to offer deliveries to places previously outside their area, than to pay the survey company.&lt;br /&gt;
&lt;br /&gt;
Ponytail notes that the pizza company has little use for her company's land surveys, unless they are constructing their own stores. Ponytail suggests surveying pizzas using their equipment, which would serve little purpose.&lt;br /&gt;
 &lt;br /&gt;
Real world countries like China or Canada, as of 2025, procure a substantial amount of goods from the U.S. The U.S. used to be a dominant producer of consumer goods up until the 1970s, after which companies started offshoring production that utilized low-skilled labor to third-world countries. In contrast, Ponytail's company likely has never been a producer of food. {{w|LIDAR}} is a technique using lasers to measure distances. Ponytail's company is using the technology to do surveying. In the final panel, Cueball suggests that they use their LIDAR components to make their own pizzas, which would be inedible and potentially toxic. Cueball may be referencing the annoyance Italians have at unconventional pizza toppings.&lt;br /&gt;
&lt;br /&gt;
The title text switches to a more frequent type of humour on xkcd: misapplication of science. Slope stability is the ability of an inclined slope to withstand movement; toppings often slide off poorly-made pizzas when it is being eaten, leading to dissatisfaction on the part of those eating said pizza. {{w|Geotextile}}s are permeable fabrics used for support and various other functions. The narrator - presumably Ponytail, or someone else working at the same company - claims that geotextiles prevent toppings from sliding off the pizza, and seems to think this is deserving of a flattering review. However, very few geotextiles are edible, which has presumably resulted in a disgusting - and possibly toxic - pizza. This may be a reference [https://www.bbc.co.uk/news/articles/cd11gzejgz4o Google's AI suggesting using non-toxic glue to ensure cheese doesn't slide off].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Ponytail walks over to Cueball while looking at a phone in her hand. Cueball, sitting in an office chair, is leaning back on the chair and turns his head towards her. He is at his desk with his laptop open in front of him.]&lt;br /&gt;
:Ponytail: You know how I blocked all news sites at the start of 2021 to avoid spoilers for Avatar 2, and then forgot to start checking them again?&lt;br /&gt;
:Cueball: Yeah, we've been meaning to talk to you about that...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail, still holding the phone, stops in front of Cueball and looks at him. He has turned his chair around to face her, having his back to the desk with the laptop.]&lt;br /&gt;
:Ponytail: Well, I just checked the news for the first time, and why is the economy tanking?&lt;br /&gt;
:Cueball: Uh, the president is mad at other countries and imposed lots of tariffs.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on Ponytail's head. Cueball's reply comes from a starburst on the right edge of the panel.]&lt;br /&gt;
:Ponytail: Wait, who's the president now?&lt;br /&gt;
:Cueball (off-panel): Donald Trump.&lt;br /&gt;
:Ponytail: ...Still??&lt;br /&gt;
:Cueball (off-panel): No, again.&lt;br /&gt;
&lt;br /&gt;
:[Back to the previous setting, Ponytail is no longer holding the phone.]&lt;br /&gt;
:Ponytail: OK, fine, what's a tariff? Why is he doing this?&lt;br /&gt;
:Cueball: You know that pizzeria your company orders from? They don't buy anything from '''''you''''', right?&lt;br /&gt;
:Ponytail: Why would they? We do geotechnical landscape surveys.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on Cueball who holds both his arms out wide. Ponytail's reply comes from a starburst on the left edge of the panel.]&lt;br /&gt;
:Cueball: Right, so they're ripping you off! '''''You're''''' paying '''''them''''' tons of money, and what are '''''you''''' getting for it?&lt;br /&gt;
:Ponytail (off-panel): I mean... pizza?&lt;br /&gt;
:Cueball: See? They're not helping '''''your''''' business at all!&lt;br /&gt;
:Cueball: What a ripoff!&lt;br /&gt;
&lt;br /&gt;
:[Back to the previous setting, Ponytail has her hand under her chin.]&lt;br /&gt;
:Ponytail: What would they even buy from us? I guess we could survey a pizza...&lt;br /&gt;
:Cueball: Yes, perfect! You refuse to let the delivery driver past your security desk unless they Venmo you for an equivalent value of LIDAR scans.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on Ponytail's head. Cueball's reply comes from a starburst on the right edge of the panel.]&lt;br /&gt;
:Ponytail: Wouldn't they just stop taking our orders?&lt;br /&gt;
:Cueball (off-panel): Perfect, balance restored!&lt;br /&gt;
&lt;br /&gt;
:[Back to showing both of them in the same position but the desk is not shown.]&lt;br /&gt;
:Ponytail: OK, but I still want pizza.&lt;br /&gt;
:Cueball: Can you just make one? You have all that gear.&lt;br /&gt;
:Ponytail: I don't think pizza made with LIDAR diodes would be very good.&lt;br /&gt;
:Cueball: Ugh, why is everyone so picky about toppings?&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Donald Trump]]&lt;br /&gt;
[[Category:Politics]]&lt;br /&gt;
[[Category:Food]]&lt;br /&gt;
[[Category:Geology]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3066:_Cosmic_Distance_Calibration&amp;diff=406579</id>
		<title>3066: Cosmic Distance Calibration</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3066:_Cosmic_Distance_Calibration&amp;diff=406579"/>
				<updated>2026-02-19T02:42:57Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Tightening things up&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3066&lt;br /&gt;
| date      = March 21, 2025&lt;br /&gt;
| title     = Cosmic Distance Calibration&lt;br /&gt;
| image     = cosmic_distance_calibration_2x.png&lt;br /&gt;
| imagesize = 317x409px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = This is the biggest breakthrough since astronomers noticed that the little crosshairs around red giant stars starting to burn helium are all the same size.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This is one of the [[:Category:News|News]] comics, delivering cosmology news.&lt;br /&gt;
&lt;br /&gt;
Astronomical photographs sometimes have various labels added for the objects in them, such as names, distances, stellar classifications, etc. The comic interprets the labels next to stars in the image as actual objects in space. If these labels were astrophysical objects in reality, they would be of monstrous size, especially for particularly distant stars. They would also create a sudden lack of need for themselves, as the stars would be gravitationally attracted to their respective labels and promptly destroyed.&lt;br /&gt;
&lt;br /&gt;
The label in this image appears to be pointing to a star in the spiral galaxy M106 (also known as &amp;quot;{{w|Messier 106}}&amp;quot; and &amp;quot;NGC 4258&amp;quot;), located between 22 and 25 million light-years (MLY) away from Earth and compatible with the 23.6163 MLY shown in the comic.&lt;br /&gt;
&lt;br /&gt;
The title text extends the main joke by suggesting that the &amp;quot;crosshairs&amp;quot; around red giant stars, put into an image by an astronomer to indicate those stars starting to burn helium, are actual objects in space which are of a standardized size when seen from Earth. One such set of crosshairs can be seen in the comic. Stars at this stage of stellar evolution are of particular astronomical interest because they all have the {{w|Standard candles|same absolute brightness}}, allowing their distance to be determined because the observed luminosity is a simple inverse-distance-squared falloff from a known original value. This is referred to as the &amp;quot;{{w|tip of the red-giant branch}}&amp;quot; (TRGB) distance calculation method, referring to the red-giant region of the {{w|Hertzsprung–Russell diagram}}. This allows estimation of distances not only to the stars themselves, but also to distant galaxies that contain them. In the weeks before this comic appeared, [https://science.nasa.gov/missions/hubble/nasas-webb-hubble-telescopes-affirm-universes-expansion-rate-puzzle-persists/ findings based on measurements of star and galaxy distances] reinforced a longstanding quandary in cosmology known as the {{w|Hubble tension}}.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Ponytail is standing behind a lectern, pointing towards a large screen behind her with a stick. On the screen is a scattering of small, hard-to-make-out galaxies and stars with illegible writing next to them. On the screen behind Ponytail, one of these stars has been circled, and there are graphics indicating it is being repeatedly magnified along with the text next to it. At the first level of magnification the text next to this star remains somewhat illegible, but at the second level it is readable, albeit partially cut off and blurry.]&lt;br /&gt;
&lt;br /&gt;
:[First level of magnification (... represents cut off text)]:&lt;br /&gt;
:M106 0-06832&lt;br /&gt;
:Distance:&lt;br /&gt;
:23.6163 MLY (27...&lt;br /&gt;
&lt;br /&gt;
:[Second level of magnification (... represents cut off text)]:&lt;br /&gt;
:M106 0-06...&lt;br /&gt;
:Distance:&lt;br /&gt;
:23.6163 MLY...&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel]:&lt;br /&gt;
:Cosmology News: New telescopes are finally powerful enough to read the little labels next to stars showing how far away they are.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:News]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Cosmology]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Telescopes]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3061:_Water_Balloons&amp;diff=406270</id>
		<title>3061: Water Balloons</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3061:_Water_Balloons&amp;diff=406270"/>
				<updated>2026-02-15T04:21:35Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Tightening things up&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3061&lt;br /&gt;
| date      = March 10, 2025&lt;br /&gt;
| title     = Water Balloons&lt;br /&gt;
| image     = water_balloons_2x.png&lt;br /&gt;
| imagesize = 578x713px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Update: The physics department has recruited an astronomer who studies meteor fireballs.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic graphs the mass vs. the lifetime of three objects: {{w|meson}}s, {{w|planet}}s and flying {{w|water balloon}}s. Mesons, which are subatomic particles, have a very low mass and a very short lifetime, as they naturally decay into fundamental particles. Planets have a very large mass and a lifetime on the order of billions of years. &amp;quot;Flying water balloons&amp;quot;--that is, water balloons between the time they are launched and the time they reach their target--are right in the middle, with a mass of approximately 1 kilogram and a flight time of approximately 1 second. (If the area outlined on the chart is to be taken literally then those numbers are ''very'' approximate, with the mass of a flying water balloon ranging from grams to hundreds of kilograms and a flight time ranging from fractions of a second to a couple of hours.)&lt;br /&gt;
&lt;br /&gt;
As the graph indicates, a flying water balloon is about 15 orders of magnitude longer-lived than a meson and the same amount shorter-lived than a planet, and about 25 orders of magnitude heavier than a meson and the same amount lighter than a planet. In the comic, this is taken to mean that scientists who study mesons and scientists who study planets can be assumed to be equally matched when interacting with flying water balloons, such as during &amp;quot;the annual interdepartmental water balloon fight&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
As it happens, this is a reasonable assumption, but not because of anything to do with these scientists' areas of study. Rather, it is because neither area of study has anything to do with water balloons.&lt;br /&gt;
&lt;br /&gt;
The title text introduces a new type of scientist, one with expertise in an area, {{w|Meteor#Fireball|meteor fireballs}}, where the objects being studied have approximately the same mass and lifespan as water balloons. In order to form a fireball, a meteor (i.e. a &amp;quot;space rock&amp;quot; passing through the Earth's atmosphere on its way from being a {{w|meteoroid}} to, potentially, a {{w|meteorite}}) needs to be at least about 100 g, and the time it spends being a fireball is typically between a few seconds and a minute or two. These numbers are within a couple of orders of magnitude compared to those for flying water balloons, so by the logic of this cartoon, these scientists would have a clear advantage in the water balloon fight. However, despite the similarity in mass and lifetime, meteor fireballs and flying water balloons are different enough that these &amp;quot;ringers&amp;quot; would not likely have any advantage at all. The physics department would be better off recruiting someone who is skilled at {{w|softball}}.&lt;br /&gt;
&lt;br /&gt;
Extrapolation and interpolation, often absurd, are [[:Category:Extrapolation|recurrent topics]] on xkcd. For example, in [[3050: Atom]], an atom was blown up to the size of a water balloon, with the responsible scientists complaining about it being wet.&amp;lt;!--it was explainers on explainxkcd who pointed out that enlarging a small handleable object the same way as that atom, would result in a planetary object.--&amp;gt; One of the planets (Earth) was depicted on another 2D interpolation chart but with different units in [[2893: Sphere Tastiness]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Graph with Y axis labeled &amp;quot;Mass&amp;quot; running from 10&amp;lt;sup&amp;gt;-30&amp;lt;/sup&amp;gt; kg to 10&amp;lt;sup&amp;gt;30&amp;lt;/sup&amp;gt; kg on a logarithmic scale and X axis labeled &amp;quot;Lifetime&amp;quot;, also on a logarithmic scale, running from 10&amp;lt;sup&amp;gt;-20&amp;lt;/sup&amp;gt;  to 10&amp;lt;sup&amp;gt;20&amp;lt;/sup&amp;gt; seconds.]&lt;br /&gt;
&lt;br /&gt;
:[There are three elliptical blobs on the graph: one on the lower left corner labeled &amp;quot;Mesons&amp;quot;, another on the upper right corner labeled &amp;quot;Planets&amp;quot;, and another in the middle (1kg mass, 1s lifespan) labeled &amp;quot;Flying water balloons&amp;quot;. There are two bidirectional arrows pointing from the center blob to the two other blobs.]&lt;br /&gt;
&lt;br /&gt;
:[To the left of the chart are Cueball and Ponytail. Ponytail is throwing a water balloon, and Cueball is dodging from one. To the right are Megan and Hairy. Megan is preparing to throw a water balloon, and Hairy is slipping in a puddle of water, with a water balloon having landed near his foot with a &amp;quot;Sploosh!&amp;quot;.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:In the annual interdepartmental water balloon fight, meson particle physicists and planetary scientists are usually evenly matched, since they're both equally far outside their areas of expertise. &lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Line graphs]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Extrapolation]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Games]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3035:_Trimix&amp;diff=402896</id>
		<title>3035: Trimix</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3035:_Trimix&amp;diff=402896"/>
				<updated>2026-01-04T04:22:23Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Overall cleanup; further edits welcome&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3035&lt;br /&gt;
| date      = January 8, 2025&lt;br /&gt;
| title     = Trimix&lt;br /&gt;
| image     = trimix_2x.png&lt;br /&gt;
| imagesize = 436x259px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You don't want the nitrogen percentage to be too high or you run the risk of eutrophication.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{w|Trimix (breathing gas)|Trimix}} is a gas used in {{w|scuba set|scuba}} tanks that consists of {{w|oxygen}}, {{w|helium}}, and {{w|nitrogen}}. Trimix comes in some standard ratios between the component gases, depending on the required diving depth, for example 21/35/44 (percentage oxygen/helium/nitrogen), 18/45/37, and 15/55/30 for increasing depth. The decreasing amount of oxygen is necessary in order to prevent {{w|oxygen toxicity}}, and the decreasing amount of nitrogen is necessary to minimize nitrogen's narcotic effects at greater depths. Helium has proven to be a safe choice to fill the gap.&lt;br /&gt;
&lt;br /&gt;
Helium gas is famously lighter than air. At {{w|standard temperature and pressure}}, air weighs approximately 1.28 g/L, while helium weighs only approximately 0.18 g/L. This means that a helium balloon has a lifting force of about one gram per litre, and in the comic this is humourously depicted as being enough to lift the diver off the ground.&lt;br /&gt;
&lt;br /&gt;
Scuba tanks vary in size, but a large back-mounted tank, of the type shown, would likely be no larger than 22 L. This would lead to a lifting force of approximately 24 grams. In real life this would not even budge the tank itself, which would weigh over 10 kg, let alone the diver. The scenario is even less plausible because scuba tanks are highly pressurized, making the helium much heavier than unpressurized air.&lt;br /&gt;
&lt;br /&gt;
The title text asserts that a trimix diver whose gas mix contains an excess of nitrogen runs &amp;quot;the risk of eutrophication&amp;quot;. The term {{w|Eutrophication|eutrophication}} describes the process by which nutrients (&amp;quot;fertilizers&amp;quot;) accumulate in an environment, typically a body of water, leading to negative consequences. This would not happen in the human body, however, since it has mechanisms to prevent this accumulation. Furthermore, eutrophication is caused by {{w|Nitrogen_fixation|&amp;quot;fixed&amp;quot;}} nitrogen, not the diatomic elemental nitrogen used in trimix.&lt;br /&gt;
&lt;br /&gt;
Another interpretation of the title text is that if a diver dies of nitrogen exposure, then their dead body might cause eutrophication in the body of water in which they were swimming.&lt;br /&gt;
&lt;br /&gt;
[[Randall]] addressed the question &amp;quot;how much helium is needed to lift a human body&amp;quot; in a ''[[what if? (blog)|what if?]]'' article, ''{{what if|62|Falling With Helium}}''. Helium has also featured in comics [[585: Outreach]], [[2766: Helium Reserve]] and [[2972: Helium Synthesis]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[In a single frame five images of Cueball are shown as a kind of a cartoon event sequence, from left to right, with each image a later time in the process. The first image shows Cueball standing by the shore of a body of water. He is wearing scuba gear, goggles, a regulator, a scuba tank with a small H logo on it on his back, and fins, which almost touch the water.]&lt;br /&gt;
&lt;br /&gt;
:[In the next four images he has the same equipment on, but with changes. He is presumably still at the edge of the water, but the water is not drawn in the next four images.]&lt;br /&gt;
&lt;br /&gt;
:[In the second image, Cueball's scuba tank is beginning to float upwards, so the end that is not tethered to Cueball moves out and up, as shown with three small lines beneath the tank.]&lt;br /&gt;
&lt;br /&gt;
:[In the third image the scuba tank is now floating above Cueball's head and the strings pull his arms a bit upwards. Cueball has turned his head looking up at the tank floating above and behind his head. Again three small lines beneath the tank indicates it is moving upwards.]&lt;br /&gt;
&lt;br /&gt;
:[In the fourth image Cueball is now being lifted up, so his feet are now off the ground and he is tilting forward. The tank is now pointing its bottom almost straight up and Cueball is looking down with his arms out to each side as the tank pulls him up. Two lines on either side of the tank indicate that it now wobbles above him as it lifts him up.]&lt;br /&gt;
&lt;br /&gt;
:[In the fifth and last image the scuba tank is now pulling a dangling Cueball with his legs splayed high above the ground, above his head's height in the first image. The tank is now turned so it points its bottom to the left with lines on either side indicating wobbling motion. Cueball is floating in a roughly horizontal position as the tank's straps pull him upwards. At this point he yells:]&lt;br /&gt;
:Cueball: ''Help!''&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Trimix scuba divers need to be careful not to let the helium percentage get too high.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Chemistry]]&lt;br /&gt;
[[Category:Sport]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3022:_Making_Tea&amp;diff=400956</id>
		<title>3022: Making Tea</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3022:_Making_Tea&amp;diff=400956"/>
				<updated>2025-12-07T03:01:45Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Other tea controversies */ No need for both synonyms&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3022&lt;br /&gt;
| date      = December 9, 2024&lt;br /&gt;
| title     = Making Tea&lt;br /&gt;
| image     = making_tea_2x.png&lt;br /&gt;
| imagesize = 690x291px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = No, of course we don't microwave the mug WITH the teabag in it. We microwave the teabag separately.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{w|Tea}} is exceptionally popular in the United Kingdom (although [https://www.bbc.co.uk/news/articles/c4gpll9l535o decreasingly so], and not as serious a business as in {{w|Japanese tea ceremony|Japan}} and {{w|Chinese tea culture|China}}). Electric kettles are a standard appliance in British homes (used to boil water for tea, coffee, soup powders, instant mash, etc) and teapots and other related crockery can be found in many cupboards, or even on a shelf in full display, whether or not regularly used. British people are perceived as taking tea seriously, having very specific and strongly held opinions on the proper way to make tea. In contrast, tea (especially hot tea) is less commonplace in the United States of America (Randall's native country), and few people are particularly serious about it. Coffee is a much more common hot beverage, and both homes and offices are far more likely to have automatic coffee makers than electric kettles. While some US households have kettles that can be put on a stove top, many do not have any specific device to boil water. As a result, when Americans need a cup of hot water — for tea or otherwise — the options are usually to use a pan on the stove, or to simply microwave a mug of water (the latter probably being more common in modern times). &lt;br /&gt;
&lt;br /&gt;
British people are stereotyped as taking genuine offense to microwaved water, believing it to be an objectively incorrect way to make tea. Randall mocks this stereotype through exaggeration, saying British people would be significantly less offended by someone stealing {{w|Crown Jewels of the United Kingdom|the Crown Jewels}} and using those for tea-making than they would be by tea made with a cup of microwaved water.&lt;br /&gt;
&lt;br /&gt;
===Methods mentioned===&lt;br /&gt;
;Making it in a kettle&lt;br /&gt;
:Perhaps an intentional misnomer. Water may be ''boiled'' in a kettle, but the tea itself is made in a separate {{w|teapot}}, with loose or bagged tea-leaves, ready for pouring into any number of {{w|teacup}}s, {{w|mug}}s or {{w|vacuum flask|thermos flask}} as required. Making tea actually ''in'' the kettle, by placing the tea in with the water and then boiling it, would be considered ''very'' bad form  and render the kettle less useful for its other purposes (and likely void your warranty). Boiling the water in a kettle is standard practice (occasionally a {{w|Water heating|potable water geyser}} or similar may be available), leaving the tea-making process to occur in the teapot (as above) or the drinking vessel (as below).&lt;br /&gt;
&lt;br /&gt;
;Boiling water in a pot, steeping in a mug&lt;br /&gt;
:Identical to the basic boiling process above, except using a pot (commonly called a 'saucepan' in the UK) on the stove, rather than a kettle. This is slightly less convenient than using a kettle (since pans generally lack a dedicated spout for pouring and a whistle to signal when the water boils), but is otherwise functionally identical. Nonetheless, the comic notes that Brits would take mild offense, considering it to be inferior to using a kettle.&lt;br /&gt;
:To confuse matters, British people would normally take '{{wiktionary|pot#Noun|pot}}' (in the specific context of tea-making) to be [https://idioms.thefreedictionary.com/one+for+the+pot short for 'teapot']. However, a ceramic teapot should ''never'' be directly heated in the manner of a pan or a kettle. It should be filled with freshly boiled water, ''ideally'' after an initial small splash of hot water is swirled around it to warm the teapot to prevent cracking and then the requisite number of teabags (or quantity of tealeaves) dropped in.&lt;br /&gt;
&lt;br /&gt;
;Making it in a chalice and ampulla stolen from the Crown Jewels&lt;br /&gt;
:A {{w|chalice}} is an ornate type of cup; an {{w|ampulla}} is a type of flask or bottle. Both are typically now terms used in relation to objects used in ritual. Randall is likely drawing a parallel here with the ritualism and particularity with which some people surround the making of tea and its associated artefacts.&lt;br /&gt;
:The {{w|Crown_Jewels_of_the_United_Kingdom|Crown Jewels}} are a set of items belonging to the British monarchy, including ceremonial items and clothing using in royal coronations. These items have both major cultural significance, due to their historical connection with the monarchy, and major objective value, as many of them are heavily jeweled and/or made of precious metals. To steal items from this collection for the purpose of tea-making would obviously be both highly criminal and highly disrespectful. The ampulla referenced is used to anoint the monarch with oil during the coronation ceremony and the chalice may refer to a {{w|Eucharist|Communion vessel}}, giving them religious significance as well.&lt;br /&gt;
:More importantly for many, though, this would be incorrect tea-ware. The gold or silver chalices and gold ampulla are doubtful as being of suitable materials for British tea-making (as opposed to using cast iron, stainless steel, silver-plate, robust ceramics and/or fine china, for various stages of the process) and there'd definitely be some complaints that it does not taste like a proper cuppa (particularly if oil residue from the ampulla has made its way into the tea). To use such objects to make tea would simply {{wiktionary|not cricket|not be cricket}}.&lt;br /&gt;
:The suggestion that this method is less angering than microwaving a mug emphasizes the British hate for microwaving.&lt;br /&gt;
&lt;br /&gt;
;Microwaving a mug&lt;br /&gt;
:As mentioned above, heating water in a microwave, for any purpose, is considered acceptable and common in the US. To do so to make tea is considered uncommon and borderline heretical{{acn}} in the UK. The reasons for this are difficult to pin down. Some argue that the microwave doesn't allow proper control over the water temperature (which is considered vital for proper tea-making), or doesn't easily allow the water to come to a full boil. Others raise the danger of superheating water which might boil over when the tea bag is added. Some people even argue that microwaving changes the quality or composition of the water in some way. The validity of these theories varies, but it's unlikely that any of them has enough objective basis to justify serious antipathy towards the method.&lt;br /&gt;
:Another disputed theory for the difference in approach surrounds convenience. Electric kettles and microwaves are both highly efficient methods of heating water with electricity, but electric kettles in the UK tend to draw significantly more power than either US kettles or microwaves (due, in part, to higher main voltage in the UK grid). As a result, UK kettles can heat an equivalent volume of water significantly faster than can microwaves. When making a single cup, the difference is unlikely to be significant, but when making tea for a whole family, or for guests (as is much more common in the UK), using a microwave would be much less convenient.&lt;br /&gt;
:Ultimately, though, the difference probably comes down to an accident of culture. Most likely, the preparation of tea simply has a sense of tradition and ritual in Britain, and using a microwave feels crass, modern, and completely disconnected from the cultural associations of tea. &lt;br /&gt;
:The title text continues with this theme, by reassuring us that the microwaved mug doesn't have a teabag in it (analogous to the 'boiling tea-kettle' version). It then strays into farce, though, by suggesting it is separately microwaved. In reality there is no obvious reason to microwave a teabag: Microwave ovens heat water molecules almost exclusively, and tealeaves (and bag) should be dry before use, with no water molecules to heat. The wrongheadedness of this claim does little but provoke a skeptic's doubts about how utterly perverse this colonial variation on tea-making has become.&lt;br /&gt;
&lt;br /&gt;
===Other tea controversies===&lt;br /&gt;
&lt;br /&gt;
Other sources of controversy in the {{w|A Nice Cup of Tea|correct way to make tea}} are not covered in the comic, or hidden behind the other 'obvious errors'. Perhaps primary among these is the question of the difference between making (and steeping) the tea in a teapot and pouring the water over a teabag in a mug.&lt;br /&gt;
&lt;br /&gt;
The former tends to be a more formal method, to serve in polite company, ''or'' from the traditional need to prepare a large volume of tea for an indeterminate number of recipients and refills, such as in a canteen/cafeteria situation, where the 'pot' stays hot for almost as long as the supply lasts. A prepared teapot of tea allows a fairly consistent 'brew' that is readily poured out into teacups (or mugs) as and when required, and can be readily topped up if an increase in the supply is needed.&lt;br /&gt;
&lt;br /&gt;
The latter method relies upon individual teabags or loose-leaf tea in an individual infuser, and lets each recipient leave the tea in for as long as they personally prefer (or end up having to), which reflects more individual flexibility. Again, this splits between 'high' and 'low' class use. The infamous &amp;quot;builders' tea&amp;quot; often has the teabag left in for a long time (even during drinking), with plenty of milk and sugar, to perhaps produce an increasingly dense brew as the workers concerned take opportune sips as they can during their work. Conversely, the trend in more stylish restaurants and tearooms tends to be to supply each customer their teacup together with an individual small vessel of freshly boiled water (rarely more than one or two cups-worth) and the recipient's choices of bagged tea (including fruit/herbal) and additions (milk, or equivalent, lemon, etc, plus sweeteners of all kinds), letting them prepare their own infusion exactly in their own way; this is often presented with an air of 'continental sophistication', but may confuse the more down-to-Earth British tea-drinker used to their home method, as does the choice of dozens of fancy coffees from a barista when they'd be happy enough with a decent &amp;quot;instant coffee&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
The issue of whether the milk (not obligatory, but decisively traditional) should be put in ''before'' the tea (or teabag!) is also often considered {{tvtropes|SeriousBusiness|Serious Business}}...&lt;br /&gt;
&lt;br /&gt;
In [https://www.foodandwine.com/why-you-should-add-salt-to-tea-8549735 January of 2024], Michelle Francl, Ph.D., a chemistry professor at Bryn Mawr College in Pennsylvania, suggested putting a pinch of salt into tea, saying that the sodium in salt blocks the bitter taste of tea. This prompted a great outcry by [https://www.theguardian.com/food/2024/jan/24/perfect-cup-of-tea-needs-a-pinch-of-salt-and-squeeze-of-lemon-says-us-chemist?scrlybrkr=361c99cc The Guardian] and a statement by the US embassy on X (Twitter): “Today's media reports of an American Professor's recipe for the 'perfect' cup of tea has landed our special bond with the United Kingdom in hot water … We want to ensure[sic] the good people of the U.K. that the unthinkable notion of adding salt to Britain's national drink is not official United States Policy. And never will be. ... The US embassy will continue to make tea in the proper way – by microwaving it.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A line chart is shown. Above the chart are, from top to bottom, a heading, a subheading, and an arrow pointing right with a label above. On the line there are four labeled tick marks, with the labels written beneath the line. A small curved line is going from each label to below their tick. The first two ticks are close together on the far left side of the graph, the third is approximately in the center, and the fourth is on the far right side of the graph.] &lt;br /&gt;
:&amp;lt;big&amp;gt;Ways of making tea&amp;lt;/big&amp;gt;&lt;br /&gt;
:By how angry British people get when Americans do them&lt;br /&gt;
:More angry&lt;br /&gt;
:Making it in a kettle&lt;br /&gt;
:Boiling water in a pot, steeping in a mug&lt;br /&gt;
:Making it in a chalice and ampulla stolen from the Crown Jewels&lt;br /&gt;
:Microwaving a mug&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Food]]&lt;br /&gt;
[[Category:Rankings]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3022:_Making_Tea&amp;diff=400955</id>
		<title>3022: Making Tea</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3022:_Making_Tea&amp;diff=400955"/>
				<updated>2025-12-07T03:01:02Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Other tea controversies */ Simplify pronouns&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3022&lt;br /&gt;
| date      = December 9, 2024&lt;br /&gt;
| title     = Making Tea&lt;br /&gt;
| image     = making_tea_2x.png&lt;br /&gt;
| imagesize = 690x291px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = No, of course we don't microwave the mug WITH the teabag in it. We microwave the teabag separately.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{w|Tea}} is exceptionally popular in the United Kingdom (although [https://www.bbc.co.uk/news/articles/c4gpll9l535o decreasingly so], and not as serious a business as in {{w|Japanese tea ceremony|Japan}} and {{w|Chinese tea culture|China}}). Electric kettles are a standard appliance in British homes (used to boil water for tea, coffee, soup powders, instant mash, etc) and teapots and other related crockery can be found in many cupboards, or even on a shelf in full display, whether or not regularly used. British people are perceived as taking tea seriously, having very specific and strongly held opinions on the proper way to make tea. In contrast, tea (especially hot tea) is less commonplace in the United States of America (Randall's native country), and few people are particularly serious about it. Coffee is a much more common hot beverage, and both homes and offices are far more likely to have automatic coffee makers than electric kettles. While some US households have kettles that can be put on a stove top, many do not have any specific device to boil water. As a result, when Americans need a cup of hot water — for tea or otherwise — the options are usually to use a pan on the stove, or to simply microwave a mug of water (the latter probably being more common in modern times). &lt;br /&gt;
&lt;br /&gt;
British people are stereotyped as taking genuine offense to microwaved water, believing it to be an objectively incorrect way to make tea. Randall mocks this stereotype through exaggeration, saying British people would be significantly less offended by someone stealing {{w|Crown Jewels of the United Kingdom|the Crown Jewels}} and using those for tea-making than they would be by tea made with a cup of microwaved water.&lt;br /&gt;
&lt;br /&gt;
===Methods mentioned===&lt;br /&gt;
;Making it in a kettle&lt;br /&gt;
:Perhaps an intentional misnomer. Water may be ''boiled'' in a kettle, but the tea itself is made in a separate {{w|teapot}}, with loose or bagged tea-leaves, ready for pouring into any number of {{w|teacup}}s, {{w|mug}}s or {{w|vacuum flask|thermos flask}} as required. Making tea actually ''in'' the kettle, by placing the tea in with the water and then boiling it, would be considered ''very'' bad form  and render the kettle less useful for its other purposes (and likely void your warranty). Boiling the water in a kettle is standard practice (occasionally a {{w|Water heating|potable water geyser}} or similar may be available), leaving the tea-making process to occur in the teapot (as above) or the drinking vessel (as below).&lt;br /&gt;
&lt;br /&gt;
;Boiling water in a pot, steeping in a mug&lt;br /&gt;
:Identical to the basic boiling process above, except using a pot (commonly called a 'saucepan' in the UK) on the stove, rather than a kettle. This is slightly less convenient than using a kettle (since pans generally lack a dedicated spout for pouring and a whistle to signal when the water boils), but is otherwise functionally identical. Nonetheless, the comic notes that Brits would take mild offense, considering it to be inferior to using a kettle.&lt;br /&gt;
:To confuse matters, British people would normally take '{{wiktionary|pot#Noun|pot}}' (in the specific context of tea-making) to be [https://idioms.thefreedictionary.com/one+for+the+pot short for 'teapot']. However, a ceramic teapot should ''never'' be directly heated in the manner of a pan or a kettle. It should be filled with freshly boiled water, ''ideally'' after an initial small splash of hot water is swirled around it to warm the teapot to prevent cracking and then the requisite number of teabags (or quantity of tealeaves) dropped in.&lt;br /&gt;
&lt;br /&gt;
;Making it in a chalice and ampulla stolen from the Crown Jewels&lt;br /&gt;
:A {{w|chalice}} is an ornate type of cup; an {{w|ampulla}} is a type of flask or bottle. Both are typically now terms used in relation to objects used in ritual. Randall is likely drawing a parallel here with the ritualism and particularity with which some people surround the making of tea and its associated artefacts.&lt;br /&gt;
:The {{w|Crown_Jewels_of_the_United_Kingdom|Crown Jewels}} are a set of items belonging to the British monarchy, including ceremonial items and clothing using in royal coronations. These items have both major cultural significance, due to their historical connection with the monarchy, and major objective value, as many of them are heavily jeweled and/or made of precious metals. To steal items from this collection for the purpose of tea-making would obviously be both highly criminal and highly disrespectful. The ampulla referenced is used to anoint the monarch with oil during the coronation ceremony and the chalice may refer to a {{w|Eucharist|Communion vessel}}, giving them religious significance as well.&lt;br /&gt;
:More importantly for many, though, this would be incorrect tea-ware. The gold or silver chalices and gold ampulla are doubtful as being of suitable materials for British tea-making (as opposed to using cast iron, stainless steel, silver-plate, robust ceramics and/or fine china, for various stages of the process) and there'd definitely be some complaints that it does not taste like a proper cuppa (particularly if oil residue from the ampulla has made its way into the tea). To use such objects to make tea would simply {{wiktionary|not cricket|not be cricket}}.&lt;br /&gt;
:The suggestion that this method is less angering than microwaving a mug emphasizes the British hate for microwaving.&lt;br /&gt;
&lt;br /&gt;
;Microwaving a mug&lt;br /&gt;
:As mentioned above, heating water in a microwave, for any purpose, is considered acceptable and common in the US. To do so to make tea is considered uncommon and borderline heretical{{acn}} in the UK. The reasons for this are difficult to pin down. Some argue that the microwave doesn't allow proper control over the water temperature (which is considered vital for proper tea-making), or doesn't easily allow the water to come to a full boil. Others raise the danger of superheating water which might boil over when the tea bag is added. Some people even argue that microwaving changes the quality or composition of the water in some way. The validity of these theories varies, but it's unlikely that any of them has enough objective basis to justify serious antipathy towards the method.&lt;br /&gt;
:Another disputed theory for the difference in approach surrounds convenience. Electric kettles and microwaves are both highly efficient methods of heating water with electricity, but electric kettles in the UK tend to draw significantly more power than either US kettles or microwaves (due, in part, to higher main voltage in the UK grid). As a result, UK kettles can heat an equivalent volume of water significantly faster than can microwaves. When making a single cup, the difference is unlikely to be significant, but when making tea for a whole family, or for guests (as is much more common in the UK), using a microwave would be much less convenient.&lt;br /&gt;
:Ultimately, though, the difference probably comes down to an accident of culture. Most likely, the preparation of tea simply has a sense of tradition and ritual in Britain, and using a microwave feels crass, modern, and completely disconnected from the cultural associations of tea. &lt;br /&gt;
:The title text continues with this theme, by reassuring us that the microwaved mug doesn't have a teabag in it (analogous to the 'boiling tea-kettle' version). It then strays into farce, though, by suggesting it is separately microwaved. In reality there is no obvious reason to microwave a teabag: Microwave ovens heat water molecules almost exclusively, and tealeaves (and bag) should be dry before use, with no water molecules to heat. The wrongheadedness of this claim does little but provoke a skeptic's doubts about how utterly perverse this colonial variation on tea-making has become.&lt;br /&gt;
&lt;br /&gt;
===Other tea controversies===&lt;br /&gt;
&lt;br /&gt;
Other sources of controversy in the {{w|A Nice Cup of Tea|correct way to make tea}} are not covered in the comic, or hidden behind the other 'obvious errors'. Perhaps primary among these is the question of the difference between making (and steeping) the tea in a teapot and pouring the water over a teabag in a mug.&lt;br /&gt;
&lt;br /&gt;
The former tends to be a more formal method, to serve in polite company, ''or'' from the traditional need to prepare a large volume of tea for an indeterminate number of recipients and refills, such as in a canteen/cafeteria situation, where the 'pot' stays hot for almost as long as the supply lasts. A prepared teapot of tea allows a fairly consistent 'brew' that is readily poured out into teacups (or mugs) as and when required, and can be readily topped up if an increase in the supply is needed.&lt;br /&gt;
&lt;br /&gt;
The latter method relies upon individual teabags or loose-leaf tea in an individual infuser, and lets each recipient leave the tea in for as long as they personally prefer (or end up having to), which reflects more individual flexibility. Again, this splits between 'high' and 'low' class use. The infamous &amp;quot;builders' tea&amp;quot; often has the teabag left in for a long time (even during drinking), with plenty of milk and sugar, to perhaps produce an increasingly dense brew as the workers concerned take opportune sips as they can during their work. Conversely, the trend in more stylish restaurants and tearooms tends to be to supply each customer their teacup together with an individual small vessel of freshly boiled water (rarely more than one or two cups-worth) and the recipient's choices of bagged tea (including fruit/herbal) and additions (milk, or equivalent, lemon, etc, plus sweeteners of all kinds), letting them prepare their own infusion exactly in their own way; this is often presented with an air of 'continental sophistication', but may bemuse and confuse the more down-to-Earth British tea-drinker used to their home method, as does the choice of dozens of fancy coffees from a barista when they'd be happy enough with a decent &amp;quot;instant coffee&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
The issue of whether the milk (not obligatory, but decisively traditional) should be put in ''before'' the tea (or teabag!) is also often considered {{tvtropes|SeriousBusiness|Serious Business}}...&lt;br /&gt;
&lt;br /&gt;
In [https://www.foodandwine.com/why-you-should-add-salt-to-tea-8549735 January of 2024], Michelle Francl, Ph.D., a chemistry professor at Bryn Mawr College in Pennsylvania, suggested putting a pinch of salt into tea, saying that the sodium in salt blocks the bitter taste of tea. This prompted a great outcry by [https://www.theguardian.com/food/2024/jan/24/perfect-cup-of-tea-needs-a-pinch-of-salt-and-squeeze-of-lemon-says-us-chemist?scrlybrkr=361c99cc The Guardian] and a statement by the US embassy on X (Twitter): “Today's media reports of an American Professor's recipe for the 'perfect' cup of tea has landed our special bond with the United Kingdom in hot water … We want to ensure[sic] the good people of the U.K. that the unthinkable notion of adding salt to Britain's national drink is not official United States Policy. And never will be. ... The US embassy will continue to make tea in the proper way – by microwaving it.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A line chart is shown. Above the chart are, from top to bottom, a heading, a subheading, and an arrow pointing right with a label above. On the line there are four labeled tick marks, with the labels written beneath the line. A small curved line is going from each label to below their tick. The first two ticks are close together on the far left side of the graph, the third is approximately in the center, and the fourth is on the far right side of the graph.] &lt;br /&gt;
:&amp;lt;big&amp;gt;Ways of making tea&amp;lt;/big&amp;gt;&lt;br /&gt;
:By how angry British people get when Americans do them&lt;br /&gt;
:More angry&lt;br /&gt;
:Making it in a kettle&lt;br /&gt;
:Boiling water in a pot, steeping in a mug&lt;br /&gt;
:Making it in a chalice and ampulla stolen from the Crown Jewels&lt;br /&gt;
:Microwaving a mug&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Food]]&lt;br /&gt;
[[Category:Rankings]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3021:_Seismologists&amp;diff=400951</id>
		<title>3021: Seismologists</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3021:_Seismologists&amp;diff=400951"/>
				<updated>2025-12-07T01:56:30Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Avoid repetition. Also, avoid repetition.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3021&lt;br /&gt;
| date      = December 6, 2024&lt;br /&gt;
| title     = Seismologists&lt;br /&gt;
| image     = seismologists_2x.png&lt;br /&gt;
| imagesize = 327x270px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = And even when they're not distracted, they usually get kicked out for illegal under-the-net 'subduction spikes'.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
In seismology, a {{w|Focal mechanism#Moment tensor solutions|&amp;quot;beachball&amp;quot; diagram}} is a [https://www.usgs.gov/programs/earthquake-hazards/focal-mechanisms-or-beachballs graphic] that is used to show the type of slip that occurs in an earthquake. There are three types of slips: strike-slip, normal, and thrust, each with a corresponding beachball diagram. [[Ponytail]] is playing {{w|beach volleyball}}, a form of {{w|volleyball}} played with a {{w|beach ball}}. She is distracted by the resemblance of the rotating two-shaded beach ball to a strike-slip beachball diagram (something she uses in her field of study) and fails to play the ball, causing her to be hit on the head.&lt;br /&gt;
&lt;br /&gt;
The comic could be seen as playing on the dual meaning of the word &amp;quot;fault&amp;quot;. In {{w|Fault_(geology)|geology}}, it refers to a fracture or zone of fractures between two blocks of rock, which can allow them to move past each other. In volleyball, a [https://www.beachup.app/en/beach-volleyball-guide/beach-volleyball-rules/faults/ &amp;quot;fault&amp;quot;] refers to a play violation that causes a team to lose a point. Had her opponent committed a fault within the rules of the game, the point would be finished, and there would be no reason for Ponytail to attempt to play the ball. &amp;lt;!-- However, the comic doesn't explicitly use the word &amp;quot;fault&amp;quot; in the context of vollyball. --&amp;gt; &amp;lt;!-- *Ummm, yes it does. Someone playing volleyball actively yells out about a fault, as players are wont to do in an appeal to the umpire (or just for a fair-play concession by the opposing team)... Ambiguous, but clearly in a possible volleyball context, I would say.* --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The {{w|subduction}} referred to in the title text occurs when one tectonic plate slides underneath another. In volleyball, a {{w|Spike (volleyball)|spike}} is a type of shot, typically the third of a team's three allowed touches, hit hard over the net from high up down toward the floor on the opponent's side. A &amp;quot;subduction spike&amp;quot; would be a spike hit under the net, and would indeed not be legal and would result in a point for the opponent. Subduction is mentioned in several other comics: [[Beret Guy]] once obtained a [[1388: Subduction License|subduction license]], and it was mentioned in [[1829: Geochronology]] and again in [[3059: Water Damage]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Megan, Ponytail and Hairy are playing beach volleyball using a beach ball rather than a volleyball. Megan has her arms outreached; she has just hit the ball across the net towards Ponytail. The beach ball, shown with black and white pattern, is drawn three times to indicate its path, each rotated differently. Four dashed lines are drawn to indicate the movement: From Megan going above the net, then heading towards Ponytail, then one line down to her head (without showing the ball as it hits), and finally after bouncing off Ponytail’s head where the ball bounces towards the bottom of the net. When the ball hits Ponytail it makes a sound, which is written inside a wavy frame above her head. Hairy is running towards Ponytail from behind her with his arm outstretched. Wavy lines are shown on the ground to indicate the sandy surface they are playing on.]&lt;br /&gt;
:Ponytail: Ooh, a strike-slip fault!&lt;br /&gt;
:Ball hitting her head: ''Bonk!''&lt;br /&gt;
:Ponytail: '''''Ow!'''''&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Why seismologists are bad at beach ball volleyball&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*Although probably unrelated, a [https://apnews.com/article/california-earthquake-tsunami-warning-e1c73514097b78dfc082e40f98d0d426 7.0 magnitude earthquake] hit Northern California, USA at 10:44 AM PST the previous day, causing tsunami warnings (which were later cancelled) and a state of emergency to be called.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Earthquakes]]&lt;br /&gt;
[[Category:Sport]]&lt;br /&gt;
[[Category:Subduction]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400949</id>
		<title>3020: Infinite Armada Chess</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400949"/>
				<updated>2025-12-07T01:09:46Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Replace x with multiplication symbol&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3020&lt;br /&gt;
| date      = December 4, 2024&lt;br /&gt;
| title     = Infinite Armada Chess&lt;br /&gt;
| image     = infinite_armada_chess_2x.png&lt;br /&gt;
| imagesize = 282x497px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Stockfish 16 suggests the unconventional opening 1. RuntimeError: Out of bounds memory access&lt;br /&gt;
}} &lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
{{w|Chess}} is a board game played between two players on an 8×8 chessboard. In standard chess, each player has 8 pawns and 8 other pieces: 2 rooks, 2 knights, 2 bishops, a queen, and a king. {{w|Chess variants}} are chess games in which the rules, board sizes, and/or piece behaviors are altered. In the chess variant presented here, a non-standard chessboard is used, which increases the number of ranks without limit in both directions. Each square beyond the 8 standard ranks is filled by an additional queen. The {{w|Queen (chess)|queen}} is the most powerful piece on the chessboard, having the powers of a {{w|Bishop (chess)|bishop}} and a {{w|Rook (chess)|rook}} combined. With an infinite armada of queens, each player will have more resources to call on. Sometimes having a bunch of queens [https://x.com/chesscom/status/1841540380363211164 doesn't go very well], however.&lt;br /&gt;
&lt;br /&gt;
In the title text, {{w|Stockfish (Chess)|Stockfish}} is a {{w|chess engine}} designed to evaluate a chessboard and find the best move.  However, it is designed to handle finite boards.{{cn}} In this scenario, Stockfish has encountered a runtime error and is displaying that instead of recommending an opening move. The runtime error in question, &amp;quot;RuntimeError: Out of bounds memory access&amp;quot;, is unique to the cross-browser {{w|WebAssembly}} implementations of {{w|WebGL}}, which suggests that the issue was that there was not enough memory to {{w|Rendering (computer graphics)|render}} an infinite board in a {{w|web browser}} window.&lt;br /&gt;
&lt;br /&gt;
This comic was published in the middle of the {{w|World Chess Championship 2024|2024 World Chess Championship}}, between the World Champion Ding Liren and the Challenger Gukesh Dommaraju.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A chess board in the starting position, except it extends further at the top and bottom, going beyond the panel. The extra squares are filled with queens of the sides' respective colors.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Infinite armada chess&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Chess]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400948</id>
		<title>3020: Infinite Armada Chess</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400948"/>
				<updated>2025-12-07T01:08:04Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Omit needless words&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3020&lt;br /&gt;
| date      = December 4, 2024&lt;br /&gt;
| title     = Infinite Armada Chess&lt;br /&gt;
| image     = infinite_armada_chess_2x.png&lt;br /&gt;
| imagesize = 282x497px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Stockfish 16 suggests the unconventional opening 1. RuntimeError: Out of bounds memory access&lt;br /&gt;
}} &lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
{{w|Chess}} is a board game played between two players on an 8x8 chessboard. In standard chess, each player has 8 pawns and 8 other pieces: 2 rooks, 2 knights, 2 bishops, a queen, and a king. {{w|Chess variants}} are chess games in which the rules, board sizes, and/or piece behaviors are altered. In the chess variant presented here, a non-standard chessboard is used, which increases the number of ranks without limit in both directions. Each square beyond the 8 standard ranks is filled by an additional queen. The {{w|Queen (chess)|queen}} is the most powerful piece on the chessboard, having the powers of a {{w|Bishop (chess)|bishop}} and a {{w|Rook (chess)|rook}} combined. With an infinite armada of queens, each player will have more resources to call on. Sometimes having a bunch of queens [https://x.com/chesscom/status/1841540380363211164 doesn't go very well], however.&lt;br /&gt;
&lt;br /&gt;
In the title text, {{w|Stockfish (Chess)|Stockfish}} is a {{w|chess engine}} designed to evaluate a chessboard and find the best move.  However, it is designed to handle finite boards.{{cn}} In this scenario, Stockfish has encountered a runtime error and is displaying that instead of recommending an opening move. The runtime error in question, &amp;quot;RuntimeError: Out of bounds memory access&amp;quot;, is unique to the cross-browser {{w|WebAssembly}} implementations of {{w|WebGL}}, which suggests that the issue was that there was not enough memory to {{w|Rendering (computer graphics)|render}} an infinite board in a {{w|web browser}} window.&lt;br /&gt;
&lt;br /&gt;
This comic was published in the middle of the {{w|World Chess Championship 2024|2024 World Chess Championship}}, between the World Champion Ding Liren and the Challenger Gukesh Dommaraju.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A chess board in the starting position, except it extends further at the top and bottom, going beyond the panel. The extra squares are filled with queens of the sides' respective colors.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Infinite armada chess&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Chess]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400947</id>
		<title>3020: Infinite Armada Chess</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3020:_Infinite_Armada_Chess&amp;diff=400947"/>
				<updated>2025-12-07T00:51:46Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ The link is off-topic but close enough. But the mention of what to do &amp;quot;here&amp;quot; is confusing.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3020&lt;br /&gt;
| date      = December 4, 2024&lt;br /&gt;
| title     = Infinite Armada Chess&lt;br /&gt;
| image     = infinite_armada_chess_2x.png&lt;br /&gt;
| imagesize = 282x497px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Stockfish 16 suggests the unconventional opening 1. RuntimeError: Out of bounds memory access&lt;br /&gt;
}} &lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
{{w|Chess}} is a board game played between two players on an 8x8 chessboard. In standard chess, each player has 8 pawns and 8 other pieces: 2 rooks, 2 knights, 2 bishops, a queen, and a king. {{w|Chess variants}} are chess games in which the rules, board sizes, and/or piece behaviors are altered. In the chess game presented here, a non-standard chessboard is used, which extends vertically past the original 1st and 8th ranks off the page to infinity in both directions. Each square beyond the 8 standard ranks is filled by an additional queen. The {{w|Queen (chess)|queen}} is the most powerful piece on the chessboard, having the powers of a {{w|Bishop (chess)|bishop}} and a {{w|Rook (chess)|rook}} combined. With an infinite armada of queens, each player will have more resources to call on. Sometimes having a bunch of queens [https://x.com/chesscom/status/1841540380363211164 doesn't go very well], however.&lt;br /&gt;
&lt;br /&gt;
In the title text, {{w|Stockfish (Chess)|Stockfish}} is a {{w|chess engine}} designed to evaluate a chessboard and find the best move.  However, it is designed to handle finite boards, so it's likely that some problem will occur as it runs on an infinite one. Here that problem shows up as the game's move #1, &amp;quot;RuntimeError: Out of bounds memory access&amp;quot;. This error message is unique to the cross-browser {{w|WebAssembly}} implementations of {{w|WebGL}}, so there was probably not enough memory to {{w|Rendering (computer graphics)|render}} an infinite board in a {{w|web browser}} window.&lt;br /&gt;
&lt;br /&gt;
All but a finite number of pieces are stuck at every step, and thus there are only a finite number of possible moves, but the game is unbounded (each capture resets the draw clock) and each capture also increases the number of possible pieces which can move by opening up more space on the board. No finite amount of space is guaranteed to suffice to analyze the game — contrast with standard chess in which surprisingly little memory (given impossibly vast, but finite, amounts of time) is needed to play perfectly. Still, as in regular chess, a program which understood that only a finite number of pieces are accessible could play the same way programs play conventional chess.&lt;br /&gt;
&lt;br /&gt;
However, without specifically coding Stockfish to be aware of the logical certainty of the infinite number of queens being blocked, it is likely to still be checking ''every'' piece in turn, long after it has successfully prepared to establish (or perhaps [[2407: Depth and Breadth|actually explored]]) the relative strategical advantages of undertaking the twenty initial moves that White could make. Or, in the algorithm's worst case scenario, it has tried to start its movement-checking process at the 'rearmost rank', and has encountered the error before managing to establish (let alone assess) ''any'' valid opening moves. By easy induction, the human player should be able to establish an intrinsic understanding that everything behind two full ranks of undisturbed pieces (or beyond them, when applied to the opponent's position on the other side of the board) is unable to move, where no gaps exist to shuffle around in, but the code (if designed for finite, though perhaps arbitrary, boards) is unlikely to natively have the complexity to derive this computational detail from first principles, or even establish that it might hit a {{w|halting problem}} failure should it somehow avoid the issue of resources.&lt;br /&gt;
&lt;br /&gt;
This comic was published in the middle of the {{w|World Chess Championship 2024|2024 World Chess Championship}}, between the World Champion Ding Liren and the Challenger Gukesh Dommaraju.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A chess board in the starting position, except it extends further at the top and bottom, going beyond the panel. The extra squares are filled with queens of the sides' respective colors.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Infinite armada chess&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Chess]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=145:_Parody_Week:_Dinosaur_Comics&amp;diff=390633</id>
		<title>145: Parody Week: Dinosaur Comics</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=145:_Parody_Week:_Dinosaur_Comics&amp;diff=390633"/>
				<updated>2025-11-12T03:41:05Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ It's not about Imperial Earth&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 145&lt;br /&gt;
| date      = August 18, 2006&lt;br /&gt;
| title     = Parody Week: Dinosaur Comics&lt;br /&gt;
| image     = dinosaur_comics.png&lt;br /&gt;
| titletext = Guys: while I was writing this, I accidentally swallowed a table-size slab of drywall. I know! Wacky.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic is a part of the [[:Category:Parody Week|Parody Week]], just joking about other {{w|webcomics}}. This series was released on five consecutive days (Monday-Friday), not over the usual Monday/Wednesday/Friday schedule, and it comprises the following five {{w|parodies}}:&lt;br /&gt;
*[[141: Parody Week: Achewood]]&lt;br /&gt;
*[[142: Parody Week: Megatokyo]]&lt;br /&gt;
*[[143: Parody Week: TFD and Natalie Dee]]&lt;br /&gt;
*[[144: Parody Week: A Softer World]]&lt;br /&gt;
*[[145: Parody Week: Dinosaur Comics]]&lt;br /&gt;
&lt;br /&gt;
{{w|Dinosaur Comics}} is a webcomic by {{w|Ryan North}}. The artwork never changes, save a few rare exceptions, and only the dialogue is different. [[Randall]] traced the comic's usual artwork, though the drawing of the house about to be squashed in panel 3 is a more rudimentary rendition, and the person about to be squashed in panel 4 has been changed into [[Cueball]] rather than a woman in bright yellow and pink clothes.&lt;br /&gt;
&lt;br /&gt;
For those who haven't read it, this is a [http://www.qwantz.com/index.php?comic=1387 typical strip], and [http://www.qwantz.com/index.php?comic=2079 here's] a strip dealing with the same subject as this comic (but posted five years after it). See also [http://www.qwantz.com/index.php?comic=2420 this particular example], where the title text actually refer to Randall and xkcd.&lt;br /&gt;
&lt;br /&gt;
Randall makes several shots at recurring themes in Dinosaur Comics. T-Rex, the green {{w|Tyrannosaurus}}, is bold and enthusiastic, discussing various topics, a favorite of which appears to be linguistics (North got his degree in computational linguistics). This time, he is talking about &amp;quot;{{w|Singular_they|they}}&amp;quot; being used as a {{w|Grammatical_person|third person}} {{w|Grammatical number|singular}} {{w|Gender-specific_and_gender-neutral_pronouns|gender-free pronoun}} and how it should be more widely used, even though its acceptance varies. {{w|Dromiceiomimus}}, the white dinosaur in the third panel, usually responds calmly to T-Rex's discussions. T-Rex then elaborates on how singular &amp;quot;they&amp;quot; has been used for centuries (specifically since the fourteenth century), with the change in convention being relatively recent (having fallen out of &amp;quot;fashion&amp;quot; in the nineteenth century). Technically, the English language lacks {{w|Personal pronoun|personal pronouns}} that are {{w|Epicenity|gender-neutral}} in the singular third-person &amp;amp;mdash; that is, there are only gender-specific personal pronouns such as &amp;quot;{{w|He (pronoun)|he}}&amp;quot; and &amp;quot;{{w|She (pronoun)|she}}&amp;quot; &amp;amp;mdash; so when a gender-neutral pronoun is needed, {{w|Plural|plural}} pronouns such as &amp;quot;{{w|They|they}}&amp;quot; (which ''are'' gender-neutral) are often used instead. There is some debate about whether this is a grammatical error, which may result in the use of grammatically correct, but cumbersome, gender-neutral phrases such as &amp;quot;he or she&amp;quot;, &amp;quot;him or her&amp;quot;, &amp;quot;his or hers&amp;quot; and so on. To compensate for these shortcomings, other gender-neutral personal pronouns for the singular third-person have also been introduced, such as &amp;quot;he/she&amp;quot;, &amp;quot;s/he&amp;quot; and &amp;quot;xe&amp;quot; instead of &amp;quot;he or she&amp;quot;, or &amp;quot;hirs&amp;quot; instead of &amp;quot;his or hers.&amp;quot; T-Rex considers these constructs to be &amp;quot;ridiculous&amp;quot; and points out that they can be avoided by simply using the singular &amp;quot;they&amp;quot; instead.&lt;br /&gt;
&lt;br /&gt;
While &amp;quot;he/she&amp;quot; and &amp;quot;s/he&amp;quot; are commonly used as a gender-neutral pronoun when gender is unknown, &amp;quot;xe&amp;quot; and &amp;quot;hirs&amp;quot; are often used for {{w|genderqueer}} individuals. Genderqueer persons do not subscribe to a &amp;quot;binary&amp;quot; definition of gender, where the only genders are male and female, and may identify as having, just to name a few examples, a gender between male and female, a combination of both male and female genders, no gender (terms for this include &amp;quot;genderless&amp;quot;, &amp;quot;agender,&amp;quot; and &amp;quot;neutrois&amp;quot;), a {{w|Third Gender|separate gender}} from male and female, an unnameable gender, or a &amp;quot;fluid&amp;quot; gender identity that shifts between multiple genders (&amp;quot;genderfluidity&amp;quot;).&lt;br /&gt;
&lt;br /&gt;
{{w|Utahraptor}}, the orange dinosaur, typically contradicts T-Rex, but Randall subverts this pattern and has him agree. The comic suggests that the perpetual disagreement stems from a 'rift' in the author's mind, which would be healed if only he lived in a world where there were a {{w|Beringia|land bridge between Asia and North America}}.&lt;br /&gt;
&lt;br /&gt;
In the last panel, the narrator starts with &amp;quot;In a world…&amp;quot;, a phrase made famous by {{w|Don LaFontaine}} in movie trailers. &amp;quot;In a world…&amp;quot; is also likely a reference to the recurring gag of Dinosaur Comics suddenly jumping to alternate worlds or time periods that have whatever conditions T-Rex and his friends have been discussing, to humorous effect.&lt;br /&gt;
&lt;br /&gt;
The last sentence suggests that in this other world, everyone is {{w|bi-curious}}. This is a phenomenon in which people of a {{w|heterosexual}} or {{w|homosexual}} identity who, while showing some curiosity for a relationship or sexual activity with a person of the sex they do not favor, distinguish themselves from the {{w|bisexual}} label. Bi-curious has been used as the word of the day two days in a row on [http://www.qwantz.com/index.php?comic=311 May 11th] and [http://www.qwantz.com/index.php?comic=312 May 12th] 2004, so it's no wonder Randall put the word in this comic. Deliberately trite and awkward explorations of this subject matter are a recurring theme in Dinosaur Comics.&lt;br /&gt;
&lt;br /&gt;
Like [[xkcd]], Dinosaur Comics has [[Title text|title texts]]. Ryan's title texts are often bizarre non-sequiturs; the title text for the [http://qwantz.com/index.php?comic=2593 2593rd comic], eleven years after the appearance of the first comic, read &amp;quot;the sixth panel and the second panel are just zoomed versions of each other. IT'S TRUE. I'M SORRY. I COULDN'T BEAR CARRYING THIS TERRIBLE SECRET ANY LONGER.&amp;quot; The title text in this parody fits this pattern.&lt;br /&gt;
&lt;br /&gt;
However, the sixth panel of that particular comic starts with the words, &amp;quot;AND SO GOD REWINDS TIME TO THE SECOND PANEL OF THIS COMIC&amp;quot;, making that comic a more appropriate place for that title text than the average Dinosaur Comic. Also, [http://qwantz.com/index.php?comic=2596 2596th comic] has the title text &amp;quot;see, this is what you get for reading MY comic!  did xkcd award you any degrees today??  DIDN'T THINK SO.  check and mate, randy&amp;quot;, which is both relevant to the actual comic and mentions xkcd.&lt;br /&gt;
&lt;br /&gt;
T-Rex from ''Dinosaur Comics'' later appeared in [[1350: Lorenz]] (see [http://xkcd.com/1350/#p:f2b12f1e-bbae-11e3-801c-002590d77bdd this example story line], and the Dinosaur section under [[1350: Lorenz#Themes|Lorenz themes]]), where the actual images from Ryan's comic are used instead of copies by Randall. The final image of the actual comic was used in [[1452: Jurassic World]] and, as a mirror image, [[3012: The Future of Orion]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[T-Rex, a large green Tyrannosaurus, holds out his small arms to each side and the tail pointing up while speaking with a wide open pink mouth showing all his teeth. All the text is written like on a typewriter with both caps and lowercase letters, which is not normal in xkcd.]&lt;br /&gt;
:T-Rex: THINGS I AM UPPITY ABOUT: &amp;quot;They&amp;quot; as a third-person singular gender-free pronoun.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on T-Rex head holding his hands up under his mouth, and mouth even wider open so also the red tongue can be seen.]&lt;br /&gt;
:T-Rex: I'm all for it!&lt;br /&gt;
&lt;br /&gt;
:[Zoom out to show T-Rex to the left, mouth almost closed, arms in normal position, the tail pointing up, and lifting his left leg ready to smash his foot down through the roof of a brown log cabin with chimney and porch with a blue car holding in front of the house to the right. Further right is a smaller white/yellow dinosaur, Dromiceiomimus, standing away from T-Rex, but turning its long neck toward him.]&lt;br /&gt;
:Dromiceiomimus: But isn't that terrible grammar?&lt;br /&gt;
:T-Rex: Only by recent convention!  It's been in use that way for centuries, and its use is widely accepted!  ALSO: This lets us avoid ridiculous constructs like &amp;quot;he/she&amp;quot;, &amp;quot;s/he&amp;quot;, &amp;quot;xe&amp;quot; or &amp;quot;hirs&amp;quot;!&lt;br /&gt;
&lt;br /&gt;
:[T-Rex is moving left, so part of his head and his lifted right foot are outside the panels frame, pink mouth again partly open so tongue can be seen, but no teeth are drawn. Arms are still in normal position and the tail is pointing up. Beneath the part of his right foot visible, there is Cueball about to be squashed. Behind him an orange dinosaur, Utahraptor, has appeared. It looks like a smaller version of T-Rex, but with longer arms and very large claws on its rear legs. It has its pink mouth wide open to show its red tongue and teeth, also holding arm in front of it and the tail pointing up. It is moving forward standing only on one leg, the other lifted high up.]&lt;br /&gt;
:Utahraptor: T-Rex, I . . . agree.&lt;br /&gt;
:T-Rex: What?&lt;br /&gt;
:Utahraptor: That sounds good to me!&lt;br /&gt;
&lt;br /&gt;
:[T-Rex stand with both legs down, but wide spread out. The tails is almost down to the ground, only the tip pointing up. The arms are still in front of it towards the left, but it has turned its head, mouth almost closed, toward right looking at Utahraptor, which now stands on both legs, but like it is leaning forward on its toes, stretching up with arms held high, mouth less open, but tongue and teeth visible.]&lt;br /&gt;
:Utahraptor: Normally I'd jump in with an objection, but I think your point makes sense.&lt;br /&gt;
:T-Rex: Could it be that the rift in our author's mind has finally healed? Is he no longer locked in perpetual war with the self-doubt that lurks in his subc-&lt;br /&gt;
&lt;br /&gt;
:[The final part of the final words from T-Rex is interrupted in the previous panel and first finishes here after a narrator &amp;quot;speaks&amp;quot; before T-Rex with bold capital letters to the top right, and after to the bottom left. T-Rex is seen in full figure standing with wide open mouth, teeth and tongue visible, arms and tail up.]&lt;br /&gt;
:Narrator: '''IN A WORLD WHERE THERE IS STILL A LAND BRIDGE BETWEEN ASIA AND NORTH AMERICA FOR SOME REASON:'''&lt;br /&gt;
:T-Rex: -onscious?&lt;br /&gt;
:Narrator: '''ALSO HOW ABOUT IN THIS WORLD EVERYONE IS BICURIOUS'''&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*This was the [http://www.qwantz.com/index.php?comic=830 Dinosaur Comics strip] released the day before this comic&lt;br /&gt;
**Dinosaur Comics released MTWT, so there was no release on the Friday of this comics release.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Parody Week]]&lt;br /&gt;
[[Category:Comics with color]]&lt;br /&gt;
[[Category:Comics featuring Cueball]] &amp;lt;!-- being stepped on in panel 4 --&amp;gt;&lt;br /&gt;
[[Category:Dinosaurs]]&lt;br /&gt;
[[Category:Language]]&lt;br /&gt;
[[Category:Sex]] &amp;lt;!--Bi-curious--&amp;gt;&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2999:_Bad_Map_Projection:_The_United_Stralia&amp;diff=388746</id>
		<title>2999: Bad Map Projection: The United Stralia</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2999:_Bad_Map_Projection:_The_United_Stralia&amp;diff=388746"/>
				<updated>2025-10-13T19:15:46Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Omit needless words&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2999&lt;br /&gt;
| date      = October 16, 2024&lt;br /&gt;
| title     = Bad Map Projection: The United Stralia&lt;br /&gt;
| image     = bad_map_projection_the_united_stralia_2x.png&lt;br /&gt;
| imagesize = 740x651px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = This projection distorts both area and direction, but preserves Melbourne.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This is the eighth comic in the series of [[:Category:Bad Map Projections|Bad Map Projections]] displaying Bad Map Projection #102: The United Stralia. It follows [[2951: Bad Map Projection: Exterior Kansas]] (#45), released about three and a half months earlier, and was followed nine and a half months later by [[3122: Bad Map Projection: Interrupted Spheres]]. In this addition to the Bad Map Projections series, Randall has blended two different countries — the United States of America and Australia — into one.&lt;br /&gt;
&lt;br /&gt;
As with a number of Bad Map Projections, the primary joke is the naming of this ''as'' a &amp;quot;map projection&amp;quot;. Its depiction is particularly similar to [[2807: Bad Map Projection: ABS(Longitude)]], in which geography is overlaid upon other geography. It also follows the practice of [[2256: Bad Map Projection: South America]], in which a general continental shape is forced upon other areas, with the general geographical outline of the 48 contiguous US states being merged with the political boundaries of Australia (with exceptions, most obviously Australia's Bass Strait being retained in lieu of the US's central Florida). At a further level of merging, the US states are repacked as subdivisions within the various Australian ones; as with the likes of [[2394: Contiguous 41 States]], it also takes some liberties with the relative neighboring positioning of some of these, although not by totally removing any of the actual {{w|contiguous United States}}. Alaska and Hawaii aren't included, likely because the 48 contiguous US states better match the shape and size of Australia. Australia also has no territories that would make a good match in size or shape for Alaska and Hawaii.&lt;br /&gt;
&lt;br /&gt;
The geographically relative climate of the states of the USA is broadly opposite of Australia's. Australia's north is closest to the equator but the USA's north is farthest from the equator. Thus, if Australia's climate were literally applied to the US, Florida would be relatively cold while Maine would be hot. Likewise, applying USA's climate to Australia would make northern Australia unusually cold and southern Australia relatively hot.&lt;br /&gt;
&lt;br /&gt;
The map pokes fun at superficial and irrelevant similarities between features of the maps of the United States and Australia, such as the shape of the east coasts of {{w|New England}} and the {{w|Cape York Peninsula}}, and the distance to the southern tip of the island of {{w|Tasmania}} and the length of the {{w|Florida}} {{w|peninsula}}. The end result is to illustrate a fanciful place which does not actually exist and thus would have limited worth for navigating either Australia or the USA. The blending features cities from both countries on the map, e.g., San Francisco and Los Angeles (USA) close to Perth (Australia).&lt;br /&gt;
&lt;br /&gt;
The {{w|states and territories of Australia}} are depicted with black lines/labels, while the {{w|states of the United States}} and such cities as are taken from either nation are marked with gray. The Australian states are labeled with their full names, but the American states are given only their postal abbreviations. (Mississippi is mislabeled as MI, in addition to Michigan's own correct usage, instead of the official MS.) Western Australia is usually abbreviated to WA, but the convention here leaves that unambiguously assigned to the US state of Washington. Idaho, for some reason, is not labeled at all, and neither is the Australian island state of Tasmania.&lt;br /&gt;
&lt;br /&gt;
The title text makes a joke that this map does not preserve {{w|Equal-area projection|area}} or {{w|Conformal map projection|direction}} (typically, a map projection {{w|Map projection#Metric properties of maps|sacrifices one to preserve the other}}, or both to correctly depict a particular distance metric), but does preserve the city of Melbourne as a feature located on the map, near the actual location of {{w|Melbourne, Florida}}. Note that this is not the correct location of {{w|Melbourne}}, Australia, as it is far too much east in the bad map projection, but there is nothing to stop the shared Melbourne being entirely 'correct' and every ''other'' feature being shifted as a 'compromise'. The concept of a point being 'preserved', rather than actual dimensionally-meaningful quantities, is meaningless and just adds to the badness of the projection. There are other city names shared between the US and Australia, but they're not located at any obviously similar geographic locations; e.g., the location of Brisbane in the comic is based on the instance in {{w|Brisbane|Queensland}}, not {{w|Brisbane, California|California}} (potentially named after the main example) or {{w|Brisbane, North Dakota|North Dakota}}.&lt;br /&gt;
&lt;br /&gt;
This is the second comic in October 2024 in which Tasmania appears, the first being [[2996: CIDABM]]. Both feature the major island groups in the Bass Strait, in this case perhaps intended as a sort of analogue to the {{w|Florida Keys}}, or else orphaned coastline features across the 'missing' segment of the US peninsula.&lt;br /&gt;
&lt;br /&gt;
===Geographical relationships===&lt;br /&gt;
From west to east, the Australian states and territories contain the following U.S. states; the positions of Australian cities on the map are also listed:&lt;br /&gt;
&lt;br /&gt;
{{w|Western Australia}} contains the following U.S. states:&lt;br /&gt;
*Arizona&lt;br /&gt;
*California&lt;br /&gt;
** {{w|Perth, Australia|Perth}} appears on the California coast, about halfway between {{w|Los Angeles}} and {{w|San Francisco}}.&lt;br /&gt;
* Colorado&lt;br /&gt;
* Idaho (unlabeled)&lt;br /&gt;
* Montana&lt;br /&gt;
* Nevada&lt;br /&gt;
* New Mexico&lt;br /&gt;
* Oregon&lt;br /&gt;
* Utah&lt;br /&gt;
* Washington&lt;br /&gt;
* Wyoming&lt;br /&gt;
&lt;br /&gt;
{{w|Northern Territory}} contains the following U.S. states:&lt;br /&gt;
* Illinois&lt;br /&gt;
* Iowa&lt;br /&gt;
* Kansas&lt;br /&gt;
* Michigan ({{w|Upper Peninsula}})&lt;br /&gt;
* Minnesota&lt;br /&gt;
** {{w|Darwin (Australia)|Darwin}} is positioned in northwestern Minnesota.&lt;br /&gt;
* Missouri&lt;br /&gt;
* Nebraska&lt;br /&gt;
* North Dakota&lt;br /&gt;
* South Dakota&lt;br /&gt;
* Wisconsin&lt;br /&gt;
&lt;br /&gt;
{{w|South Australia}} contains the following U.S. states:&lt;br /&gt;
* Arkansas&lt;br /&gt;
* Louisiana&lt;br /&gt;
** {{w|Adelaide, Australia|Adelaide}} is located in the {{w|Mississippi River delta}} region of Louisiana.&lt;br /&gt;
* Oklahoma&lt;br /&gt;
* Texas&lt;br /&gt;
** West Texas is now in the Eucla time zone (GMT+8h45), although it is on the wrong side of the bent WA/SA border&lt;br /&gt;
&lt;br /&gt;
{{w|Queensland}} contains the following U.S. states and territories:&lt;br /&gt;
* Connecticut&lt;br /&gt;
* Delaware&lt;br /&gt;
* District of Columbia&lt;br /&gt;
* Indiana&lt;br /&gt;
* Kentucky&lt;br /&gt;
* Maine&lt;br /&gt;
* Maryland&lt;br /&gt;
* Massachusetts&lt;br /&gt;
* Michigan ({{w|Lower Peninsula}})&lt;br /&gt;
* New Hampshire&lt;br /&gt;
* New Jersey&lt;br /&gt;
* New York&lt;br /&gt;
* North Carolina&lt;br /&gt;
** {{w|Brisbane}} is located on the coast in southeast North Carolina.&lt;br /&gt;
* Ohio&lt;br /&gt;
* Pennsylvania&lt;br /&gt;
* Rhode Island&lt;br /&gt;
* Tennessee&lt;br /&gt;
* Vermont&lt;br /&gt;
* Virginia&lt;br /&gt;
* West Virginia&lt;br /&gt;
&lt;br /&gt;
{{w|New South Wales}} contains the following U.S. states:&lt;br /&gt;
&lt;br /&gt;
* Alabama&lt;br /&gt;
* Georgia&lt;br /&gt;
** {{w|Canberra}}, and presumably the rest of the {{w|Australian Capital Territory}}, is located in southeastern Georgia.&lt;br /&gt;
* Mississippi&lt;br /&gt;
* South Carolina&lt;br /&gt;
** {{w|Sydney, Australia|Sydney}} is located along the coast of South Carolina, near the location of {{w|Charleston, South Carolina|Charleston}}.&lt;br /&gt;
&lt;br /&gt;
{{w|Victoria, Australia|Victoria}} and {{w|Tasmania}} combine to make up the U.S. state of Florida, which is now divided into two non-contiguous parts. As a result Tasmania, which has a {{w|Omission of Tasmania from maps of Australia|history of being omitted from maps of Australia}}, is displayed but not named. {{w|Melbourne}} is located in the southeast corner of Victorian Florida. Although Tasmania's largest city {{w|Hobart}} is not labeled, it could share the same general location of Miami on the map. Alaska and Hawaii, the two non-{{w|Contiguous United States|contiguous states}} of the United States, do not appear in the projection. Other major geographic distortions include:&lt;br /&gt;
* The U.S. now has two {{w|quadripoint}}s, with the intersection of Colorado, Kansas, Oklahoma, and New Mexico joining the existing {{w|Four Corners}}.&lt;br /&gt;
* Indiana has a border with Arkansas.&lt;br /&gt;
* Alabama and Mississippi have lost Gulf Coast access, as Florida has a border with Louisiana.&lt;br /&gt;
* Missouri has a north-south border with Oklahoma.&lt;br /&gt;
* {{w|Miami, Florida|Miami}} is separated from the lower 48 states, as it is now located in the non-contiguous Tasmanian Florida.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
Above the map, in 3 paragraphs:&lt;br /&gt;
:Bad map projection #102:&lt;br /&gt;
:[In larger letters than the first or the third paragraph]: The United Stralia&lt;br /&gt;
:A 50/50 US/Australia blend&lt;br /&gt;
&lt;br /&gt;
[A map whose left side looks like that of Australia and whose right side looks like that of the United States, with Tasmania swapped out for a supposed island that looks like South Florida. The modified subdivisions of Australia are bordered with black with their names also black, while those of the United States are bordered with the same grey the city names are written with, with the US state abbreviations being a brighter one]:&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*In the New South Wales region, Mississippi is incorrectly labelled MI instead of MS. This error was never fixed.&lt;br /&gt;
&lt;br /&gt;
*The use of &amp;quot;Stralia&amp;quot; in the title echoes a common Australian verbal abbreviation for the country, often styled something like ''&amp;lt;!--note the difficulty of 'nicely' quoting a single single-quote!--&amp;gt;'Stralia'', in casual speech or sometimes {{w|Elsa Stralia#Stage name|more formally}}. This is a convenient punny replacement of the word &amp;quot;States&amp;quot; in &amp;quot;The United States&amp;quot;, as it starts with the same two letters.&lt;br /&gt;
&lt;br /&gt;
*On the day this comic was released, the xkcd homepage changed to show a [[:File:xkcd_homepage_strip_harris_for_president.png|Cueball installing a &amp;quot;Harris For President&amp;quot; sign]] in some grass, presumably on his lawn. This relates to the upcoming 2024 US presidential election.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Bad Map Projections]]&lt;br /&gt;
[[Category:US maps]]&lt;br /&gt;
[[Category:Portmanteau]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2998:_Ravioli-Shaped_Objects&amp;diff=388667</id>
		<title>2998: Ravioli-Shaped Objects</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2998:_Ravioli-Shaped_Objects&amp;diff=388667"/>
				<updated>2025-10-12T04:34:39Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Table of ravioli objects */ omit needless words&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2998&lt;br /&gt;
| date      = October 14, 2024&lt;br /&gt;
| title     = Ravioli-Shaped Objects&lt;br /&gt;
| image     = ravioli_shaped_objects_2x.png&lt;br /&gt;
| imagesize = 608x569px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's a real accomplishment to mess up a ravioli recipe badly enough that the resulting incident touches all four quadrants of the NFPA hazard diamond.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{w|Ravioli}} are a kind of stuffed {{w|pasta}} comprising a filling enveloped in thin pasta dough, commonly square shaped, and serving as the object of this comic's table, which can be seen as a kind of {{w|confusion matrix}}. This comic compares four ravioli-shaped objects (square shaped objects with bulging cross-sections due to their filling) with some common actions associated with them. See the [[#Table of ravioli objects|table]] below.&lt;br /&gt;
&lt;br /&gt;
The title text refers to the {{w|NFPA 704}} diagram for hazardous materials, a diamond figure put out by the {{w|National Fire Protection Association}} showing four kinds of fire hazards. A {{wiktionary|raviolo}} that touched all four quadrants would be a health hazard, fire hazard, and demonstrate (chemical) reactivity, and have some other miscellaneous hazard(s). The NFPA diamond was previously mentioned in [[2638: Extended NFPA Hazard Diamond]].&lt;br /&gt;
&lt;br /&gt;
===Table of ravioli objects===&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot; | style=&amp;quot;background:#E6C3C3;&amp;quot;&lt;br /&gt;
! Ravioli-Shaped Objects&lt;br /&gt;
! scope=&amp;quot;col&amp;quot;| Eat with a fork&lt;br /&gt;
! scope=&amp;quot;col&amp;quot;| Rest your head on&lt;br /&gt;
! scope=&amp;quot;col&amp;quot;| Puncture and slurp&lt;br /&gt;
! scope=&amp;quot;col&amp;quot;| Install in your phone&lt;br /&gt;
|-&lt;br /&gt;
! scope=&amp;quot;row&amp;quot;| {{w|Ravioli}}&lt;br /&gt;
| style=&amp;quot;background:#C5E6C3;&amp;quot;|Ravioli pasta would indeed be suitable to be eaten with a fork, as shown.&lt;br /&gt;
|Ravioli pasta is not structurally strong enough to support the weight of a human head while reclining, and would break and spill its filling over one's head and the object one is resting on. It may also be covered in sauce, adding to the general mess.&lt;br /&gt;
|style=&amp;quot;background:#FBF8CE;&amp;quot;|If the ravioli filling is fluid enough, one could slurp it out with a straw. This would waste the pasta component, if it were not eaten afterwards.&lt;br /&gt;
|Phones are not meant to run on ravioli. Stuffing a phone with a raviolo would cause it to break as shown, spilling the filling through the phone, which is a terrible idea.&lt;br /&gt;
&lt;br /&gt;
There is a mobile app named Ravioli, but it is unlikely that Randall had that in his mind.&lt;br /&gt;
|-&lt;br /&gt;
! scope=&amp;quot;row&amp;quot;| {{w|Throw pillow}}&lt;br /&gt;
|Throw pillows are made of cloth and are inedible, whether one uses a fork or not.&lt;br /&gt;
| style=&amp;quot;background:#C5E6C3;&amp;quot;|A throw pillow is meant to be used as head support while reclining on furniture.&lt;br /&gt;
|Throw pillows do not usually have liquids inside them. Hence, Cueball finds, to his dismay, that it's empty.&lt;br /&gt;
|Throw pillows are significantly bigger than phones and as such can't fit inside them, nor can typical pillows power them. As depicted, the attempt to force a pillow inside the phone has split the latter in half; the top half of the phone is visible on top of the pillow, and a bit of the bottom half can be seen beneath it.&lt;br /&gt;
|-&lt;br /&gt;
! scope=&amp;quot;row&amp;quot;| {{w|Capri Sun}}&lt;br /&gt;
|While the juice is indeed edible, it's practically impossible to consume liquids holding only a fork, especially when it's inside of a plastic sack. All this accomplishes is piercing the pouch and spilling the liquid all over Cueball.&lt;br /&gt;
|style=&amp;quot;background:#FBF8CE;&amp;quot;|A Capri Sun would serve as a waterbed of sorts, and wouldn't be unduly uncomfortable in a pinch. However, it's still possible that the pouch could rupture and leave you with a sticky head and no support.&lt;br /&gt;
|style=&amp;quot;background:#C5E6C3;&amp;quot;|Capri Suns are meant to be drunk like this, and are enjoyed by many.{{citation needed}}&lt;br /&gt;
|The phone shown is surrounded by spilled Capri Sun, implying that the attempt to force the two together punctured the pouch. The resulting spillage would most likely just result in the surface of the phone becoming annoyingly sticky, but if the liquid managed to get inside the phone (especially if the cover had been removed to try to put it in the compartment that usually holds the battery) it could cause a more significant and difficult to clean mess. Once actual power is provided (either an actual battery being subsequently used or the device offered external power by cable or inductance charger), the remaining residue could cause any number of further faults, and perhaps even critical component damage.&lt;br /&gt;
|-&lt;br /&gt;
! scope=&amp;quot;row&amp;quot;| Bulging {{w|Lithium-ion battery|Lithium Battery}}&lt;br /&gt;
|Bulging lithium batteries are explosive hazards and should not be punctured lest they explode. Additionally the contents of the battery are toxic if one were to somehow manage to eat the burning bits of the battery.&lt;br /&gt;
|A lithium battery is a small, hard object, and a bulging one is no exception. Since the bulging comes from a buildup of heat and gas, (the primary gases being hydrogen and carbon dioxide), it would also be a constant fire hazard, which would not be conducive to relaxation.{{cn}} Lithium battery themed throw pillows, which bulge similarly to such batteries, do exist as a novelty item. Notably, these types of batteries are often referred to as &amp;quot;spicy pillows&amp;quot;.&lt;br /&gt;
|Similarly to the 'eat with a fork' example, puncturing a bulging lithium battery is a bad idea.&lt;br /&gt;
|A bulging lithium battery ''could'' be installed in a phone, if one is willing to break the phone a bit (like the screen in the comic) to accommodate the bulging of the battery. More commonly, bulging batteries form inside the phone itself; if you don't usually have reason to charge or store it separately, you might only notice the problem when it causes the case or screen (shown as partly cracked, in the image) to distort significantly. In [[1422: My Phone is Dying]], [[Beret Guy]]'s phone is expanding. Although in his case it is not the normal bulging battery that causes this.&lt;br /&gt;
Upon noticing the bulging of a battery, it is strongly suggested that you uninstall it from the device it is in. It is at least no longer good at holding/delivering its power, and may even become at least as {{w|Lithium-ion battery#Fire hazard|hazardous}} as when used in all the other scenarios, so you should [https://www.reading.ac.uk/health-safety-services/fire-safety/lithium-battery-information/i-have-a-swollen-lithium-ion-battery-what-should-i-do ignore it at your peril].&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[A 4x4 grid of squares. The columns are labeled: Eat with a fork, rest your head on, puncture and slurp, install in your phone. The rows are: Ravioli, throw pillow, Capri Sun, bulging lithium battery. Each row has an image of each respective item above the title, with the words “Home Sweet Home” on the throw pillow, and “Fruit” on the Capri Sun.]&lt;br /&gt;
&lt;br /&gt;
Top-Left&lt;br /&gt;
:Ravioli, eat with a fork: [green]&lt;br /&gt;
::[Cueball sits on a chair in front of a table with a jar of sauce on it. He is eating from a plate from ravioli.]&lt;br /&gt;
::Cueball: ''Nom Nom Nom''&lt;br /&gt;
&lt;br /&gt;
Top Mid-Left&lt;br /&gt;
:Ravioli, Rest your head on: [red]&lt;br /&gt;
::[Cueball is lying down on a couch with ravioli smooshed on his head and the couch. Ravioli bits can be seen on the ground]&lt;br /&gt;
::Cueball: Eww.&lt;br /&gt;
&lt;br /&gt;
Top Mid-Right&lt;br /&gt;
:Ravioli, puncture and slurp: [yellow]&lt;br /&gt;
::[Cueball is slurping from a ravioli through a straw. In front of him is table with two plates, presumably with ravioli on them.]&lt;br /&gt;
::''Slurp''&lt;br /&gt;
&lt;br /&gt;
Top-Right&lt;br /&gt;
:Ravioli, Install in your phone: [red]&lt;br /&gt;
::[A phone is shown with bits of ravioli sticking out and tomato sauce is dripping out.]&lt;br /&gt;
&lt;br /&gt;
Top-Mid Left&lt;br /&gt;
:Throw pillow, eat with a fork: [red]&lt;br /&gt;
::[Cueball sits on a chair in front of a table with a jar of sauce on it. He is poking with a fork at a throw pillow covered in tomato sauce.]&lt;br /&gt;
::''Poke poke''&lt;br /&gt;
&lt;br /&gt;
Top-Mid Mid-Left&lt;br /&gt;
:Throw pillow, rest your head on: [green]&lt;br /&gt;
::[Cueball is looking at his phone and is lying on a couch. His head is resting on a throw pillow.]&lt;br /&gt;
&lt;br /&gt;
Top-Mid Mid-Right&lt;br /&gt;
:Throw pillow, puncture and slurp: [red]&lt;br /&gt;
::[Cueball is sucking on a straw that is inserted in a pillow.]&lt;br /&gt;
::Cueball: Aw man, this one is empty.&lt;br /&gt;
&lt;br /&gt;
Top-Mid Right&lt;br /&gt;
:Throw pillow, install in your phone: [red]&lt;br /&gt;
::[A phone is shown on a throw pillow that has the words “Home Sweet Home” partially obscured.]&lt;br /&gt;
&lt;br /&gt;
Bottom-Mid Left&lt;br /&gt;
:Capri Sun, eat with a fork: [red]&lt;br /&gt;
::[Cueball sits on a chair in front of a table with a jar of sauce on it. He has stabbed a Capri Sun on a plate and is now splattered with juice.]&lt;br /&gt;
&lt;br /&gt;
Bottom-Mid Mid-Left&lt;br /&gt;
:Capri Sun, rest your head on: [yellow]&lt;br /&gt;
::[Cueball is looking at his phone and is lying on a couch. His head is resting on a Capri Sun.]&lt;br /&gt;
::Cueball: Honestly kind of comfortable.&lt;br /&gt;
&lt;br /&gt;
Bottom-Mid Mid-Right&lt;br /&gt;
:Capri Sun, puncture and slurp: [green]&lt;br /&gt;
::[Cueball is drinking from a Capri Sun through a straw.]&lt;br /&gt;
::''Sluuurp''&lt;br /&gt;
&lt;br /&gt;
Bottom-Mid Right&lt;br /&gt;
:Capri Sun, Install in your phone: [red]&lt;br /&gt;
::[A phone is shown to be squishing a Capri Sun. Juice is trickling out.]&lt;br /&gt;
&lt;br /&gt;
Bottom Left&lt;br /&gt;
:Bulging lithium battery, eat with a fork: [red]&lt;br /&gt;
::[An explosion bordered by 4 skull and crossbones.]&lt;br /&gt;
&lt;br /&gt;
Bottom Mid-Left&lt;br /&gt;
:Bulging lithium battery, rest your head on: [red]&lt;br /&gt;
::[Cueball is looking at his phone and lying on his couch. His head is resting on a smoldering battery.]&lt;br /&gt;
::Cueball: This fire hazard is uncomfortable.&lt;br /&gt;
&lt;br /&gt;
Bottom Mid-Right&lt;br /&gt;
:Bulging lithium battery, puncture and slurp: [red]&lt;br /&gt;
::[Same as Bottom Left]&lt;br /&gt;
&lt;br /&gt;
Bottom Right&lt;br /&gt;
:Bulging lithium battery, install in your phone: [red]&lt;br /&gt;
::[A phone with a bulging back, presumably from the bulging lithium battery. The phone’s screen is cracked in the center.]&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
Surprisingly, the bottom right square was [https://www.explainxkcd.com/wiki/images/archive/4/4f/20241019165156%21ravioli_shaped_objects_2x.png initially marked in &amp;lt;span style=&amp;quot;background-color:#C5E6C3&amp;quot;&amp;gt;&amp;amp;nbsp;green&amp;amp;nbsp;&amp;lt;/span&amp;gt;] rather than &amp;lt;span style=&amp;quot;background-color:#E6C3C3;&amp;quot;&amp;gt;&amp;amp;nbsp;red&amp;amp;nbsp;&amp;lt;/span&amp;gt; (or &amp;lt;span style=&amp;quot;background-color:#FBF8CE;&amp;quot;&amp;gt;&amp;amp;nbsp;yellow&amp;amp;nbsp;&amp;lt;/span&amp;gt;) when it was first uploaded. This square may have been marked in green because, although putting a bulging battery in a mobile phone is not normal usage, it is a situation that can ''arise'' from normal usage when a &amp;quot;healthy&amp;quot; battery begins to fail. One other suggestion was that this was an [[:Category:xkcd Phones|xkcd phone]], and a dodgy battery is part of a 'feature', such as an 'integrated hand warmer' or 'dynamic expansion').&lt;br /&gt;
&lt;br /&gt;
More likely, it was just because Randall automatically went with the default association of &amp;quot;Row N is appopriate for Column N&amp;quot;, as is his [[:Category:Confusion matrices|usual design]] for these comics, to which he adds adjustments for other surprises, exceptions and outright jokes. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics with color]]&lt;br /&gt;
[[Category:Confusion matrices]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Food]]&lt;br /&gt;
[[Category:Phones]]&lt;br /&gt;
[[Category:Comics edited after their publication]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2983:_Monocaster&amp;diff=385365</id>
		<title>2983: Monocaster</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2983:_Monocaster&amp;diff=385365"/>
				<updated>2025-08-28T01:09:36Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Coasting downhill only works in one direction. Also there are electric skateboards but that's too detailed.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2983&lt;br /&gt;
| date      = September 9, 2024&lt;br /&gt;
| title     = Monocaster&lt;br /&gt;
| image     = monocaster_2x.png&lt;br /&gt;
| imagesize = 536x673px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = My competitors say the tiny single tiny caster is unsafe, unstable, and offers no advantages over traditional designs, to which I say: wow, why are you guys so mean? I thought we were friends!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
A caster, also spelled castor, is a small unpowered wheel, usually attached to a swiveling base. They are typically found on carts and office chairs to make them easy to move, and may be placed on heavy appliances to facilitate movement.&lt;br /&gt;
&lt;br /&gt;
Randall has proposed a variant of the skateboard with only one caster on the bottom, the titular &amp;quot;monocaster&amp;quot;, and devoted most of the comic to a {{w|Perceptual mapping|perceptual map}} showing the variety of wheeled vehicles. Market strategists and investors use such diagrams as a simple way of representing important differences between products or companies, but where a consumer might be more concerned with features like speed, cost, ease of use, or carrying capacity, this map focuses on the number of wheels (horizontal axis) and the diameter of those wheels (vertical axis).&lt;br /&gt;
&lt;br /&gt;
Each axis uses a logarithmic scale, which is convenient for making the map look more evenly filled but also visually exaggerates the size of the &amp;quot;key gap&amp;quot; that the monocaster is filling, which can be described as &amp;quot;vehicle with a single wheel smaller than 25 cm&amp;quot;. The nearest competitors appear to be a two-wheel skateboard sometimes called a {{w|caster board}} (wheel diameter under 8 cm) and a single-wheel self-balancing board resembling a {{w|Onewheel}} (diameter around 25 cm). The Onewheel is sometimes described as a {{w|monowheel}} (though these are traditionally larger like the &amp;quot;1920s monowheel&amp;quot; on the upper left). Randall appears to have combined these two names to create the monocaster. This gives up several of the competitors' features - the caster board's two wheels provide enough stability to propel the vehicle manually, while the Onewheel's single wheel is wide (assisting with sideways balance) and powered by a self-balancing mechanism.&lt;br /&gt;
&lt;br /&gt;
The result resembles a {{w|Balance board#Sphere-and-ring|&amp;quot;Sphere-and-ring&amp;quot; balance board}}, or other types, though these provide limited locomotion potential. The joke depends on the caster's obvious impracticality in this role: the hole in the market was open ''for a reason''. The obvious drawback to any single-wheeled vehicle is that it's difficult to balance: the rider has to avoid falling forward or backward, as well as to either side. This is a major reason why one-wheeled vehicles are uncommon to begin with, but those vehicles which do exist compensate by using relatively large wheels, driven either by human power or a motor, which creates rotational inertia and allows the rider to balance simply by leaning forward. &lt;br /&gt;
&lt;br /&gt;
A single, small, undriven wheel eliminates these balancing forces, meaning that the user would essentially need to balance on a single point. Also, most casters swivel, meaning that the balance point would move around under the rider's feet and make it even more difficult to balance. In addition, there's no apparent means of propulsion, which means the only way to move forward would be to either roll exclusively downhill, or use one foot to push off the ground. Either strategy would make retaining balance almost impossible. &lt;br /&gt;
&lt;br /&gt;
Multiple-wheeled vehicles greatly reduce the issue of balance simply by having multiple points of contact with the ground. The size of the wheels varies greatly; small, rigid wheels are generally suitable only for flat, smooth, rigid surfaces at relatively slow speeds, while vehicles expected to handle high speeds and varying road (and off-road) conditions will necessarily have larger wheels. &lt;br /&gt;
&lt;br /&gt;
The &amp;quot;monocaster&amp;quot; design offers no advantages and would be nearly unrideable, making it obvious why such a vehicle has never been seriously proposed. &lt;br /&gt;
&lt;br /&gt;
The title text extends the joke by listing the disadvantages mentioned above, but not providing a rebuttal. Instead it only attempts an emotional appeal by saying that the competitors are being mean and by commenting that Randall believed they were friends.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{| class=wikitable&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Vehicle&lt;br /&gt;
! scope=“col” | Number of wheels&lt;br /&gt;
! scope=“col” | Wheel Diameter&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Explanation&lt;br /&gt;
|-&lt;br /&gt;
| 1920s Monowheel || 1 || 3 meters ||  A monowheel is a vehicle in which the rider sits inside a single, large, hollow wheel. Versions have existed which were hand- or pedal-cranked, but the &amp;quot;1920s&amp;quot; version portrayed here is apparently motor-driven. These vehicles have generally been seen as novelties, as their stability and practicality issues limit their usefulness for actual transport. &lt;br /&gt;
|-&lt;br /&gt;
| Unicycle || 1 || 45 centimeters ||  Probably the best known single-wheeled form of transport, a unicycle consists of a single wheel, usually driven directly by pedals, with a seat mounted on top. Due to their difficulty, they are most commonly used as novelties and for comic performances, more than as practical transport. &lt;br /&gt;
|-&lt;br /&gt;
| OneWheel || 1 || 20 centimeters ||  A one-wheeled electric skateboard in which the user stands on both sides of a large, central wheel. The design self-balances by increasing the velocity as the user leans forward. This allows balancing and speed control to operate in a single motion. &lt;br /&gt;
|-&lt;br /&gt;
| Bicycle || 2 || 45 centimeters ||  A two-wheeled, pedal-driven vehicle. The relatively simple, inexpensive and efficient design of these vehicles makes them practical for transport in a variety of situations. As a result, they've long been among the most popular and widely-produced vehicles in the world.&lt;br /&gt;
|-&lt;br /&gt;
| Scooter || 2 || 8 centimeters (*) || A two-wheeled vehicle driven either by pushing with a foot or by an electric motor or fuel-powered engine. Scooters are ridden both for recreation and as a form of transportation in cities.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Roller shoe}} || 2 || 1 centimeter (*) || Shoes with small wheels built into the back end of the soles, putting them underneath the wearer's heels (which is what the brand-name  &amp;quot;{{w|Heelys}}&amp;quot; is derived from). They allow the user access to wheeled movement by pushing off the ground and balancing on the slightly protuding wheels. They are not as fast or comfortable as a dedicated wheeled vehicle, their rolling action is limited to sufficiently flat surfaces and they are not as easy as regular shoes to simply walk in. However, such shoes allow for some degree of both walking ''and'' rolling without having to carry a separate wheeled vehicle, or necessarily having the baseline difficulty of other 'fuller' versions of wearable skates.&lt;br /&gt;
|-&lt;br /&gt;
| Tricycle || 3 || 20 centimeters || Appears to be a {{w|Big Wheel (tricycle)|&amp;quot;Big Wheel&amp;quot; type}} child's toy, which actually have smaller 'trailing wheels', rather than either {{w|Tricycle#Upright|upright}} or {{w|Tricycle#Recumbent|recumbent}} style cycles for adults which ''usually'' match the wheel-sizes of their bicycle equivalents.&lt;br /&gt;
|-&lt;br /&gt;
| Scooter (three-wheeled) || 3 || 3 centimeters (*) ||  Very similar to two-wheeled scooters (see above), but using two wheels in the front instead of three. This increases stability but makes the scooter less maneuverable. The modern 'tail-wheel' variant as shown (usually with lean-and-steer front wheels, rather than handlebar twisting) has superseded the traditional tricycle layout (closely paired rear wheels, single steerable front wheel) that was the more usual three-wheel version of children's scooters in the decades before the millenium. The steering geometries and ride behaviours of each type experience significantly different advantages and flaws, both also handling differently from the typical two-wheel version.&lt;br /&gt;
|-&lt;br /&gt;
| Monster Truck || 4 || 2.5 meters || Monster trucks are vehicles equipped with (usually four, but sometimes more) outsize wheels. They are almost always driven as part of events where specifically trained drivers use them to perform dangerous stunts and crush smaller vehicles. Because of their size, the danger to other vehicles, often very poor mileage, and design choices that can be in violation of local laws and regulations regarding motorized vehicles, monster trucks are generally illegal to drive on public roads and have to be transported in dedicated trailers, making them poor choices for transport where one has to leave private property.&lt;br /&gt;
|-&lt;br /&gt;
| Car || 4 || 50 centimeters || Cars are motorized vehicles designed to move one or more people and an amount of goods around fast. While almost all cars have four wheels (discounting reserve wheels), there are a few that have more than four (certain limousines) or fewer (such as the Reliant Robin). Cars are more expensive than most options on the chart, but they also excel in speed, comfort, and flexibility.&lt;br /&gt;
|-&lt;br /&gt;
| ATV || 4 || 20 centimeters (*) || ATVs or &amp;quot;all-terrain vehicles&amp;quot; are unenclosed, handlebar-steered vehicles designed for off-road riding. They have four, large, low-pressure tires and a robust suspension system to accommodate rough terrain. They generally aren't designed to carry passengers, and have limited cargo capacity, which limits their usefulness for regular transport. They're generally used either for recreation or for transport in areas without well-maintained roads. &lt;br /&gt;
|-&lt;br /&gt;
| Skateboard || 4 || 2 centimeters (*) || Skateboards consist of a single board with four, small rigid wheels attached. They are generally propelled by pushing off the ground with one foot. They're commonly used for recreation and trick-riding, but can be used for short-distance transport where well-maintained and flat roads are available. &lt;br /&gt;
|-&lt;br /&gt;
| Three-Wheel Skates|| 6 || 4 centimeters (*) || Three-wheeled skates are a type of inline skate (shoes with a line of wheels affixed underneath the shoe) that differ from the more commonly used four wheeled inline skates by having three larger wheels. They are inexpensive and easy to maintain, but they require significant skill to use effectively and the user is reliant on smooth surfaces to skate around on. Another downside is that the wheels cannot be removed from the shoes, requiring the user to either carry an extra pair or have an extra pair at their destination.&lt;br /&gt;
|-&lt;br /&gt;
| Roller Skates|| 8 || 2 centimeters (*) || Roller skates are shoes with small wheels underneath them in a rectangular pattern. This makes roller skates much more stable than inline skates, allowing users to stand on them with more ease. Like inline skates they are cheap and low maintenance, but in order to move any significant distance without support they require a skilled user, smooth surfaces and the user needs backup shoes when taking them off (though there exist strap-on roller skates).&lt;br /&gt;
|-&lt;br /&gt;
| Semi-Trailer Truck (Articulated Lorry) || 10-18 || 1 meter || A semi-trailer truck is a motorized vehicle designed to pull trailers that can be easily decoupled from the truck itself. This allows the truck to switch trailers and move a different cargo without having to unload the trailer. The name in brackets that was used here (articulated lorry) is a name most commonly used in British English (or &amp;quot;artic&amp;quot;, for short), with articulation meaning that the truck can swivel at the point where the truck connects to the trailer. This allows for the truck to make much tighter turns than if it were one long vehicle, which is another advantage of this configuration, with typically more stability than with a {{w|Drawbar (haulage)|drawbar}} attachment. Trucks are designed to haul cargo for long distances, with the cargo in question being either too heavy or too large to carry with a smaller hopper, tanker, hard-/soft-sided container or flatbed placed entirely upon a single truck chassis. They are driven either by drivers employed by a transport company, or by self-employed individuals who haul cargo for a living. A specialized license is required to drive one, and because of their size (even without a trailer), trucks have more limitations on where they can drive and park than normal cars. Like cars, trucks are a source of leisure, but because of the higher cost to purchase, maintain and drive them, they are more often enjoyed for their aesthetics rather than actually driving them for leisure. There are events like races for trucks, and trucks can be given elaborate paint jobs to have them stand out.&lt;br /&gt;
The number of wheels is for both the {{w|Tractor unit#Axles|truck}} and a {{w|Semi-trailer#Types|trailer}}, which can each differ vastly between vehicle configurations.  The truck in the comic has five ''obvious'' axle-sets (thus at least ten actual wheels): a single pair of front wheels, two pairs of trailer-bearing rear wheels and two pairs of wheels on the trailer itself. The drawing of the truck actually spans the axis range of three wheels (unlikely to be true, and the minimum for a tractor-trailer would normally be six) all the way up to 16, so it's not entirely clear which number (≥10) Randall intends this one to portray. Most of the other illustrations are roughly centered over the relevant number of wheels, but applying this to the truck implies six wheels, which is clearly wrong as illustrated.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(*) It seems that Randall has made some mistakes in regards to the wheel sizes, especially in the centimeter range of the diagram. Most of the vehicles have bigger wheels and the number would suggest hat he meant inches instead of centimeters. Alternatively, he may have mistakenly recorded the wheels' radius instead of its diameter, as intended.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[A chart picturing many wheeled vehicles with a caption below the chart window. The vertical axis is labeled &amp;quot;Wheel Diameter&amp;quot;, logarithmic from 1cm to 5m. The horizontal axis is labeled &amp;quot;Number of wheels&amp;quot;, logarithmic from 1 to 16. From top left to bottom right, there is a person with a cap, seated in a circle, labeled &amp;quot;1920s monowheel&amp;quot;, a monster truck with a skull and a lightning bolt on the side, a lorry (truck), a Cueball on a unicycle moving back and forth, a Cueball on a bicycle, a car, a Cueball using a Onewheel, a Cueball on a child's &amp;quot;Big Wheel&amp;quot; tricycle, a Cueball on a quad, a Cueball standing on a scooter, a Cueball standing on a board with one small wheel bellow, circled and labeled with two question marks, a three-wheel scooter, a skater, a Cueball using three-wheel skates, labeled &amp;quot;three-wheel skates&amp;quot;, a Cueball crouching and using skates, and a small Cueball using shoes with wheels (Heelys) moving forward.]&lt;br /&gt;
:Caption:  My new monocaster board fills a key gap in the wheeled vehicle market.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Scatter plots]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Characters with hats]]&lt;br /&gt;
[[Category:Skateboard]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2983:_Monocaster&amp;diff=385364</id>
		<title>2983: Monocaster</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2983:_Monocaster&amp;diff=385364"/>
				<updated>2025-08-28T01:07:05Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ People know what cars are&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2983&lt;br /&gt;
| date      = September 9, 2024&lt;br /&gt;
| title     = Monocaster&lt;br /&gt;
| image     = monocaster_2x.png&lt;br /&gt;
| imagesize = 536x673px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = My competitors say the tiny single tiny caster is unsafe, unstable, and offers no advantages over traditional designs, to which I say: wow, why are you guys so mean? I thought we were friends!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
A caster, also spelled castor, is a small unpowered wheel, usually attached to a swiveling base. They are typically found on carts and office chairs to make them easy to move, and may be placed on heavy appliances to facilitate movement.&lt;br /&gt;
&lt;br /&gt;
Randall has proposed a variant of the skateboard with only one caster on the bottom, the titular &amp;quot;monocaster&amp;quot;, and devoted most of the comic to a {{w|Perceptual mapping|perceptual map}} showing the variety of wheeled vehicles. Market strategists and investors use such diagrams as a simple way of representing important differences between products or companies, but where a consumer might be more concerned with features like speed, cost, ease of use, or carrying capacity, this map focuses on the number of wheels (horizontal axis) and the diameter of those wheels (vertical axis).&lt;br /&gt;
&lt;br /&gt;
Each axis uses a logarithmic scale, which is convenient for making the map look more evenly filled but also visually exaggerates the size of the &amp;quot;key gap&amp;quot; that the monocaster is filling, which can be described as &amp;quot;vehicle with a single wheel smaller than 25 cm&amp;quot;. The nearest competitors appear to be a two-wheel skateboard sometimes called a {{w|caster board}} (wheel diameter under 8 cm) and a single-wheel self-balancing board resembling a {{w|Onewheel}} (diameter around 25 cm). The Onewheel is sometimes described as a {{w|monowheel}} (though these are traditionally larger like the &amp;quot;1920s monowheel&amp;quot; on the upper left). Randall appears to have combined these two names to create the monocaster. This gives up several of the competitors' features - the caster board's two wheels provide enough stability to propel the vehicle manually, while the Onewheel's single wheel is wide (assisting with sideways balance) and powered by a self-balancing mechanism.&lt;br /&gt;
&lt;br /&gt;
The result resembles a {{w|Balance board#Sphere-and-ring|&amp;quot;Sphere-and-ring&amp;quot; balance board}}, or other types, though these provide limited locomotion potential. The joke depends on the caster's obvious impracticality in this role: the hole in the market was open ''for a reason''. The obvious drawback to any single-wheeled vehicle is that it's difficult to balance: the rider has to avoid falling forward or backward, as well as to either side. This is a major reason why one-wheeled vehicles are uncommon to begin with, but those vehicles which do exist compensate by using relatively large wheels, driven either by human power or a motor, which creates rotational inertia and allows the rider to balance simply by leaning forward. &lt;br /&gt;
&lt;br /&gt;
A single, small, undriven wheel eliminates these balancing forces, meaning that the user would essentially need to balance on a single point. Also, most casters swivel, meaning that the balance point would move around under the rider's feet and make it even more difficult to balance. In addition, there's no apparent means of propulsion, which means the only way to move forward would be to either roll exclusively downhill, or use one foot to push off the ground. Either strategy would make retaining balance almost impossible. &lt;br /&gt;
&lt;br /&gt;
Multiple-wheeled vehicles greatly reduce the issue of balance simply by having multiple points of contact with the ground. The size of the wheels varies greatly; small, rigid wheels are generally suitable only for flat, smooth, rigid surfaces at relatively slow speeds, while vehicles expected to handle high speeds and varying road (and off-road) conditions will necessarily have larger wheels. &lt;br /&gt;
&lt;br /&gt;
The &amp;quot;monocaster&amp;quot; design offers no advantages and would be nearly unrideable, making it obvious why such a vehicle has never been seriously proposed. &lt;br /&gt;
&lt;br /&gt;
The title text extends the joke by listing the disadvantages mentioned above, but not providing a rebuttal. Instead it only attempts an emotional appeal by saying that the competitors are being mean and by commenting that Randall believed they were friends.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{| class=wikitable&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Vehicle&lt;br /&gt;
! scope=“col” | Number of wheels&lt;br /&gt;
! scope=“col” | Wheel Diameter&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Explanation&lt;br /&gt;
|-&lt;br /&gt;
| 1920s Monowheel || 1 || 3 meters ||  A monowheel is a vehicle in which the rider sits inside a single, large, hollow wheel. Versions have existed which were hand- or pedal-cranked, but the &amp;quot;1920s&amp;quot; version portrayed here is apparently motor-driven. These vehicles have generally been seen as novelties, as their stability and practicality issues limit their usefulness for actual transport. &lt;br /&gt;
|-&lt;br /&gt;
| Unicycle || 1 || 45 centimeters ||  Probably the best known single-wheeled form of transport, a unicycle consists of a single wheel, usually driven directly by pedals, with a seat mounted on top. Due to their difficulty, they are most commonly used as novelties and for comic performances, more than as practical transport. &lt;br /&gt;
|-&lt;br /&gt;
| OneWheel || 1 || 20 centimeters ||  A one-wheeled electric skateboard in which the user stands on both sides of a large, central wheel. The design self-balances by increasing the velocity as the user leans forward. This allows balancing and speed control to operate in a single motion. &lt;br /&gt;
|-&lt;br /&gt;
| Bicycle || 2 || 45 centimeters ||  A two-wheeled, pedal-driven vehicle. The relatively simple, inexpensive and efficient design of these vehicles makes them practical for transport in a variety of situations. As a result, they've long been among the most popular and widely-produced vehicles in the world.&lt;br /&gt;
|-&lt;br /&gt;
| Scooter || 2 || 8 centimeters (*) || A two-wheeled vehicle driven either by pushing with a foot or by an electric motor or fuel-powered engine. Scooters are ridden both for recreation and as a form of transportation in cities.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Roller shoe}} || 2 || 1 centimeter (*) || Shoes with small wheels built into the back end of the soles, putting them underneath the wearer's heels (which is what the brand-name  &amp;quot;{{w|Heelys}}&amp;quot; is derived from). They allow the user access to wheeled movement by pushing off the ground and balancing on the slightly protuding wheels. They are not as fast or comfortable as a dedicated wheeled vehicle, their rolling action is limited to sufficiently flat surfaces and they are not as easy as regular shoes to simply walk in. However, such shoes allow for some degree of both walking ''and'' rolling without having to carry a separate wheeled vehicle, or necessarily having the baseline difficulty of other 'fuller' versions of wearable skates.&lt;br /&gt;
|-&lt;br /&gt;
| Tricycle || 3 || 20 centimeters || Appears to be a {{w|Big Wheel (tricycle)|&amp;quot;Big Wheel&amp;quot; type}} child's toy, which actually have smaller 'trailing wheels', rather than either {{w|Tricycle#Upright|upright}} or {{w|Tricycle#Recumbent|recumbent}} style cycles for adults which ''usually'' match the wheel-sizes of their bicycle equivalents.&lt;br /&gt;
|-&lt;br /&gt;
| Scooter (three-wheeled) || 3 || 3 centimeters (*) ||  Very similar to two-wheeled scooters (see above), but using two wheels in the front instead of three. This increases stability but makes the scooter less maneuverable. The modern 'tail-wheel' variant as shown (usually with lean-and-steer front wheels, rather than handlebar twisting) has superseded the traditional tricycle layout (closely paired rear wheels, single steerable front wheel) that was the more usual three-wheel version of children's scooters in the decades before the millenium. The steering geometries and ride behaviours of each type experience significantly different advantages and flaws, both also handling differently from the typical two-wheel version.&lt;br /&gt;
|-&lt;br /&gt;
| Monster Truck || 4 || 2.5 meters || Monster trucks are vehicles equipped with (usually four, but sometimes more) outsize wheels. They are almost always driven as part of events where specifically trained drivers use them to perform dangerous stunts and crush smaller vehicles. Because of their size, the danger to other vehicles, often very poor mileage, and design choices that can be in violation of local laws and regulations regarding motorized vehicles, monster trucks are generally illegal to drive on public roads and have to be transported in dedicated trailers, making them poor choices for transport where one has to leave private property.&lt;br /&gt;
|-&lt;br /&gt;
| Car || 4 || 50 centimeters || Cars are motorized vehicles designed to move one or more people and an amount of goods around fast. While almost all cars have four wheels (discounting reserve wheels), there are a few that have more than four (certain limousines) or fewer (such as the Reliant Robin). Cars are more expensive than most options on the chart, but they also excel in speed, comfort, and flexibility.&lt;br /&gt;
|-&lt;br /&gt;
| ATV || 4 || 20 centimeters (*) || ATVs or &amp;quot;all-terrain vehicles&amp;quot; are unenclosed, handlebar-steered vehicles designed for off-road riding. They have four, large, low-pressure tires and a robust suspension system to accommodate rough terrain. They generally aren't designed to carry passengers, and have limited cargo capacity, which limits their usefulness for regular transport. They're generally used either for recreation or for transport in areas without well-maintained roads. &lt;br /&gt;
|-&lt;br /&gt;
| Skateboard || 4 || 2 centimeters (*) || Skateboards consist of a single board with four, small rigid wheels attached. They are propelled by pushing off the ground with one foot (or by coasting downhill). They're commonly used for recreation and trick-riding, but can be used for short-distance transport where well-maintained and flat roads are available. &lt;br /&gt;
|-&lt;br /&gt;
| Three-Wheel Skates|| 6 || 4 centimeters (*) || Three-wheeled skates are a type of inline skate (shoes with a line of wheels affixed underneath the shoe) that differ from the more commonly used four wheeled inline skates by having three larger wheels. They are inexpensive and easy to maintain, but they require significant skill to use effectively and the user is reliant on smooth surfaces to skate around on. Another downside is that the wheels cannot be removed from the shoes, requiring the user to either carry an extra pair or have an extra pair at their destination.&lt;br /&gt;
|-&lt;br /&gt;
| Roller Skates|| 8 || 2 centimeters (*) || Roller skates are shoes with small wheels underneath them in a rectangular pattern. This makes roller skates much more stable than inline skates, allowing users to stand on them with more ease. Like inline skates they are cheap and low maintenance, but in order to move any significant distance without support they require a skilled user, smooth surfaces and the user needs backup shoes when taking them off (though there exist strap-on roller skates).&lt;br /&gt;
|-&lt;br /&gt;
| Semi-Trailer Truck (Articulated Lorry) || 10-18 || 1 meter || A semi-trailer truck is a motorized vehicle designed to pull trailers that can be easily decoupled from the truck itself. This allows the truck to switch trailers and move a different cargo without having to unload the trailer. The name in brackets that was used here (articulated lorry) is a name most commonly used in British English (or &amp;quot;artic&amp;quot;, for short), with articulation meaning that the truck can swivel at the point where the truck connects to the trailer. This allows for the truck to make much tighter turns than if it were one long vehicle, which is another advantage of this configuration, with typically more stability than with a {{w|Drawbar (haulage)|drawbar}} attachment. Trucks are designed to haul cargo for long distances, with the cargo in question being either too heavy or too large to carry with a smaller hopper, tanker, hard-/soft-sided container or flatbed placed entirely upon a single truck chassis. They are driven either by drivers employed by a transport company, or by self-employed individuals who haul cargo for a living. A specialized license is required to drive one, and because of their size (even without a trailer), trucks have more limitations on where they can drive and park than normal cars. Like cars, trucks are a source of leisure, but because of the higher cost to purchase, maintain and drive them, they are more often enjoyed for their aesthetics rather than actually driving them for leisure. There are events like races for trucks, and trucks can be given elaborate paint jobs to have them stand out.&lt;br /&gt;
The number of wheels is for both the {{w|Tractor unit#Axles|truck}} and a {{w|Semi-trailer#Types|trailer}}, which can each differ vastly between vehicle configurations.  The truck in the comic has five ''obvious'' axle-sets (thus at least ten actual wheels): a single pair of front wheels, two pairs of trailer-bearing rear wheels and two pairs of wheels on the trailer itself. The drawing of the truck actually spans the axis range of three wheels (unlikely to be true, and the minimum for a tractor-trailer would normally be six) all the way up to 16, so it's not entirely clear which number (≥10) Randall intends this one to portray. Most of the other illustrations are roughly centered over the relevant number of wheels, but applying this to the truck implies six wheels, which is clearly wrong as illustrated.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(*) It seems that Randall has made some mistakes in regards to the wheel sizes, especially in the centimeter range of the diagram. Most of the vehicles have bigger wheels and the number would suggest hat he meant inches instead of centimeters. Alternatively, he may have mistakenly recorded the wheels' radius instead of its diameter, as intended.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[A chart picturing many wheeled vehicles with a caption below the chart window. The vertical axis is labeled &amp;quot;Wheel Diameter&amp;quot;, logarithmic from 1cm to 5m. The horizontal axis is labeled &amp;quot;Number of wheels&amp;quot;, logarithmic from 1 to 16. From top left to bottom right, there is a person with a cap, seated in a circle, labeled &amp;quot;1920s monowheel&amp;quot;, a monster truck with a skull and a lightning bolt on the side, a lorry (truck), a Cueball on a unicycle moving back and forth, a Cueball on a bicycle, a car, a Cueball using a Onewheel, a Cueball on a child's &amp;quot;Big Wheel&amp;quot; tricycle, a Cueball on a quad, a Cueball standing on a scooter, a Cueball standing on a board with one small wheel bellow, circled and labeled with two question marks, a three-wheel scooter, a skater, a Cueball using three-wheel skates, labeled &amp;quot;three-wheel skates&amp;quot;, a Cueball crouching and using skates, and a small Cueball using shoes with wheels (Heelys) moving forward.]&lt;br /&gt;
:Caption:  My new monocaster board fills a key gap in the wheeled vehicle market.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Scatter plots]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Characters with hats]]&lt;br /&gt;
[[Category:Skateboard]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2981:_Slingshots&amp;diff=384678</id>
		<title>2981: Slingshots</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2981:_Slingshots&amp;diff=384678"/>
				<updated>2025-08-21T01:43:30Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Remove conjecture&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2981&lt;br /&gt;
| date      = September 4, 2024&lt;br /&gt;
| title     = Slingshots&lt;br /&gt;
| image     = slingshots_2x.png&lt;br /&gt;
| imagesize = 397x420px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = In my reboot, Dennis the Menace was just trying to send Mr. Wilson a nice comet, but accidentally wiped out his dinosaur garden.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The {{w|Slingshot|slingshot}} (in this comic, styled &amp;quot;Regular Slingshot&amp;quot;) is primarily refering to the hand-held device used for accelerating small projectiles, such as stones or steel balls. The &amp;quot;forked stick and elastic&amp;quot; contraption (known as a catapult, in the UK) acts by a pull-back-and-release action, and has become associated with youthful recklessness (or an outright tendency towards vandalism), but is also the basis of manufactured sport/hunting devices as well as all of the more organic child-made contraptions.&lt;br /&gt;
&lt;br /&gt;
The '''gravitational''' slingshot, or {{w|gravity assist}}, is not a device but a term used to describe how gravity can significantly alter the path of an object in space, such as a spacecraft or an asteroid.  A gravitational slingshot generally involves a small object passing by a much more massive object, which turns the smaller object's trajectory, trading momentum and kinetic energy between the two bodies.  The smaller object can undergo a large change in velocity, &amp;quot;paid for&amp;quot; (in the sense of conserving the momentum and energy of the system) with a negligible change in the velocity of the more massive body.&lt;br /&gt;
&lt;br /&gt;
This comic humorously compares the two, in tabular format.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
!&lt;br /&gt;
! Regular slingshot&lt;br /&gt;
! Gravitational slingshot&lt;br /&gt;
|-&lt;br /&gt;
! Used for hunting&lt;br /&gt;
| ✓&lt;br /&gt;
| X&lt;br /&gt;
|-&lt;br /&gt;
! Used for sport shooting&lt;br /&gt;
| ✓&lt;br /&gt;
| X&lt;br /&gt;
|-&lt;br /&gt;
! Used for spacecraft propulsion&lt;br /&gt;
| X&lt;br /&gt;
| ✓&lt;br /&gt;
|-&lt;br /&gt;
! Large online enthusiast community&lt;br /&gt;
| ✓&lt;br /&gt;
| ✓&lt;br /&gt;
|-&lt;br /&gt;
! May have caused dinosaur extinction&lt;br /&gt;
| Probably not&lt;br /&gt;
| Maybe&lt;br /&gt;
|-&lt;br /&gt;
! Used by Dennis the Menace to terrorize Mr. Wilson&lt;br /&gt;
| ✓&lt;br /&gt;
| Not yet, but I'm pitching a reboot&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
The first four categories accurately reflect reality. As a hunting tool (and as an offensive weapon), recent designs have been claimed to propel a projectile with [https://www.uslawshield.com/tactical-slingshots-mere-toy/ more force than .22 and .38 caliber pistols]. Consequently, several communities have prohibited the possession of such slingshots, which may be called &amp;quot;wrist rockets&amp;quot;. The state of Massachusetts, where cartoonist Randall resides, is one of those communities. Gravitational slingshots would be inefficient and cause overkill for such purposes, as well as being difficult to achieve sufficient accuracy and specificity.&lt;br /&gt;
&lt;br /&gt;
Conversely, gravitational slingshots are a useful way to change the velocity of a spacecraft without having to use large amounts of fuel, whereas building a regular slingshot capable of propelling a spacecraft is likely to be impractical - not to mention the destructive/fatal consequences, to vehicle and cargo, of near-instantaneous acceleration to useful speeds, such as the Mach 33 required for an object at sea level to escape Earth's gravity, especially when there's an atmosphere present.&lt;br /&gt;
&lt;br /&gt;
Both types of slingshot excite interest among many people who may form online communities to discuss them, but for quite different reasons, and the size of overlap between these communities is uncertain.&lt;br /&gt;
&lt;br /&gt;
The fifth category ventures into the absurd, at least with respect to &amp;quot;regular&amp;quot; slingshots, which did not exist (as far as we know) at the time of the {{w|Cretaceous–Paleogene_extinction_event|Cretaceous-Tertiary extinction event}}. (Humans, which invented them, did not exist at that time. Use of slingshots would therefore require some other contemporaneous intelligent species to have invented them, or some kind of {{w|A_Sound_of_Thunder|time}} {{w|A_Gun_for_Dinosaur|travel}}.) However, it is likely that the event resulted from the impact of a space-rock that was perturbed into an Earth-crossing orbit by a planet such as Jupiter, given at least a minor gravitational slingshot on its way to eventually crashing into the Earth.&lt;br /&gt;
&lt;br /&gt;
The sixth category references the long-running comic and cartoon character {{w|Dennis_the_Menace_(U.S._comics)|Dennis the Menace (USA)}}, in which the titular character unintentionally harasses neighbor Mr. Wilson with (regular) slingshots and other devices and behaviors. In Randall's projected reboot of the franchise, which is elaborated on in the title text, Dennis trades his regular slingshot for a gravitational slingshot. By miscalibrating his ammunition, or the force of his slingshot, he turns a demonstration (&amp;quot;a nice comet&amp;quot;) into a destructive event (the loss of Wilson's dinosaur garden). The reference is to the relative size and velocity of the space objects responsible for, respectively, comets and &amp;quot;meteors&amp;quot; &amp;lt;em&amp;gt;versus&amp;lt;/em&amp;gt; asteroid impacts.&lt;br /&gt;
&lt;br /&gt;
This comic may have been inspired by the recently released movie {{w|Slingshot_(2024_film)|Slingshot}}.&lt;br /&gt;
&lt;br /&gt;
This is very similar to [[2844: Black Holes vs Regular Holes]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A table grid with two columns and six rows.]&lt;br /&gt;
:[Two column labels placed above the respective columns, six row labels to the left of the respective rows.  Each table cell contains a tick for &amp;quot;Yes&amp;quot;, a cross for &amp;quot;No&amp;quot;, or a note.]&lt;br /&gt;
&lt;br /&gt;
::[Column 1:] Regular slingshot&lt;br /&gt;
::[Column 2:] Gravitational slingshot&lt;br /&gt;
&lt;br /&gt;
:[Row 1:] Used for hunting&lt;br /&gt;
::[Tick]&lt;br /&gt;
::[Cross]&lt;br /&gt;
:[Row 2:] Used for sport shooting&lt;br /&gt;
::[Tick]&lt;br /&gt;
::[Cross]&lt;br /&gt;
:[Row 3:] Used for spacecraft propulsion&lt;br /&gt;
::[Cross]&lt;br /&gt;
::[Tick]&lt;br /&gt;
:[Row 4:] Large online enthusiast community&lt;br /&gt;
::[Tick]&lt;br /&gt;
::[Tick]&lt;br /&gt;
:[Row 5:] May have caused dinosaur extinction&lt;br /&gt;
::Probably not&lt;br /&gt;
::Maybe&lt;br /&gt;
:[Row 6:] Used by Dennis the Menace to terrorize Mr. Wilson&lt;br /&gt;
::[Tick]&lt;br /&gt;
::Not yet, but I'm pitching a reboot&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
An other form of {{w|Sling (weapon)|stone flinging hand-held weapon}} had existed since ancient times, and has been used for personal defense and for hunting game such as squirrels, birds and {{w|Goliath|Philistines}} through skillful use of its mechanical advantage and rotation. It is essentially a mimimalist hand-held form of {{w|trebuchet}} (using the the thrower's arm as a much more versatile main beam, taken back to mechanical extremes in some proposed {{w|SpinLaunch|kinetic energy space-launch}} ideas), compared to the version that is more of a cut-back {{w|crossbow}}-like 'catapult' (as well as partially duplicating the mechanics of a {{w|ballista}}), but had necessitated the easy availability of an elastic cord before it could become the common form of slingshot/catapult that then became the signature toy/tool/weapon of both Dennis Mitchell (the American version) and his British namesake (see below).&lt;br /&gt;
&lt;br /&gt;
The 'gravitational slingshot' can be perhaps more likened to the ancient 'stone slinger', by dint of using a radial redirection to build up energy for the object being slung and released, and is also very dependent upon the exact timing of the 'release' (insofar as one can ever be released from any gravitational field). Although as it also makes key use of exchanging potential and kinetic energies there are also elements by which the elasticated thrower does also share some conceptual similarity to the gravitational assist. It is not recorded&amp;lt;!-- anywhere that I've looked! --&amp;gt; which particular form of slingshot became the primary inspiration for this particular spacecraft manoeuvre terminology.&lt;br /&gt;
&lt;br /&gt;
The &amp;quot;Dennis the Menace&amp;quot; that the [[Randall]] refers to, familiar to those in the US, is not to be confused with the ''other'' long-running comic and cartoon character from the UK, also called {{w|Dennis the Menace and Gnasher|Dennis the Menace}}, who has a surprisingly similar premise and identical date of creation but is more willfully disruptive and capable of far more 'cartoonish' behaviour (which might well include planetary-scale fork-stick slingshots/catapults). {{w|Mark Hamill}} is a fan of the British character (possibly from his time filming the original Star Wars films in the local studios), and also has some experience with (fictional) disruption of planets by {{w|Death Star|constructed weapons}}.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category: Charts]]&lt;br /&gt;
[[Category: Space]]&lt;br /&gt;
[[Category: Dinosaurs]]&lt;br /&gt;
[[Category: Fiction]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2980:_Lava_Lakes&amp;diff=384210</id>
		<title>2980: Lava Lakes</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2980:_Lava_Lakes&amp;diff=384210"/>
				<updated>2025-08-15T03:06:01Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ DRY&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2980&lt;br /&gt;
| date      = September 2, 2024&lt;br /&gt;
| title     = Lava Lakes&lt;br /&gt;
| image     = lava_lakes_2x.png&lt;br /&gt;
| imagesize = 709x272px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Hey, golf balls float on lava, so this should make recovering them from the hazards easier.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic shows [[Megan]] talking to [[Black Hat]], mentioning the common myth that there's a lava lake in the crater of every volcano. She points out that there are really only around five lava-filled volcano craters in the world right now. &lt;br /&gt;
&lt;br /&gt;
In true Black Hat fashion, he responds to this by creating a new lava lake on a nearby golf course. Given that Megan was still waiting when Black Hat came back, the attention span of most people is shorter than the time it takes lava lakes to form and that sane people do not build golf courses directly over active volcanoes,{{acn}} Black Hat would've needed to dig at least 8 kilometers of earth within a very short timespan. Since this action was prompted by Megan's remark, Black Hat likely did not build or move anything capable of making a lava lake to the golf course beforehand.&lt;br /&gt;
&lt;br /&gt;
The title text mentions that golf balls will float on lava, making recovering them from {{w|Hazard (golf)|hazards}} easier (man-made obstacles such as sand or water, with sinking in the latter being the more obvious hazard to change). The density of a normal golf ball is about 1.13 grams per cubic centimeter, which is significantly less than the 2.4 ~ 2.9 grams per cubic centimeter of lava. It ''would'' be very easy to retrieve golf balls from lava because of this, if it were not for the fact that lava is hot.{{cn}} Lava is around 800 °C, while most golf balls are made of [https://thegolfmine.com/are-golf-balls-flammable/ materials that ignite] at 400-500 °C, and it could also be somewhat awkward for any hand that goes to retrieve it. Not to mention that the interaction of lava with solids at {{w|Standard temperature and pressure|STP}} [https://www.usgs.gov/media/videos/rockfall-halemaumau tends to be violent]. It would presumably also be extremely difficult to wipe lava from the surface of a golf ball, both while the lava is fresh and then changing to different challenges as it cools. So even if you did retrieve the ball from the lava lake, you might not be able to use it again.&lt;br /&gt;
&lt;br /&gt;
These may be the 5 volcano lakes that the comic references ({{w|Lava lake#List of volcanoes having displayed past or present lava lake activity|source}}):&lt;br /&gt;
* {{w|Erta Ale}} in Ethiopia&lt;br /&gt;
* {{w|Mount Erebus}} on Ross Island, Antarctica&lt;br /&gt;
* Kīlauea {{w|Halemaʻumaʻu}} on Hawaiʻi (Big Island) [no active lake in September 2024]&lt;br /&gt;
* {{w|Mount Nyiragongo|Nyiragongo}} in the Democratic Republic of the Congo&lt;br /&gt;
* {{w|Mount Michael}} on Saunders Island, South Sandwich Islands&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Megan and Black Hat are talking, with Megan holding up one hand towards Black Hat]&lt;br /&gt;
:Megan: People think volcano craters are full of lava, but that’s rare. There are only five or so lava lakes in the world right now.&lt;br /&gt;
&lt;br /&gt;
:[Black Hat puts one hand up to his chin]&lt;br /&gt;
:Black Hat: Interesting.&lt;br /&gt;
&lt;br /&gt;
:[Black Hat walks out of frame off to the right]&lt;br /&gt;
&lt;br /&gt;
:[Megan stands while three distinct off-panel sound effects come from the right]&lt;br /&gt;
:&amp;lt;i&amp;gt;Rumble&amp;lt;/i&amp;gt;&lt;br /&gt;
:&amp;lt;small&amp;gt;Crash&amp;lt;/small&amp;gt;&lt;br /&gt;
:&amp;lt;strong&amp;gt;BOOOOM&amp;lt;/strong&amp;gt;&lt;br /&gt;
&lt;br /&gt;
:[Black Hat walks back into frame]&lt;br /&gt;
:Megan: What did you&amp;amp;mdash;&lt;br /&gt;
:Black Hat: There are six now.&lt;br /&gt;
:Off-panel voice to the right: &amp;lt;i&amp;gt;Why is the golf course erupting!?&amp;lt;/i&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Volcanoes]]&lt;br /&gt;
[[Category:Sport]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2976:_Time_Traveler_Causes_of_Death&amp;diff=383238</id>
		<title>2976: Time Traveler Causes of Death</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2976:_Time_Traveler_Causes_of_Death&amp;diff=383238"/>
				<updated>2025-08-04T21:14:33Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Table of death causes */ Not sure what &amp;quot;{{fact}}&amp;quot; was meant to do but it isn't doing it&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2976&lt;br /&gt;
| date      = August 23, 2024&lt;br /&gt;
| title     = Time Traveler Causes of Death&lt;br /&gt;
| image     = time_traveler_causes_of_death_2x.png&lt;br /&gt;
| imagesize = 332x677px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Many a hungry time traveler has Googled 'trilobites shellfish allergy' only to find their carrier had no coverage in the Ordovician.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Time travel is a common sci-fi/fantasy plot, in which someone from one era is sent forward or backward in time to another era. Normally, the travel itself goes off without a hitch, with the usual threats to the time traveler being what happens at some point ''after'' they arrive at their destination. More rarely, a time traveler might immediately encounter some hazard because of where their time travel method has deposited them.&lt;br /&gt;
&lt;br /&gt;
This comic takes the latter situation to the extreme, observing different causes of death for potential time travelers through the ages based on the geologic evolution of Earth from its formation over 4 billion years ago to the present; see detailed explanation in the [[#Table of death causes|table]]. The chart shows only the most likely cause for a given period of time, although the title text reveals that there may always be others possible.&lt;br /&gt;
&lt;br /&gt;
The title text suggests that an alternative fate within the &amp;quot;eaten by fish&amp;quot; era is the exact opposite - eating something hazardous. A time traveler, having fortuitously avoided the primary &amp;quot;Starving&amp;quot; fate of the prior era, may try eating a {{w|trilobite}}, a kind of shellfish. They may find that either some existing allergy is triggered by this prehistoric shellfish, or that the creatures of that age spark a new allergic condition that (as a modern human) they were not previously aware they could develop a reaction against. A person with a known allergy might check for the possible presence of a problematic ingredient in a potential snack by referencing online resources - a facility that is not available here, with the smartphone stuck in the past, long before any network is available to connect to. Alternatively, suspecting the food they've eaten has not agreed with them, they could find they are denied easy access to the best online information on how to properly treat their symptoms.&lt;br /&gt;
&lt;br /&gt;
===Table of death causes===&lt;br /&gt;
{| class=wikitable&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Cause of death&lt;br /&gt;
! Scope=“col” | Time frame&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Explanation&lt;br /&gt;
|-&lt;br /&gt;
| Lava || Earth Forms || During the formation of the Earth, the surface was a hellish landscape of lava.&lt;br /&gt;
|-&lt;br /&gt;
| Asphyxiation || 4 billion years ago || Before {{w|cyanobacteria}} started photosynthesizing and producing oxygen, the atmosphere of the Earth was mainly composed of hydrogen sulfide, methane and carbon dioxide, without the significant amount of oxygen that humans need to breathe.&lt;br /&gt;
|-&lt;br /&gt;
| Meteors || 3.9 billion years ago || During the hypothesized {{w|Late Heavy Bombardment}}, the Earth's surface was subjected to a large number of asteroid and comet impacts, destroying much of Earth's early crust. According to the table, the heavy bombardment was so severe that this was the most likely cause of death during a period when there was still no oxygen. Even when these meteors came at an alarming rate, however, the chance of being hit by one of these before asphyxiation due to an atmosphere without any oxygen seems remote. Of course, if the time machine had some oxygen along with it and the reason people died from lack of oxygen was that they stayed there for a long time, the chance of death-by-meteor would increase.&lt;br /&gt;
|-&lt;br /&gt;
| Asphyxiation || 3 billion years ago || See above. &lt;br /&gt;
|-&lt;br /&gt;
| Slightly slower asphyxiation || 2 billion years ago|| Cyanobacteria had started photosynthesizing, leading to the {{w|Great Oxygenation Event|Oxygen Catastrophe}}, but oxygen levels still weren’t high enough to support human life. &lt;br /&gt;
|-&lt;br /&gt;
| Freezing || Less than 1 billion years ago || During the {{w|Cryogenian|Cryogenian Ice Age}}, the Earth’s temperature fell to -12°C, much too cold to support human life if not properly prepared.&lt;br /&gt;
|-&lt;br /&gt;
| Starving || 600 to 485 million years ago || During this time, the temperature was mild and comfortable; however, the only life during this time was single-cell organisms and – especially later – tiny multicellular organisms, which are very difficult to gather and may not be sufficiently healthy and nutritious. (Imagine surviving only on bacteria today.)&lt;br /&gt;
|-&lt;br /&gt;
| Eaten by fish || 485 to 250 million years ago || During the {{w|Great Ordovician Biodiversification Event}} and subsequent times, fish {{w|Evolution of fish|evolved jaws}} and some species grew quite large.&lt;br /&gt;
|-&lt;br /&gt;
| Trampled || 252 to 66 million years ago || The {{w|Mesozoic Era}} is often called the “Age of Dinosaurs.&amp;quot; The majority of these dinosaurs were herbivorous and many were quite large, so being eaten would be less likely than being trampled on.&lt;br /&gt;
Note that this is an almost exact inversion of what happens in the classic story ''{{w|A Sound of Thunder}}'', in which the traveler survives personally unscathed but tramples an 'age of dinosaur' creature (to unfortunate effect).&lt;br /&gt;
|-&lt;br /&gt;
| Eaten by mammals || 66 million years ago to sometime before now || The {{w|Cenozoic Era}}, which began 66 million years ago, is often referred to as the &amp;quot;Age of Mammals&amp;quot;. Though some eras have more likely causes of death (such as wars, but that would basically be during the &amp;quot;Now&amp;quot; period in the table), overall being eaten by large mammals is probably the biggest risk.&lt;br /&gt;
|-&lt;br /&gt;
| Time machine door gets stuck || Roughly present day || As the timeline approaches the present day, the conditions on Earth become more than suitable enough for a human time traveler to survive extended periods of time &amp;amp;mdash; as evidenced by the fact hominids and early humans begin to emerge. As such, when it comes to hazards that can kill the time traveler before they can do anything at their destination, there's nothing else more likely to kill them than a problem with the time machine itself; the example given is being unable to open the door of the time machine (whether because the door is broken or the time machine is parked right up against an obstacle) and dying of thirst or starvation (or, if the time machine is air-tight, asphyxiating). This assumes the time machine is also a {{w|Faraday Cage}} (that can block the signal of an emergency call) or the traveler doesn't take their phone with them, although the title text indicates they will. Or that the &amp;quot;Now&amp;quot; period extends back before cell phones and compatible cellular networks, maybe covering the entire period of human civilization. But mostly it is a punchline comparing severely dangerous situations to severely harmless ones.&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A chart with a time line going from top to bottom is shown. Starting when the Earth forms and ending at present day. The chart is a rectangle divided into 11 segments. Each segment has a label written inside it, except the bottom which is too thin, thus the label is to the right of the chart with an arrow pointing to the segment. The left side of the chart is a timeline with ticks and labels for the time period. At the top an arrow points to the top left corner of the chart with a label indicating the starting time. And then there are 5 ticks, the first four equidistant and then only half the distance for the last tick. A final label is at the bottom of the chart. Above the chart there is a heading:]&lt;br /&gt;
:Top causes of death for time travelers by geologic era:&lt;br /&gt;
&lt;br /&gt;
:[Text in the table from the top, with the time to the left differentiated from the labels which are indented:]&lt;br /&gt;
:Earth forms&lt;br /&gt;
::Lava&lt;br /&gt;
::Asphyxiation&lt;br /&gt;
:4 billion years ago&lt;br /&gt;
::Meteors&lt;br /&gt;
::Asphyxiation&lt;br /&gt;
:3 billion years ago&lt;br /&gt;
:2 billion years ago&lt;br /&gt;
::Slightly slower asphyxiation&lt;br /&gt;
:1 billion years ago&lt;br /&gt;
::Freezing&lt;br /&gt;
::Starving&lt;br /&gt;
:500 million years ago&lt;br /&gt;
::Eaten by fish&lt;br /&gt;
::Trampled&lt;br /&gt;
::Eaten by mammals&lt;br /&gt;
:Now&lt;br /&gt;
::Time machine door gets stuck&lt;br /&gt;
&lt;br /&gt;
== Trivia ==&lt;br /&gt;
&lt;br /&gt;
Modern adults can actually have great difficulty surviving without modern conveniences, and may die of freezing if released into an earlier era than they are familiar with. Children of certain ages may thrive well, neither freezing or being eaten by mammals, after a period of adaptation.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Timelines]]&lt;br /&gt;
[[Category:Time travel]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Animals]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2976:_Time_Traveler_Causes_of_Death&amp;diff=383236</id>
		<title>2976: Time Traveler Causes of Death</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2976:_Time_Traveler_Causes_of_Death&amp;diff=383236"/>
				<updated>2025-08-04T21:10:31Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ There were other searches before Google. But it doesn't make the explanation any better anyway.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2976&lt;br /&gt;
| date      = August 23, 2024&lt;br /&gt;
| title     = Time Traveler Causes of Death&lt;br /&gt;
| image     = time_traveler_causes_of_death_2x.png&lt;br /&gt;
| imagesize = 332x677px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Many a hungry time traveler has Googled 'trilobites shellfish allergy' only to find their carrier had no coverage in the Ordovician.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Time travel is a common sci-fi/fantasy plot, in which someone from one era is sent forward or backward in time to another era. Normally, the travel itself goes off without a hitch, with the usual threats to the time traveler being what happens at some point ''after'' they arrive at their destination. More rarely, a time traveler might immediately encounter some hazard because of where their time travel method has deposited them.&lt;br /&gt;
&lt;br /&gt;
This comic takes the latter situation to the extreme, observing different causes of death for potential time travelers through the ages based on the geologic evolution of Earth from its formation over 4 billion years ago to the present; see detailed explanation in the [[#Table of death causes|table]]. The chart shows only the most likely cause for a given period of time, although the title text reveals that there may always be others possible.&lt;br /&gt;
&lt;br /&gt;
The title text suggests that an alternative fate within the &amp;quot;eaten by fish&amp;quot; era is the exact opposite - eating something hazardous. A time traveler, having fortuitously avoided the primary &amp;quot;Starving&amp;quot; fate of the prior era, may try eating a {{w|trilobite}}, a kind of shellfish. They may find that either some existing allergy is triggered by this prehistoric shellfish, or that the creatures of that age spark a new allergic condition that (as a modern human) they were not previously aware they could develop a reaction against. A person with a known allergy might check for the possible presence of a problematic ingredient in a potential snack by referencing online resources - a facility that is not available here, with the smartphone stuck in the past, long before any network is available to connect to. Alternatively, suspecting the food they've eaten has not agreed with them, they could find they are denied easy access to the best online information on how to properly treat their symptoms.&lt;br /&gt;
&lt;br /&gt;
===Table of death causes===&lt;br /&gt;
{| class=wikitable&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Cause of death&lt;br /&gt;
! Scope=“col” | Time frame&lt;br /&gt;
! scope=&amp;quot;col&amp;quot; | Explanation&lt;br /&gt;
|-&lt;br /&gt;
| Lava || Earth Forms || During the formation of the Earth, the surface was a hellish landscape of lava.{{fact}} &lt;br /&gt;
|-&lt;br /&gt;
| Asphyxiation || 4 billion years ago || Before {{w|cyanobacteria}} started photosynthesizing and producing oxygen, the atmosphere of the Earth was mainly composed of hydrogen sulfide, methane and carbon dioxide, without the significant amount of oxygen that humans need to breathe.&lt;br /&gt;
|-&lt;br /&gt;
| Meteors || 3.9 billion years ago || During the hypothesized {{w|Late Heavy Bombardment}}, the Earth's surface was subjected to a large number of asteroid and comet impacts, destroying much of Earth's early crust. According to the table, the heavy bombardment was so severe that this was the most likely cause of death during a period when there was still no oxygen. Even when these meteors came at an alarming rate, however, the chance of being hit by one of these before asphyxiation due to an atmosphere without any oxygen seems remote. Of course, if the time machine had some oxygen along with it and the reason people died from lack of oxygen was that they stayed there for a long time, the chance of death-by-meteor would increase.&lt;br /&gt;
|-&lt;br /&gt;
| Asphyxiation || 3 billion years ago || See above. &lt;br /&gt;
|-&lt;br /&gt;
| Slightly slower asphyxiation || 2 billion years ago|| Cyanobacteria had started photosynthesizing, leading to the {{w|Great Oxygenation Event|Oxygen Catastrophe}}, but oxygen levels still weren’t high enough to support human life. &lt;br /&gt;
|-&lt;br /&gt;
| Freezing || Less than 1 billion years ago || During the {{w|Cryogenian|Cryogenian Ice Age}}, the Earth’s temperature fell to -12°C, much too cold to support human life if not properly prepared.&lt;br /&gt;
|-&lt;br /&gt;
| Starving || 600 to 485 million years ago || During this time, the temperature was mild and comfortable; however, the only life during this time was single-cell organisms and – especially later – tiny multicellular organisms, which are very difficult to gather and may not be sufficiently healthy and nutritious. (Imagine surviving only on bacteria today.)&lt;br /&gt;
|-&lt;br /&gt;
| Eaten by fish || 485 to 250 million years ago || During the {{w|Great Ordovician Biodiversification Event}} and subsequent times, fish {{w|Evolution of fish|evolved jaws}} and some species grew quite large.&lt;br /&gt;
|-&lt;br /&gt;
| Trampled || 252 to 66 million years ago || The {{w|Mesozoic Era}} is often called the “Age of Dinosaurs.&amp;quot; The majority of these dinosaurs were herbivorous and many were quite large, so being eaten would be less likely than being trampled on.&lt;br /&gt;
Note that this is an almost exact inversion of what happens in the classic story ''{{w|A Sound of Thunder}}'', in which the traveler survives personally unscathed but tramples an 'age of dinosaur' creature (to unfortunate effect).&lt;br /&gt;
|-&lt;br /&gt;
| Eaten by mammals || 66 million years ago to sometime before now || The {{w|Cenozoic Era}}, which began 66 million years ago, is often referred to as the &amp;quot;Age of Mammals&amp;quot;. Though some eras have more likely causes of death (such as wars, but that would basically be during the &amp;quot;Now&amp;quot; period in the table), overall being eaten by large mammals is probably the biggest risk.&lt;br /&gt;
|-&lt;br /&gt;
| Time machine door gets stuck || Roughly present day || As the timeline approaches the present day, the conditions on Earth become more than suitable enough for a human time traveler to survive extended periods of time &amp;amp;mdash; as evidenced by the fact hominids and early humans begin to emerge. As such, when it comes to hazards that can kill the time traveler before they can do anything at their destination, there's nothing else more likely to kill them than a problem with the time machine itself; the example given is being unable to open the door of the time machine (whether because the door is broken or the time machine is parked right up against an obstacle) and dying of thirst or starvation (or, if the time machine is air-tight, asphyxiating). This assumes the time machine is also a {{w|Faraday Cage}} (that can block the signal of an emergency call) or the traveler doesn't take their phone with them, although the title text indicates they will. Or that the &amp;quot;Now&amp;quot; period extends back before cell phones and compatible cellular networks, maybe covering the entire period of human civilization. But mostly it is a punchline comparing severely dangerous situations to severely harmless ones.&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A chart with a time line going from top to bottom is shown. Starting when the Earth forms and ending at present day. The chart is a rectangle divided into 11 segments. Each segment has a label written inside it, except the bottom which is too thin, thus the label is to the right of the chart with an arrow pointing to the segment. The left side of the chart is a timeline with ticks and labels for the time period. At the top an arrow points to the top left corner of the chart with a label indicating the starting time. And then there are 5 ticks, the first four equidistant and then only half the distance for the last tick. A final label is at the bottom of the chart. Above the chart there is a heading:]&lt;br /&gt;
:Top causes of death for time travelers by geologic era:&lt;br /&gt;
&lt;br /&gt;
:[Text in the table from the top, with the time to the left differentiated from the labels which are indented:]&lt;br /&gt;
:Earth forms&lt;br /&gt;
::Lava&lt;br /&gt;
::Asphyxiation&lt;br /&gt;
:4 billion years ago&lt;br /&gt;
::Meteors&lt;br /&gt;
::Asphyxiation&lt;br /&gt;
:3 billion years ago&lt;br /&gt;
:2 billion years ago&lt;br /&gt;
::Slightly slower asphyxiation&lt;br /&gt;
:1 billion years ago&lt;br /&gt;
::Freezing&lt;br /&gt;
::Starving&lt;br /&gt;
:500 million years ago&lt;br /&gt;
::Eaten by fish&lt;br /&gt;
::Trampled&lt;br /&gt;
::Eaten by mammals&lt;br /&gt;
:Now&lt;br /&gt;
::Time machine door gets stuck&lt;br /&gt;
&lt;br /&gt;
== Trivia ==&lt;br /&gt;
&lt;br /&gt;
Modern adults can actually have great difficulty surviving without modern conveniences, and may die of freezing if released into an earlier era than they are familiar with. Children of certain ages may thrive well, neither freezing or being eaten by mammals, after a period of adaptation.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Timelines]]&lt;br /&gt;
[[Category:Time travel]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Animals]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2974:_Storage_Tanks&amp;diff=383223</id>
		<title>2974: Storage Tanks</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2974:_Storage_Tanks&amp;diff=383223"/>
				<updated>2025-08-04T20:39:06Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Analysis and Calculation */ Removing section. It doesn't help explain the comic and it's incomplete anyway (&amp;quot;or just other&amp;quot;...what?)&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2974&lt;br /&gt;
| date      = August 19, 2024&lt;br /&gt;
| title     = Storage Tanks&lt;br /&gt;
| image     = storage_tanks_2x.png&lt;br /&gt;
| imagesize = 321x251px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = We're considering installing a pressurization system to keep the tanks at constant pressure solely to deter them.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{w|Calculus}} is a branch of mathematics which deals with continuously changing values. In order to demonstrate the application of this sort of math, introductory courses will commonly use physical examples to show how equations can be applied in real life. A [https://www.haywardflowcontrol.com/media/contentmanager/content//downloads//VessTime.pdf common example of such a problem] is to postulate a tank full of liquid, with a hole near the bottom, and ask the students to calculate how long it will take the tank to empty (generally assuming a cylindrical tank with the top at atmospheric pressure, leaking a low-viscosity fluid like water at a normal temperature flowing through a round hole.) The important variables are threefold: the radius of the tank, the height of the fluid above the hole, and the size of the hole.&lt;br /&gt;
&lt;br /&gt;
In this case, the change in the liquid level is a function of the rate of flow through the hole, which is a function of the fluid pressure at the entrance to the hole (in accordance with {{w|Torricelli's law}}), and that pressure is a function of the remaining level of liquid. Accordingly, the amount of fluid left in the tank above the hole will follow a quadratic decay, a concept covered in calculus courses. A student with a mastery of foundational principles of calculus should be able to calculate the decline in tank level. More advanced versions of the problem might involve (A) one tank draining into a second, which drains to the ground, or (B) a sealed tank, in which air pressure at the top falls as the tank drains. &lt;br /&gt;
&lt;br /&gt;
As mentioned, many STEM teachers like to use real-world examples, ideally physical demonstrations, to make abstract concepts more memorable for their students. A teacher might fill a jug with water, open a hole in the side, and invite students to compare the observed rate of draining to their calculations. This comic suggests that [[Miss Lenhart]] has taken this idea to extremes, having entered an industrial site and drilled a hole into a large, liquid-filled vat. One assumes that her class is either watching from afar, or that the leak is being somehow filmed. &lt;br /&gt;
&lt;br /&gt;
The conversation between the employees in hardhats implies that there's a rash of calculus teachers conducting similar demonstrations, to the point that the primary job of the head of security is to prevent this pedagogically-motivated destruction. In real life, this vandalism would be serious, with safety risks from damaged vats, pressurized liquid, or hazardous contents (note the hazard warning (⚠) on the tank). &lt;br /&gt;
&lt;br /&gt;
The title text jokingly alludes to the fact that by maintaining a constant pressure at the level of the leak, the rate of flow would also become constant, and the decline in level would therefore become linear, greatly simplifying the problem and eliminating the need for calculus. This easier version of the problem would presumably deter calculus teachers from using it as a demonstration — though it might attract similarly adventurous algebra teachers.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Two guards with helmets are standing on scaffolding to the left of two large tanks with labels at the top. The tanks are cylindrical with a smaller base than the tank above it. The left tank has a small sign with unreadable text and near the bottom of the right tank there is a triangular warning sign with an exclamation mark inside it and a line of unreadable text below it. The guard on the left is talking to the other guard. Miss Lenhart is seen running away from the right tank with an electric drill in one hand. There is a hole in the base of the right tank which has caused the liquid inside to leak out of the tank splashing on the ground in the direction of Miss Lenhart.]&lt;br /&gt;
:Left guard: As head of security, your primary task is to monitor the storage tanks and watch for calculus teachers trying to drill holes in their bases.&lt;br /&gt;
:Label: Tank #3&lt;br /&gt;
:Label: Tank #4&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Characters with hats]]&lt;br /&gt;
[[Category:Comics featuring Miss Lenhart]]&lt;br /&gt;
[[Category:Math]]&lt;br /&gt;
[[Category:Physics]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2974:_Storage_Tanks&amp;diff=383214</id>
		<title>2974: Storage Tanks</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2974:_Storage_Tanks&amp;diff=383214"/>
				<updated>2025-08-04T20:37:26Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Analysis and Calculation */ Removing section. It doesn't help explain the comic and it's incomplete anyway (&amp;quot;or just other&amp;quot;...what?)&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2972:_Helium_Synthesis&amp;diff=382957</id>
		<title>2972: Helium Synthesis</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2972:_Helium_Synthesis&amp;diff=382957"/>
				<updated>2025-07-31T03:18:25Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ The concept of likelihood doesn't really apply in this scenario.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;br /&gt;
{{comic&lt;br /&gt;
| number    = 2972&lt;br /&gt;
| date      = August 14, 2024&lt;br /&gt;
| title     = Helium Synthesis&lt;br /&gt;
| image     = helium_synthesis_2x.png&lt;br /&gt;
| imagesize = 740x312px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Our lawyers were worried because it turns out the company inherits its debt from the parent universe, but luckily cosmic inflation reduced it to nearly zero.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic explores the challenges of obtaining {{w|helium}}. [[Hairy]] is leading a company meeting with [[Megan]], [[Cueball]], and [[Hairbun]], who are discussing the recurring problem of {{w|helium shortage}}s, a real-world issue due to helium's limited availability on Earth. Helium is, for practical purposes, a non-renewable resource primarily extracted from {{w|natural gas}} deposits and its scarcity can affect industries such as medical imaging, semiconductor manufacturing, scientific research, and party balloon supplies.[https://www.marketplace.org/2023/01/19/heliums-been-rising-in-price-and-its-bringing-businesses-down/] See also [[2766: Helium Reserve]].  In theory, it is a renewable resource, in that a nearly unlimited amount could be produced by nuclear fusion or harvested from the sun.  However, the technology to do so has not been invented.&lt;br /&gt;
&lt;br /&gt;
Hairbun suggests investigating the origin of helium. Cueball's research reveals that most helium in the universe came from {{w|Big Bang nucleosynthesis}}, which occurred shortly after the {{w|Big Bang}} when the first elements were formed. It appears to have overlooked the fact that 99% of the helium on Earth has been produced from the slow {{w|radioactive decay}} of the {{w|decay chain}}s of naturally occurring {{w|uranium-238}} and {{w|thorium-232}} (which in turn came from {{w|r-process}} {{w|Supernova nucleosynthesis|nucleosynthesis}} scattered from merging {{w|neutron star}}s;[https://svs.gsfc.nasa.gov/13873/] see [[2826: Gold]]) emitting {{w|alpha particles}} that are identical to temporarily ionized helium, with only the remaining one percent originating from the Big Bang.&lt;br /&gt;
&lt;br /&gt;
Hairy assigns the team to figure out how to recreate Big Bang nucleosynthesis, which in real life is not actually possible for a contemporary business organization.{{cn}} Nonetheless, the team somehow builds a machine capable of it. They are successful, likely obliterating themselves and at least all the closest galaxies in the process. Alternatively, they may have created a separate universe containing the subsequent events, thus simply removing themselves from the scope of the comic.&lt;br /&gt;
&lt;br /&gt;
The final panels show the creation of a second Big Bang followed by the next 14 billion years of that new universe, culminating with the same characters in an identical meeting, presumably having arisen from the same series of post-Big Bang events as in the original universe. This suggests a {{w|cyclic universe}} in which events repeat themselves exactly. They are facing the same predicament: helium shortages have become a problem, and they once again need a more reliable source. The implication is that this is a recurring cycle, a religious/philosophical concept called {{w|eternal return}} that occurs in many world religions (such as Hinduism's {{w|Yuga_cycle|Cycle of Yugas}} of creation and destruction), but centered here on the helium needs of a unnamed, resourceful company.&lt;br /&gt;
&lt;br /&gt;
Another possible interpretation is that the new Big Bang does not destroy the existing universe, but creates a new one connected in some way to the old, from which helium can be extracted. This new universe's inhabitants would eventually develop the same problem with a shortage of helium, causing them to create another new universe to get helium from it, ''ad infinitum''.&lt;br /&gt;
&lt;br /&gt;
The title text is a wordplay on the concepts of {{w|cosmic inflation}} and {{w|monetary inflation}}. In economics, monetary inflation is the rate at which the cost of goods and services increases over time (one can also think of this as the value of money falling). If the interest rate on a debt is less than inflation, then the relative cost of the debt decreases over time. Cosmic inflation is a theory in cosmology that describes the rapid expansion of the universe just after the Big Bang. The joke imagines the original company as having incurred a significant debt (perhaps as a result of the costs of building the Big Bang machine), which has now been inherited by its subsidiary. Somehow, thanks to the effect of cosmic inflation, this debt was diluted (perhaps physically across the ever-expanding vastness of space), reducing it to almost nothing. See also [[2688: Bubble Universes]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Hairy sits on an office chair at the head of a conference table and has his hands on the table, with Cueball and Megan also at the table.]&lt;br /&gt;
:Hairy: These helium shortages every few years are such a pain.&lt;br /&gt;
:Hairy: Our company needs a reliable source of helium.&lt;br /&gt;
&lt;br /&gt;
:[The same situation, but now Hairbun is also seen at the table on the left side of Cueball. Cueball holds a cellphone in his left hand, which Megan and Hairbun look at.]&lt;br /&gt;
:Hairbun: Where does helium come from, anyway?&lt;br /&gt;
:Cueball: Hmm, apparently most of it is from &amp;quot;Big Bang nucleosynthesis&amp;quot;?&lt;br /&gt;
:Hairy: Well, let's figure out how to do that.&lt;br /&gt;
&lt;br /&gt;
:[Hairy, Megan and Hairbun are working on a large machine labeled &amp;quot;Big Bang Nucleosynthesis,&amp;quot; with Megan holding its wired control device in her left hand.]&lt;br /&gt;
&lt;br /&gt;
:[Two panels depict another Big Bang, followed by various stages of cosmic development, including galaxies and planets forming, shown in white on a black background.]&lt;br /&gt;
&lt;br /&gt;
:[The scene returns to the same conference room setup as before, with the characters in the same positions (although Hairy's hair is subtly different from the first frame). Text at the top of the box reads: &amp;quot;14 Billion Years Later&amp;quot;]&lt;br /&gt;
&lt;br /&gt;
:Hairy: These helium shortages every few years are such a pain.&lt;br /&gt;
:Hairy: Our company needs a reliable source of helium.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Hairbun]]&lt;br /&gt;
[[Category:Comics with inverted brightness]]&lt;br /&gt;
[[Category:Cosmology]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Recursion]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2954:_Bracket_Symbols&amp;diff=380705</id>
		<title>Talk:2954: Bracket Symbols</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2954:_Bracket_Symbols&amp;diff=380705"/>
				<updated>2025-07-01T19:01:12Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: Adding support for...someone who might be Stephen Greenfield&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
ummm.  How does editing this stuff work.  Is this HTML?  Why can't we have a gooey?  Also, I only sort of get this comic, but it's not that funny. &lt;br /&gt;
&amp;lt;marquee behavior=&amp;quot;scroll&amp;quot; direction=&amp;quot;up&amp;quot;&amp;gt;Here is some scrolling text... going up!&amp;lt;/marquee&amp;gt;&lt;br /&gt;
[[Special:Contributions/172.69.58.102|172.69.58.102]] 05:13, 4 July 2024 (UTC)&lt;br /&gt;
: Have a WHAT?  - [[Special:Contributions/172.70.179.88|172.70.179.88]] 09:26, 4 July 2024 (UTC)&lt;br /&gt;
:: A [https://kirby.fandom.com/wiki/Gooey Gooey]. Although I'm not sure how that would help.[[Special:Contributions/172.70.163.121|172.70.163.121]] 11:27, 4 July 2024 (UTC)&lt;br /&gt;
:: I'm sure that should be GUI (Graphical User Interface. --[[Special:Contributions/141.101.69.76|141.101.69.76]] 11:40, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
The &amp;quot;violin&amp;quot; symbols look like an upside-down bag symbol (multiset symbol) to me, moreso than integrals. [[Special:Contributions/172.69.58.135|172.69.58.135]] 18:09, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Did my best with my first ever contribution - I know there's a chart feature but I cba to relearn html. Feel free to fix it and PLEASE finish my bad explanations. [[User:Qwikster|Qwikster]] ([[User talk:Qwikster|talk]]) 06:05, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
⌊⌋ are floor brackets (and you can now copy-paste them from here into the explanation as needed) [[Special:Contributions/162.158.126.33|162.158.126.33]] 06:03, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
As for the spaghetti, in Python, it'd be a list containing a tuple containing a list containing a set containing an empty tuple. Probably doesn't mean anything specific and pretty much useless), but it *is* legal code [[Special:Contributions/162.158.126.164|162.158.126.164]] 06:05, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Yay, I figured out how to use a table! [[User:Qwikster|Qwikster]] ([[User talk:Qwikster|talk]]) 06:42, 4 July 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
I'm British, ex 60+ years and I'm sure I was taught in school to use &amp;quot;for first person speech&amp;quot; and 'for quoting others'. I hadn't even noticed printers doing the opposite. But there again I didn't go to Grammar School. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 07:36, 4 July 2024 (UTC)&lt;br /&gt;
:: [Update] Researching this issue, using &amp;quot; or ' is acceptable in the UK as long as you are consistent in any work. However, most British authored books I have use '. Then, thought I, Douglas Adams did his own type setting, what did he use? In my box set of HHG2G it's '. But then I found a first (paperback) print run of Dirk Gentley's Holistic Detective Agency... And he used &amp;quot;. I don't think he would have been fickle, so that tells me the ' in British books is a printers' foible. (Controversially, they were responsible for a lot of extra u's being added to 'Latinise' spelling, even in words with Greek or Germanic roots and the replacement of Fall with Autumn) YMMV.[[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 10:42, 5 July 2024 (UTC)&lt;br /&gt;
::: I remember thinking it was to 'save ink'. After all in a 300 page novel with a lot of &amp;quot;speech&amp;quot;, imagine how much savings you might have with 'speech', instead... ;)&lt;br /&gt;
::: But I'll accept &amp;quot;printer's foible&amp;quot; (or 'prïnter&amp;quot;s foïble'!) as an answer, given that we were still taught to ''write'' with doubles (and using fountain pens). Pity they couldn't have also refused to print Oxford Commas, though, which are complete waste of space (and, in their case, ink!)... [[Special:Contributions/172.69.195.64|172.69.195.64]] 12:30, 5 July 2024 (UTC)&lt;br /&gt;
:I'm British, too, and as I recall my school says sixty years ago, the symbols () are just called brackets and parenthesis is just the grammatical construct in which they can be used.  But you can use dashes or even commas to indicate a parenthesis.  This has been discussed  on such blogs has Ben Yagoda's Not One-off Britishisms. https://notoneoffbritishisms.com/2015/12/15/square-brackets/ --[[Special:Contributions/172.70.90.178|172.70.90.178]] 08:16, 4 July 2024 (UTC)&lt;br /&gt;
:Yeah - I don't know where this weird idea that British people use single quotes comes from - it's not my experience. Generally seems to be double quotes for direct speech, and single quotes for paraphrasing, scare quotes, 'jargonisms', etc. I've added to the explanation to reflect that a bit.[[Special:Contributions/172.69.195.176|172.69.195.176]] 11:33, 4 July 2024 (UTC)&lt;br /&gt;
::Similar vintage of Brit, here. Always taught to write &amp;quot;66s and 99s&amp;quot; on any primary quotation (you'd '6 and 9' quotes-within-quotes and 66/99 quotes-within-quotes-within-quotes). Except books often seemed to be single(-double(-single))-nesting, always assumed that was the US standard, as they tended to have the likes of &amp;quot;color&amp;quot; and &amp;quot;sulfur&amp;quot;, too.&lt;br /&gt;
::In typing (typewriter, word processor and on into the internet age) I'd use &amp;quot;&amp;quot;s as my primary, unless it 'wasn't really speech'... essentially scare-quotes, or emphasis. Though in the text-only information age (usenet, etc), I'd use some of the others for /Italics/, *Bold* and _Underline_ purposes.&lt;br /&gt;
::For coding purposes, I'd have to use whatever the programming language required (I added the note about Pascal's character/string differentation), except in Perl, where I go for a 'sensible' mix of aesthetics/readability and practicality as I make wide use of the [https://perldoc.perl.org/perlop#Quote-Like-Operators full range of options] available to me, in quotation context, whatever doesn't clash badly with any use of q[array], qq{sub or hash}, qx|binary OR|, =~s/whatever is in my/regexp/, etc...  [[Special:Contributions/172.69.194.36|172.69.194.36]] 12:54, 4 July 2024 (UTC)&lt;br /&gt;
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The integral sign (and its reverse) in the context of string instruments are the so-called 'F-holes', and they're not just decorative elements but help in the instrument(s) resonate more freely. Other shapes exist as well. See [https://en.wikipedia.org/wiki/Sound_hole here] for an in-depth explanation. [[Special:Contributions/172.69.151.27|172.69.151.27]] 09:13, 4 July 2024 (UTC)&lt;br /&gt;
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「かっこ」[[Special:Contributions/108.162.250.151|108.162.250.151]] 09:24, 4 July 2024 (UTC)&lt;br /&gt;
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Randall missed an opportunity to reference catamorphisms i.e. banana brackets. There may be some better examples missed as well.&lt;br /&gt;
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Who is that? [[Special:Contributions/172.68.186.156|172.68.186.156]] 10:05, 4 July 2024 (UTC)&lt;br /&gt;
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Likely reference to the quote and catchphrase &amp;quot;We can't stop here, this is bat country&amp;quot; from ''Fear and Loathing in Las Vegas''? [[Special:Contributions/162.158.134.242|162.158.134.242]] 11:05, 4 July 2024 (UTC)&lt;br /&gt;
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The 'violin' quotes may look similar (but not identical) to the S-Shaped bag delimiters (U+27C5 &amp;amp; U+27C6), though these are normally used in the opposite order to enclose multisets.&lt;br /&gt;
[[Special:Contributions/172.71.90.10|172.71.90.10]] 13:52, 4 July 2024 (UTC)&lt;br /&gt;
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The French quotation marks « » are better known as guillemets. They are also used in Spanish, and probably several other written languages. [[Special:Contributions/172.71.142.167|172.71.142.167]] 15:10, 4 July 2024 (UTC)&lt;br /&gt;
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The single-/double-quotes being recursively embedded with the other reminds me of a short story I once read. It had the form of a tale a person was telling of when he encountered a stranger with a tale of his own. In that tale, the stranger made the aquaintance of a particularly talkative individual. That individual reported the story he heard from a further interlocutor, that story featuring the reminiscences of someone else... ''Which came to a conclusion.&amp;quot; ...is the way it ended.' ...and so went that story&amp;quot; ...but of course that was just what was heard.' ...if, of course, you could credit it.&amp;quot;''  (It was more layers deep, of course, and with both starting quotes and the paragraph-maintaining standards of opening quotes, which yet still managed to suck you in.) Cannot remember who it was by/what it was called, but obviously the play on the style (a bit more clever than ''just'' &amp;quot;I met a man who said, 'I met a man who said, &amp;quot;I met a man who said, 'I met a man who said &amp;quot;...&amp;quot;'&amp;quot;'&amp;quot;) made a big impression on me at the time. [[Special:Contributions/172.70.162.18|172.70.162.18]] 19:51, 4 July 2024 (UTC)&lt;br /&gt;
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'''&amp;quot;~~ I'm being sarcastic and...&amp;quot;''' The symbol ≈ means approximately equal to. This is much used in some engineering writing. &amp;quot;Output level should be ≈1 Volt.&amp;quot; In casual work this may be approximated as &amp;quot;~&amp;quot;, or &amp;quot;~~&amp;quot; which is less liable to be confused for a negative sign. {{unsigned|PRR|04:02(+:03), 5 July 2024}}&lt;br /&gt;
:It can also be used for such as &amp;quot;~240V&amp;quot;, AC power supply, and I use tildes an awful lot in Perl for both regexp operations and bitwise negation (though I also like it as a nicely distinctive choice of delimiter character for joined/split data transportation, at times) . As to the comic text, I sort of associate it with the 'decorated' usernames (akin to Dwarf Fortress 'item quality modifiers', but of course not inspired by such, not sure if they inspired it) along the lines of &amp;lt;code&amp;gt;.~·«wIeRdLyReNdErEdNaMe»·~.&amp;lt;/code&amp;gt; [[Special:Contributions/172.70.91.158|172.70.91.158]] 10:21, 5 July 2024 (UTC)&lt;br /&gt;
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As the only person to get an Academy Technical Achievement Award for inventing screenplay text formatting (and a produced screenwriter in the WGAw), I’m here to let you know square brackets are NOT used in screenplays, teleplays, or stage plays to denote stage direction. Square brackets aren’t used for ANYTHING in those script forms. This should be corrected (by someone more conversant with edits) to indicate that normal parenthesis are used in screenplay or teleplays to indicate stage direction associated with specific passages of dialog. These are typically called “parenthetical action” or “parenthetical.”  Some stage play formats omit parenthetical action but place parentheses around passages of stage action. But NEVER square brackets. {{unsigned|SMGxkcd|13:11, 5 July 2024}}&lt;br /&gt;
:Per this unsigned comment, I've made the requested move from square brackets to parentheses. I don't know if this is correct or not, so maybe additional discussion could confirm or refute this claim. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 13:34, 5 July 2024 (UTC)&lt;br /&gt;
::FWIW I just checked five different printed scripts from three different publishers, and the poster's assertion holds true.[[User:Jkshapiro|Jkshapiro]] ([[User talk:Jkshapiro|talk]]) 19:01, 1 July 2025 (UTC)&lt;br /&gt;
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Should we start up an Animorphs category now?  It's been referenced a few times now, [[1380]], [[1817]], and also in [[1187]] and [[1360]].  [[User:Fephisto|Fephisto]] ([[User talk:Fephisto|talk]]) 14:00, 5 July 2024 (UTC)&lt;br /&gt;
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: has existed since 2014, and this comic is (as of now) tagged with it: Category:Animorphs --[[Special:Contributions/172.70.114.29|172.70.114.29]] 14:16, 5 July 2024 (UTC)&lt;br /&gt;
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:: ('_')b  [[User:Fephisto|Fephisto]] ([[User talk:Fephisto|talk]]) 14:18, 5 July 2024 (UTC)&lt;br /&gt;
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Double quotes: &amp;quot;Someone is talking&amp;quot;.&lt;br /&gt;
Single quotes: double quotes, but this someone is talking... with &amp;quot;missing teeth&amp;quot;...?  &lt;br /&gt;
Making fun of British dental hygiene is still common? Or died that out with Brexit?  &lt;br /&gt;
[[Special:Contributions/172.71.99.139|172.71.99.139]] 20:10, 5 July 2024 (UTC)&lt;br /&gt;
:It's [https://www.bbc.co.uk/news/magazine-32883893 basically untrue], of course. The difference might be that in Britain 'cosmetic' dentistry isn't as prioritised as actually keeping them healthy.&lt;br /&gt;
:It doesn't go into it there, but the thing about a third of people &amp;quot;not having any natural teeth&amp;quot; in thr 1970s might actually have been a side-effect of prior eras dental care, where the opportunity to have all your teeth taken out ''to avoid problems in the future''. Often arranged as a wedding present to newlyweds. So you had generations of adults (young to old) now using dentures (which either look better than 'natural' teeth or aren't made well enough). With the rise of the NHS (which initially got overwhelmed with people getting their traditional whole-mouth-removals 'free'), things changed so that it wasn't a ''luxury'' to get dental care, though it did become far less 'free at the point of need' than most other elements of healthcare (both as reaction against the initial overwhelming of the post-war services and from 'tweaking' (often by the usual political suspects) by one government or another).&lt;br /&gt;
:Right now, there are minor crises in 'dentist deserts' (the availability of NHS dentists being sparse for some regions, for various reasons), but ''if'' you are happily registered with a practice then you're probably as Ok as your own personal approach to dental hygiene allows you to be. And if you can (and want to) pay, then fill your boots with 'Turkey Teeth', whitening, straightening, etc, to make the &amp;quot;actually pretty ok&amp;quot; mouth whatever you think is 'perfection'. (Which often ends up giving you more of a 'plastic fake dentures' look than anything else.)&lt;br /&gt;
:I mean, not funny, but possibly educational. [[Special:Contributions/172.70.91.96|172.70.91.96]] 22:52, 5 July 2024 (UTC)&lt;br /&gt;
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Bad encoding. My firefox shows the title text as &amp;lt;code&amp;gt;â€™&amp;quot;â€˜â€â€™&amp;lt;/code&amp;gt; (on the original website, not here). [[Special:Contributions/172.71.210.81|172.71.210.81]] 11:16, 7 July 2024 (UTC)&lt;br /&gt;
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The explanation for the last item should probably reference the book ''Fear and Loathing in Las Vegas'' by Hunter S. Thompson, as that is the source of the quote in the film. [[Special:Contributions/172.70.85.153|172.70.85.153]] 17:48, 20 July 2024 (UTC)&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=380704</id>
		<title>2243: Star Wars Spoiler Generator</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=380704"/>
				<updated>2025-07-01T18:18:12Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Table */ Clean up language and remove suggestion that Venus was the victim of human-initiated climate change&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2243&lt;br /&gt;
| date      = December 18, 2019&lt;br /&gt;
| title     = Star Wars Spoiler Generator&lt;br /&gt;
| image     = star wars spoiler generator.png&lt;br /&gt;
| titletext = The heroes seem to be gaining the upper hand until Darth Juul manages to flip the switch on the car wash control panel from 'REGULAR' to 'PREMIUM.'&lt;br /&gt;
}}&lt;br /&gt;
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==Explanation==&lt;br /&gt;
On December 20, 2019 (2 days after the publication of this comic), the final movie of the &amp;quot;Skywalker saga&amp;quot; of ''Star Wars'' films, ''{{w|Star Wars: The Rise of Skywalker}}'', was officially released to the US. It received a world premiere in Los Angeles on December 16, so there are lots of spoilers online, and also lots of people who want to avoid spoilers.  [[Randall]] has created a flowchart that generates &amp;quot;spoilers&amp;quot; to the film, but as he probably has not seen the film (or, if he has, he doesn't actually want to spoil it for us), all of the so-called spoilers are nonsensical.&lt;br /&gt;
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The formula for each spoiler is as follows: &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain '''[villain name]''' with help from their new friend '''[friend name]'''. Rey builds a new lightsaber with a '''[color]''' blade, and they head out to confront the First Order's new superweapon, the '''[superweapon name]''', a space station capable of '''[evil plan]'''. They unexpectedly join forces with their old enemy '''[character]''' and destroy the superweapon in a battle featuring '''[strange event]'''. P.S. Rey's parents are '''[character]''' and '''[character]'''&amp;quot;.&lt;br /&gt;
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The {{w|First Order (Star Wars)|First Order}} is the main antagonist group in the ''Star Wars'' {{w|Star Wars sequel trilogy|sequel trilogy}} series (episodes VII, VIII, and IX). In ''{{w|Star Wars: The Force Awakens}}'', they use a superweapon in their base, {{w|Death_Star#Starkiller_Base|Starkiller Base}}, to destroy the planetary system housing the headquarters of the {{w|New Republic (Star Wars)|New Republic}}, the democratic government which was formed after the {{w|Galactic Empire (Star Wars)|Empire}}'s defeat in ''{{w|Return of the Jedi}}''. &lt;br /&gt;
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&amp;quot;Building a {{w|lightsaber}}&amp;quot; is one of the rites of passage for becoming a {{w|Jedi}} Knight. In the {{w|Star Wars prequel trilogy|prequel trilogy}} (episodes I, II, and III), new Jedi build lightsabers as an official part of the journey towards Knighthood, and in the {{w|Star Wars Trilogy|original trilogy}} (episodes IV, V, and VI), {{w|Luke Skywalker}} builds a lightsaber between ''{{w|The Empire Strikes Back}}'' and ''Return of the Jedi'' as part of his training with {{w|Yoda}}.  {{w|Rey (Star Wars)|Rey}} has used the lightsaber that {{w|Darth Vader|Anakin Skywalker}} made and used (which Luke also used when he was a new Jedi) for the first two movies of the sequel trilogy, and so it would be thematically appropriate for her to build her own prior to the trilogy's final entry.  Most Jedi lightsabers are either blue or green, with a few notable exceptions (e.g., {{w|Mace Windu}}'s purple lightsaber, which was chosen because purple is a cool color).  {{w|Lightsaber|Kyber crystals}} are aligned with the Light Side of {{w|the Force}}, so {{w|Sith}} must overpower and &amp;quot;bleed&amp;quot; their crystals before they will function for them, causing their distinctive red color.  Having a lightsaber of a color other than blue, green, or red is often seen in the ''Star Wars'' fandom as a sign of being a &amp;quot;{{tvtropes|MarySue|Mary Sue}}&amp;quot;, an accusation which has been made of Rey.&amp;lt;ref&amp;gt;Though often disputed. See [https://collider.com/rey-not-mary-sue-star-wars/ this article] for more information on both viewpoints.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Another common plot point in ''Star Wars'' media is the construction, use, and destruction of a {{tvtropes|superweapon}}.  These are inspired by stories and media of {{w|World War II}}, in which militaries rapidly developed novel technologies and weapons (including {{w|Wunderwaffe|&amp;quot;wonder-weapons&amp;quot;}}), while also launching massive operations to find, attack, and destroy critical elements of their enemies' resources and infrastructure, and constructing elaborate defenses for their own.  The attack on the {{w|Death Star}} in particular is inspired by {{w|Operation Chastise}}, the &amp;quot;bouncing bomb&amp;quot; attack on Germany's hydroelectric power plants; Operation Chastise was dramatized in the {{w|The Dam Busters (book)|1951 book}} and {{w|The Dam Busters (film)|1955 film}} ''The Dam Busters'', which was [https://www.youtube.com/watch?v=lNdb03Hw18M very thoroughly homaged] by ''A New Hope''.  The original trilogy of movies had only two Death Stars, but superweapons quickly became a staple of the {{w|Star Wars expanded to other media|Expanded Universe}} fiction, to the point that one book had {{w|Han Solo}} make fun of the Empire's tendency towards building superweapons, proposing such ridiculous names as &amp;quot;Galaxy Destructor&amp;quot; and &amp;quot;Nostril of Palpatine&amp;quot;.  Superweapons are also common in superhero stories.&lt;br /&gt;
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Redemption and making allies of old enemies is also a common plot point in ''Star Wars''.  Anakin Skywalker fell to the Dark Side and became Darth Vader, but eventually returned to the Light Side to protect his son, and Han Solo was initially a morally ambiguous character who was eventually convinced to join the {{w|Rebel Alliance}}.&lt;br /&gt;
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Rey, one of the main characters in the sequel trilogy series, is an orphan left behind on the planet {{w|Jakku}} as a child. As Rey is {{w|The Force|Force-sensitive}} and adept at using a lightsaber, there is much speculation among Star Wars fans as to the identity of her parents. Many major characters in ''Star Wars'' have unexpected heritages of great portent, most famously Luke, who was very distressed to learn that Darth Vader did not ''kill'' his father, as Obi-Wan had told him, but ''is'' his father. In ''{{w|Star Wars: The Last Jedi}}'', villain {{w|Kylo Ren}} tells Rey that she is the child of &amp;quot;filthy junk traders&amp;quot;, but many fans speculate that he was lying to her.&lt;br /&gt;
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The title text refers to the bottom option of the [strange event in battle] section. Apparently Lord Juul (or Darth Juul) is fighting the heroes in the Sith car wash. It is unclear what &amp;quot;flipping the switch&amp;quot; from Regular to Premium would do, but it seems to be beneficial to Darth Juul. A &amp;quot;premium&amp;quot; car wash usually has more features than a regular car wash, such as more cleaning brushes, waxing the car, cleaning the tires, etc., so perhaps the premium mode activates additional lightsabers.&lt;br /&gt;
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This is the second false-fact-generating comic, after [[1930: Calendar Facts]].&lt;br /&gt;
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==Table==&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Entry&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New villain&lt;br /&gt;
|-&lt;br /&gt;
| Kyle Ren&lt;br /&gt;
| Kyle Ren is one letter away from {{w|Kylo Ren|''Kylo'' Ren}}, the adopted &amp;quot;Sith name&amp;quot; of Ben Solo, son of Han and Leia Solo.  Kylo is one of the antagonists in all three movies in the sequel trilogy, but there's nobody in the films named &amp;quot;Kyle&amp;quot;.  (There are a handful of ''Legends'' characters named Kyle, most famously Kyle Katarn, protagonist of the ''Star Wars: Jedi Knight'' video game series.)&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Malloc}}&lt;br /&gt;
|  Malloc is a function used in the C programming language for '''m'''emory '''alloc'''ation in the running of a program. Malloc may sound similar to {{w|Darth Malak|Malak}}, the antagonist of the ''{{w|Star Wars: Knights of the Old Republic}}'' video game, and/or be the shortened form of [https://starwars.fandom.com/wiki/Kardue%27sai%27Malloc Kardue'sai'Malloc], an extremely minor background character in the New Hope cantina scene.&lt;br /&gt;
|-&lt;br /&gt;
| Darth Sebelius&lt;br /&gt;
| {{w|Sebelius}} is the last name of several people. &lt;br /&gt;
* {{w|Kathleen Sebelius}} is a former state representative and governor of Kansas who was Secretary of the Department of Health and Human Services under {{w|Barack Obama|President Obama}}. Sebelius was the named party in a {{w|National Federation of Independent Business v. Sebelius|Supreme Court case}} that upheld the provisions of the {{w|Affordable Care Act}} (&amp;quot;Obamacare&amp;quot;). The naming of Sebelius as a villain may reference the fact that the ACA has been controversial among certain groups. &lt;br /&gt;
* {{w|Jean Sibelius}} is a renowned Finnish composer. {{w|Sibelius (scorewriter)|Sibelius}} is also the name of a piece of music software.&lt;br /&gt;
Randall may have chosen this surname as it sounds similar to {{w|Darth Sidious}}, the overarching villain in the first six Star Wars films, who returned in ''The Rise of Skywalker'' as Palpatine. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Theranos}}&lt;br /&gt;
| Theranos was a medical technology company founded by {{w|Elizabeth Holmes}} which claimed to have developed revolutionary blood tests that could produce more data from limited volumes of blood than ever before.  They were eventually found to have engaged in fraudulent activity, having tricked investors into thinking their technology was performing better than it actually was or ever could, which resulted in the bankruptcy of Theranos and fines and prison sentences (served from 2023 on) for Holmes and Theranos president {{w|Ramesh Balwani}}. Theranos also sounds similar to {{w|Thanos}}, the main villain of the {{w|Infinity Saga}} in the {{w|Marvel Cinematic Universe}}.&lt;br /&gt;
|-&lt;br /&gt;
| Lord Juul&lt;br /&gt;
| {{w|Juul}} is a brand of e-cigarettes. In addition to the broader controversy surrounding electronic cigarettes, Juul has been investigated for its sale of flavored additives for their cigarettes, which are alleged to be particularly attractive to minors. Juul is reminiscent of the &amp;quot;uu&amp;quot; in the names for clones {{w|Joruus C'baoth}} and {{w|Luuke Skywalker}} in {{w|Star Wars Legends|''Star Wars'' Legends}} stories, thus implying Lord Juul is a clone of a character named Jul. ''{{w|Yule|Jul}}'' is the Scandinavian name for the midwinter holidays, which fits as the comic appeared within the Yule season of 2019.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New friend&lt;br /&gt;
|-&lt;br /&gt;
| Kim Spacemeasurer&lt;br /&gt;
| May be a parody of the name {{w|Luke Skywalker}}, one of the main characters in the original trilogy of films.  Other &amp;quot;Nounverber&amp;quot; names in ''Star Wars'' include Starkiller, Luke's original last name that was later applied to Starkiller Base in ''The Force Awakens'', and {{w|Biggs Darklighter}}, Luke's childhood friend and fellow {{w|Rebel Alliance|Rebel}} pilot who died in the attack on the original Death Star. Another Star Wars comic posted a few weeks before this one, [[2229: Rey and Kylo]], shows those characters actually deciding to measure properties of space.&lt;br /&gt;
|-&lt;br /&gt;
| Teen Yoda&lt;br /&gt;
| {{w|Grogu}}, commonly called &amp;quot;Baby Yoda&amp;quot; by fans and the media, is a breakout character from the Disney+ series ''{{w|The Mandalorian}}''. Randall parodies this with a teenage version of the character teaming up with the main characters. This may be in analogy to {{w|Groot}} in the Marvel Cinematic Universe, who appeared as an adult, then child, then teen, or other adaptations of original characters like the {{w|Teen Titans}}.&lt;br /&gt;
|-&lt;br /&gt;
| Dab Tweetdeck&lt;br /&gt;
| A {{w|Dab (dance)|dab}} is a dance move which is many decades old but was made popular by that name in the late 2010's.  {{w|TweetDeck}} is an application for managing Twitter accounts.  Taken together, &amp;quot;Dab Tweetdeck&amp;quot; could be a character name proposed by clueless Disney executives to attract &amp;quot;the kids&amp;quot; to see ''The Rise of Skywalker'', although one would think that this name would be heavily promoted and thus not a spoiler in that case.&lt;br /&gt;
Tweetdeck sounds similar to {{w|List_of_Star_Wars_species_(P–T)#Twi'lek|Twi'lek}}, one of the humanoid alien races in Star Wars, who often appear as dancers.&lt;br /&gt;
|-&lt;br /&gt;
| Yaz Progestin&lt;br /&gt;
| Yaz sounds like the first name of {{w|Maz Kanata}}, a supporting protagonist in the sequel trilogy.  Yaz is a medication which contains {{w|Progestin}}, which imitates the effects of {{w|progesterone}}, a female sex hormone.  It is used for purposes including birth control and acne treatment.&lt;br /&gt;
|-&lt;br /&gt;
| TI-83&lt;br /&gt;
| Droids in the Star Wars universe typically have names with letters and numbers, such as R2-D2, C-3PO, BB-8, etc. Randall has created a new character called &amp;quot;TI-83&amp;quot;. In real life, the {{w|TI-83}} was a model of graphing calculator manufactured by {{w|Texas Instruments}} that was commonly used in American high schools.  This mirrors the origin of the name &amp;quot;R2-D2&amp;quot;, which was inspired when Lucas was working on ''{{w|American Graffiti}}'' and was asked for Reel 2, Dialog Track 2, which was abbreviated &amp;quot;R-2-D-2&amp;quot;.  He remarked that it would be a &amp;quot;great name&amp;quot; and included it in his then-in-development script for ''Star Wars''.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Lightsaber colors&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Beige}}&lt;br /&gt;
| The pale grayish yellow of undyed wool.  This is certainly not a traditional lightsaber color, but at least it is conceivable to make with just light due to its paleness.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Ochre}}&lt;br /&gt;
| A pigment ranging from yellow to deep orange or brown.  Strictly speaking, ochre is the clay earth pigment that creates colors when white light reflects off of it, and as such cannot be produced directly by projecting light through a lightsaber.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Mauve}}&lt;br /&gt;
| Either refers to the first synthetic purple dye, or the paler color that mauve dye fades to after a few years.  While pale purple is an entirely feasible lightsaber color, and indeed has been used in the prequel trilogy by Jedi Master {{w|Mace Windu}}, mauve is humorously specific.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Aquamarine (color)|Aquamarine}}&lt;br /&gt;
| A blueish green color, as of the aquamarine gemstone. This is partway between the two traditional Jedi lightsaber colors, and would be hard to distinguish on a field of battle, somewhat lessening the impact of having a unique colored lightsaber.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Taupe}}&lt;br /&gt;
| A dark brown color between brown and gray.  Lightsabers cannot be dark colors, as making a color darker than its surroundings requires absorbing light, rather than producing it.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Superweapon names&lt;br /&gt;
|-&lt;br /&gt;
| Sun Obliterator&lt;br /&gt;
| There was an {{w|Star Wars Expanded Universe}} superweapon called the &amp;quot;Sun Crusher&amp;quot;, which would infiltrate a star system and shoot a special torpedo into the star to make it go supernova. May also be a reference to one of the doodles from ''[[What If?]]''.&lt;br /&gt;
|-&lt;br /&gt;
| Moonsquisher&lt;br /&gt;
| There were no ''Star Wars'' superweapons with the word &amp;quot;Moon&amp;quot; in their title (or &amp;quot;squisher&amp;quot;), but in the no-longer-canon ''New Jedi Order'' series, Chewbacca was squished ''by'' a moon that was intentionally de-orbited by invading Yuuzhan Vong.&lt;br /&gt;
|-&lt;br /&gt;
| World Eater&lt;br /&gt;
| Possibly a reference to {{w|Alduin}}, the main villain of the popular game {{w|The Elder Scrolls V: Skyrim}}.  In the Expanded Universe, the Empire used World Devastators, massive machines that would strip-mine planets with tractor beams and make weapons and spacecraft from the extracted resources.  Another possible reference is to the {{w|The Doomsday Machine (Star_Trek: The Original Series)|Planet Eater}} doomsday machine from the original Star Trek series. A further possible reference is to the World Eaters space marine legion from {{w|Warhammer 40,000}} franchise. Or a world eater redstone contraption from Minecraft. Or the [https://terraria.wiki.gg/wiki/Eater_of_Worlds boss for the Corruption biome] in Terraria. Or Jörmungandr. There are a lot of things that this could be referring to.&lt;br /&gt;
|-&lt;br /&gt;
| Planet Zester&lt;br /&gt;
| A {{w|zester}} is a cooking tool for zesting citrus fruit, that is, scraping off the outer layer of a citrus fruit to obtain the flavorful outer layer of its skin.  Zesting a planet would be devastating to anything built or living on its surface.&lt;br /&gt;
|-&lt;br /&gt;
| Superconducting supercollider&lt;br /&gt;
| A {{w|supercollider}}, or particle accelerator, is a machine used to accelerate charged particles to very high speeds, for testing in particle physics. The {{w|Superconducting Super Collider}} was a proposed accelerator which was to be constructed in Texas, but was cancelled partway through construction.  There has been some minor controversy over the {{w|safety of high-energy particle collision experiments}}, which could theoretically produce black holes, {{w|strangelets}}, or other doomsday scenarios, but all scientific examination of the energies involved has shown that all currently-existing and planned particle accelerators pose no threats.  So far, the Earth has not been destroyed by any particle accelerator.{{Citation needed}}&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; |  Station capabilities&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
| This is how the {{w|Death Star}} was depicted in ''{{w|Star Wars: A New Hope}}''. Many beams converged together to form one energy beam. The superweapon was used to destroy the planet Alderaan, as a way to intimidate Princess Leia.&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
| This is how the superweapon on Starkiller Base was depicted in ''{{w|Star Wars: The Force Awakens}}''. A single energy beam split into several beams, allowing it to attack many planets. The superweapon was used to destroy the planets in the Hosnian system, the headquarters of the New Republic.&lt;br /&gt;
|-&lt;br /&gt;
| cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
| Jango Fett's &amp;quot;seismic charge&amp;quot; weapon, which he used in a dogfight against Obi-Wan Kenobi in ''Attack of the Clones'', produced a plane wave that cut asteroids in half; presumably a larger weapon of this kind could do the same to a planet.&lt;br /&gt;
|-&lt;br /&gt;
| increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
| This is a reference to {{w|climate change}} currently occurring on planet Earth.  The {{w|Scientific consensus on climate change|overwhelming consensus among climate scientists}} is that this shift is caused by human factors, such as the burning of fossil fuels releasing ancient carbon sources into the air as carbon dioxide, and mass deforestation reducing the number of trees converting the carbon dioxide into sugars and cellulose.  Climate change has been addressed repeatedly by the comic before, including [[164: Playing Devil's Advocate to Win]], [[1321: Cold]], [[1379: 4.5 Degrees]], and [[1732: Earth Temperature Timeline]].&lt;br /&gt;
|-&lt;br /&gt;
| triggering the end credits before the movie is done&lt;br /&gt;
| The {{w|closing credits}} or end credits of a film is the list of cast and crew who were involved in the making of the film. It would be quite strange to show the end credits of the film before it has concluded, although it is one of the {{tvtropes|CreditsGag|types of credits gag}} used in other media. This entry is considerably less damaging to a planet{{Citation needed}} than the other 4 entries in this section, but if early audiences are left unsatisfied by the movie, they might tell everyone else not to see it, which would put the ''Star Wars'' franchise in a perilous financial situation.  This would negatively impact the villains as well as the heroes, but they might consider this a worthwhile trade if it is their best option at harming the heroes. This option may be a reference to exploiting a glitch to trigger a [https://youtu.be/Jf9i7MjViCE credit warp] in games such as Super Mario World. This may also be a reference to the Netflix interactive movie &amp;quot;Bandersnatch&amp;quot; in which certain choices triggered the end of the movie and caused it to start the credits.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Old enemy/new friend&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Boba Fett}}&lt;br /&gt;
| Boba Fett is a famous bounty hunter introduced in the ''{{w|Star Wars Holiday Special}}'' and made popular by ''{{w|The Empire Strikes Back}}''.  On the Empire's orders, he helped capture Han Solo as part of a plot to capture Luke Skywalker. He later tried to prevent Luke from rescuing Han, but was knocked into a sarlacc pit, where he was presumed eaten.  In the Expanded Universe, he survived and did eventually join the protagonists against extragalactic invaders; his survival has not been confirmed by Disney's new canon, but he would be a plausible character to bring back in ''The Rise of Skywalker''. A Mandalorian (not Boba Fett, but a bounty hunter using body-armour &amp;lt;!-- Boba was 'born' on the ocean-world of Kamino, being an unaccelerated clone of Jango; maybe Jango was and maybe The Mandalorian was from the desert-planet of Mandalore, but that is beyond my inherit knowledge of canon, so right now I'll make this change and let someone else who cares enough about it and has seen Disney+ refine this further--&amp;gt; from the same planet) is featured in the new Disney+ series, ''The Mandalorian''.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Salacious B. Crumb|Salacious Crumb]]&lt;br /&gt;
| Salacious B. Crumb is a Kowakian monkey-lizard who was Jabba the Hutt's jester.  He wasn't exactly a major adversary, but he did pull one of C-3PO's eyes out.  He was last seen on Jabba the Hutt's sail barge, which was made to explode after Han, Luke, and the rest of the heroes escaped from it, and is presumed dead.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Exogorth|The Space Slug]]&lt;br /&gt;
| In ''The Empire Strikes Back'', Han Solo pilots the Millennium Falcon into a giant cave to evade pursuit and get time to effect repairs.  He is interrupted when the cave turns out to be the mouth of a giant space slug, which the Falcon barely escapes.  A giant space slug might be a powerful ally in a battle against a giant space station.&lt;br /&gt;
|-&lt;br /&gt;
| The bottom half of {{w|Darth Maul}}&lt;br /&gt;
| Darth Maul was cut in half by Obi-Wan Kenobi at the end of ''The Phantom Menace''.  His &amp;quot;upper half&amp;quot;, attached to mechanical legs, has returned as a villain in the ''Clone Wars'' TV series and ''{{w|Solo: A Star Wars Story|Solo}}''.  Given that Maul was a Sith and Kenobi a Jedi, who trained Luke, who trained Rey, it would be extremely unexpected for his &amp;quot;bottom half&amp;quot; to join forces with the heroes, although presumably his bottom half would have to be attached to something, which might be better disposed towards Jedi.&lt;br /&gt;
If Darth Maul's bottom half did join the heroes, they might aid the heroes by using [[wikia:w:c:starwars:Force kick|force kicks]].&lt;br /&gt;
|-&lt;br /&gt;
| YouTube commenters&lt;br /&gt;
| The sequel trilogy has received more mixed reviews from watchers than Disney might like, and many vocal non-fans have taken to commenting on YouTube (via videos and comments) on what they don't like about the new movies and new characters.  If ''The Rise of Skywalker'' fully wins the crowd, an alliance between the heroes and their former critics would be extremely powerful, but with Rotten Tomatoes showing a critics' aggregate score of [https://www.rottentomatoes.com/m/star_wars_the_rise_of_skywalker/ less than 60%] (&amp;quot;rotten&amp;quot;), it's going to be an uphill battle.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Battle feature&lt;br /&gt;
|-&lt;br /&gt;
| a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
| May be a reference to the [[wikia:w:c:starwars:Bowcaster|bowcaster]], a laser crossbow weapon used by the Wookie {{w|Chewbacca}}. It is unclear if the lightsaber-headed arrows are actually lightsabers in itself, as they would seem difficult to produce (as opposed to the Death Star, or even a bunch of sword versions of the arrow).&lt;br /&gt;
|-&lt;br /&gt;
| X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
| The {{w|Star Wars opening crawl|&amp;quot;opening crawl&amp;quot;}} is a signature motif used in all the main Star Wars films, to explain the backstory and context of each film. {{w|X-Wing}}s and {{w|TIE fighter}}s are fighter-type spaceships used by the Rebels (and Resistance later on) and the Empire (and First Order), respectively. A dogfight scene during the opening crawl would involve {{w|Fourth wall|breaking the fourth wall}}, as the opening crawl is not presumed to be part of the universe of the films (except when so parodied, such as in {{w|Airplane II: The Sequel}}).&lt;br /&gt;
|-&lt;br /&gt;
| a Sith educational display that uses Force lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
| [[wikia:w:c:starwars:Force lightning|Force lightning]] is a power that Force users can use to generate electric energy from the user's hands. It was first used in ''Return of the Jedi'' by Emperor Palpatine (Darth Sidious) when Luke Skywalker refuses to give in to the dark side of the Force. Palpatine attempts to kill Luke with Force lightning, but Darth Vader saves Luke by throwing Palpatine down a reactor chute.  Palpatine also used Force Lightning on Mace Windu and Yoda during their battles at the end of ''Revenge of the Sith''.  None of these uses of Sith lightning were intended to be educational on the nature of {{w|lightning}}, although they could have been very educational on the pain, cruelty, and &amp;quot;unlimited power!&amp;quot; offered by the Dark Side of the Force. This might also be a reference to [[wikia:w:c:starwars:Sith holocron|Sith holocron]] — a device to store Force-related information and secrets, possibly. Possibly also a reference to [[2229: Rey and Kylo]] &lt;br /&gt;
|-&lt;br /&gt;
| Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
| Kylo Ren is famous for wearing his helmet in ''The Force Awakens'', which he styled after Darth Vader's helmet.  Putting on another helmet over it would require a comically large helmet that might be compared to Dark Helmet, a character from the parody film ''{{w|Spaceballs}}'' who parodies Darth Vader.&lt;br /&gt;
|-&lt;br /&gt;
| a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
| This may be a reference to some reactions to Kylo Ren's &amp;quot;lightcrossguards&amp;quot;.  In-universe, his lightsaber is said to contain a Kyber crystal of unusual power and instability, which produces excess energy that must be vented through side channels.  However, many watchers found it ridiculous to present a lightsaber that appeared to have little lightsabers sticking out of it, and produced [https://knowyourmeme.com/memes/crossguard-lightsaber fanart] accordingly.&lt;br /&gt;
While an unexpected car wash finale scene seems unlikely, it is not without precedent in cinema; ''{{w|Adolescence of Utena}}'' featured the title character unexpectedly entering a car wash and transforming into a car (followed by a segue into a car race sequence). &lt;br /&gt;
George Lucas, the originator of Star Wars also wrote the movie &amp;quot;American Graffiti,&amp;quot; which featured cars prominently.  A subsequent movie &amp;quot;Car Wash,&amp;quot; has been seen as a commentary on or imitation of &amp;quot;American Graffiti.&amp;quot;  Including a Sith car wash might reference the relation between these two films.[https://www.nytimes.com/2019/01/25/movies/streaming-car-wash.html ‘Car Wash,’ a Raunchy 1970s Comedy Brimming With Meta and Mayhem].&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #1&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Luke Skywalker|Luke}} &lt;br /&gt;
| Luke Skywalker is the main character of the original Star Wars films.  Of all of the characters presented here, he is the one with the greatest likelihood of being Rey's father.  When Maz gave Rey Luke's lightsaber, she said &amp;quot;[t]hat lightsaber was Luke's, and his father's before him, and now, it calls to you.&amp;quot;  Luke does not seem to recognize Rey as his child (or as anybody in particular), but Darth Vader did not recognize Luke or Leia as his children -- and indeed did not know that he had any living children -- until they were grown.  However, unlike Anakin Skywalker, or the Luke Skywalker from the pre-Disney Expanded Universe, no canon materials have presented anyone with whom Luke has fallen in love or fathered a child.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Princess Leia|Leia}} and {{w|Han Solo|Han}}&lt;br /&gt;
| Princess Leia and Han Solo are the other main characters of the original Star Wars films. It is unlikely that Leia or Han are Rey's parents as they did not seem to recognize Rey in any of the sequel trilogy films, nor is there any indication that they have had more than one child (Ben Solo, AKA Kylo Ren).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Obi-Wan Kenobi|Obi-Wan}}&lt;br /&gt;
| Obi-Wan Kenobi was one of the main characters in the Star Wars prequel trilogy. He, along with Qui-Gon Jinn, discovered Anakin Skywalker, who later became Darth Vader. Kenobi dies at the second act of ''Star Wars: A New Hope'', sacrificing himself to allow Luke, Leia, and Han to escape the Death Star.  Marriage and parenthood were forbidden by the Jedi Order, and Obi-Wan generally adhered to the Order's rules more closely than Anakin did; Obi-Wan did feel some mutual romantic attraction with Duchess Satine of Mandalore, but they both chose to remain in their respective organizations rather than pursue a relationship.  Also, Obi-Wan stopped having a physical form decade before Rey was conceived.&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| This is who Kylo Ren claims that Rey is descended from: worthless, random junk traders.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #2&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Poe Dameron|Poe}}&lt;br /&gt;
| Poe Dameron is one of the main characters of the Star Wars sequel trilogy. He is a pilot in the Resistance.  He is only 13 years older than Rey, and thus is most likely not her father.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|BB-8}}&lt;br /&gt;
| BB-8 is an astromech droid owned by Poe Dameron. It is unlikely that Rey is descended from a (non-living) droid, [https://youtu.be/aanyjLmB1Bs?t=1810 Alan Dean Foster's treatment of Episode IX aside].&lt;br /&gt;
|-&lt;br /&gt;
| [ {{w|Amilyn Holdo}} /{{w|Laura Dern}}]&lt;br /&gt;
| Vice Admiral Amilyn Holdo, portrayed by Laura Dern, was a leader in the Resistance. She dies at the end of ''The Last Jedi'', sacrificing herself by jumping to light speed straight into the First Order's pursuing starship.  Randall presents both Admiral Holdo, the character, and Laura Dern, the actress, as separate options for Rey's mother, but the former is not supported by any story material and the latter is impossible (Dern is alive here and now, not &amp;quot;a long time ago in a galaxy far, far away&amp;quot;).&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| (see above)&lt;br /&gt;
|-&lt;br /&gt;
| that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
| This is [[wikia:w:c:starwars:GNK power droid|a droid]] from ''Star Wars: A New Hope'' that says &amp;quot;Gonk&amp;quot;. As in the BB-8 entry, it is unlikely that Rey is descended from a droid.&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Following the release of ''The Rise of Skywalker'', we can conclude that the correct version of the spoiler would read as follows:&lt;br /&gt;
&lt;br /&gt;
In this Star Wars movie, our heroes return to take on the First Order and new villain... '''Darth Sidious''' (i.e., Emperor Palpatine, who is said to have &amp;quot;somehow&amp;quot; returned) ...with help from their new friend... '''D-O''' (a droid who turns out to have vital information).  Rey builds a new lightsaber with a... '''yellow''' blade (although this blade is not actually completed until the end of the movie), and they head out to confront the First Order's new superweapon, the... '''Final Order''' ...a ''fleet of spacecraft'' capable of... '''blowing up a bunch of planets with a bunch of beams of energy''' (one from each Star Destroyer).  They unexpectedly join forces with their old enemy... '''General Armitage Hux and Kylo Ren/Ben Solo''' ...and destroy the superweapon in a battle featuring... '''a storm of Force lightning'''.  P.S. Rey's parents are... '''a random junk trader''' ...and... '''a random junk trader, who is a clone-son of Emperor Palpatine'''.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:&amp;lt;big&amp;gt;Star Wars Spoiler Generator&amp;lt;/big&amp;gt;&lt;br /&gt;
&lt;br /&gt;
:[Shown below is a branching flowchart of sorts that begins at the phrase &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain...&amp;quot;, then flows through various paths to build up a story.]&lt;br /&gt;
&lt;br /&gt;
:In this Star Wars movie, our heroes return to take on the First Order and new villain...&lt;br /&gt;
::Kyle Ren&lt;br /&gt;
::Malloc&lt;br /&gt;
::Darth Sebelius&lt;br /&gt;
::Theranos&lt;br /&gt;
::Lord Juul&lt;br /&gt;
&lt;br /&gt;
:...with help from their new friend...&lt;br /&gt;
::Kim Spacemeasurer&lt;br /&gt;
::Teen Yoda&lt;br /&gt;
::Dab Tweetdeck&lt;br /&gt;
::Yaz Progestin&lt;br /&gt;
::TI-83&lt;br /&gt;
&lt;br /&gt;
:Rey builds a new lightsaber with a...&lt;br /&gt;
::beige&lt;br /&gt;
::ochre&lt;br /&gt;
::mauve&lt;br /&gt;
::aquamarine&lt;br /&gt;
::taupe&lt;br /&gt;
&lt;br /&gt;
:...blade, and they head out to confront the First Order's new superweapon, the...&lt;br /&gt;
::Sun Obliterator&lt;br /&gt;
::Moonsquisher&lt;br /&gt;
::World Eater&lt;br /&gt;
::Planet Zester&lt;br /&gt;
::Superconducting Supercollider&lt;br /&gt;
&lt;br /&gt;
:...a space station capable of...&lt;br /&gt;
::blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
::blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
::cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
::increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
::triggering the end credits before the movie is done&lt;br /&gt;
&lt;br /&gt;
:They unexpectedly join forces with their old enemy...&lt;br /&gt;
::Boba Fett&lt;br /&gt;
::Salacious Crumb&lt;br /&gt;
::The Space Slug&lt;br /&gt;
::the bottom half of Darth Maul&lt;br /&gt;
::Youtube commenters&lt;br /&gt;
&lt;br /&gt;
:...and destroy the superweapon in a battle featuring&lt;br /&gt;
::a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
::X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
::a Sith educational display that uses Force Lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
::Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
::a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
&lt;br /&gt;
:P.S. Rey's parents are...&lt;br /&gt;
::Luke&lt;br /&gt;
::Leia&lt;br /&gt;
::Han&lt;br /&gt;
::Obi-Wan&lt;br /&gt;
::a random junk trader&lt;br /&gt;
&lt;br /&gt;
:...and...&lt;br /&gt;
::Poe&lt;br /&gt;
::BB-8&lt;br /&gt;
::Amilyn Holdo&lt;br /&gt;
::Laura Dern&lt;br /&gt;
::a random junk trader&lt;br /&gt;
::that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&amp;lt;!-- Include any categories below this line. --&amp;gt;&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Star Wars]]&lt;br /&gt;
[[Category:Comics featuring real people]] &amp;lt;!-- Laura Dern --&amp;gt;&lt;br /&gt;
[[Category:Programming]] &amp;lt;!-- malloc --&amp;gt;&lt;br /&gt;
[[Category:Disney]]&lt;br /&gt;
[[Category:Movies]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2954:_Bracket_Symbols&amp;diff=380703</id>
		<title>2954: Bracket Symbols</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2954:_Bracket_Symbols&amp;diff=380703"/>
				<updated>2025-07-01T17:59:37Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Clean up explanation and remove alternation between singular and plural&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2954&lt;br /&gt;
| date      = July 3, 2024&lt;br /&gt;
| title     = Bracket Symbols&lt;br /&gt;
| image     = bracket_symbols_2x.png&lt;br /&gt;
| imagesize = 592x569px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = ’&amp;quot;‘”’&amp;quot; means &amp;quot;I edited this text on both my phone and my laptop before sending it&amp;quot;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Brackets, also called parentheses, are typographical symbols used to delimit a section of text. Unlike most typographical symbols, brackets usually come in pairs, and the end bracket is typically the mirror image of the start bracket.&lt;br /&gt;
&lt;br /&gt;
This comic shows a variety of (mostly) real bracket symbols, along with Randall's description.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot; &lt;br /&gt;
|+Descriptions&lt;br /&gt;
|-&lt;br /&gt;
! Symbols&lt;br /&gt;
! Comic text&lt;br /&gt;
! Real use&lt;br /&gt;
! Explanation of the joke&lt;br /&gt;
|-&lt;br /&gt;
|( )&lt;br /&gt;
|Regular parentheses for setting stuff aside&lt;br /&gt;
|Ordinary curved brackets, or parentheses, are the most commonly used in literature. They typically denote remarks that are relevant to, but not part of, a sentence (for example, a clarifying explanation). In stage plays, teleplays and screenplays, they can indicate stage directions. They are also frequently used in mathematical expressions and programming languages to force a particular order of evaluation.&lt;br /&gt;
|Randall explains, accurately, that these are regular parentheses. No joke yet.&lt;br /&gt;
|-&lt;br /&gt;
|[ ]&lt;br /&gt;
|Square brackets (more secure)&lt;br /&gt;
|In literature, square brackets often denote meta-textual information, such as {{w|Gloss (annotation)|glosses}}, omissions for brevity, editorial comments or translation-related notes. In mathematics, they are often used for {{w|Matrix (mathematics)|matrices}} or {{w|Interval (mathematics)|closed intervals}}. Sometimes they are used as outer parentheses for easier visual matching in complicated expressions. In programming languages, square brackets are commonly used as the indexing operator, with the index being placed inside the brackets. They may also be used to denote specific data structures such as arrays or lists. In language definition syntaxes such as {{w|Extended Backus–Naur form}}, square brackets indicate something optional. &lt;br /&gt;
|The straight edges and sharper corners make these brackets resemble a solid box, presumably made of a hard material, which would be a more secure container than the &amp;quot;soft&amp;quot;-looking curved brackets. They also resemble staples, which are used to hold things in place securely. This may also be a pun on &amp;quot;open&amp;quot; and &amp;quot;closed&amp;quot; intervals, with the joke being that a &amp;quot;closed&amp;quot; interval is more secure than an &amp;quot;open&amp;quot; one, since it is harder for things to leave a closed container without your consent.&lt;br /&gt;
|-&lt;br /&gt;
|{ }&lt;br /&gt;
|This stuff is expensive so be careful with it&lt;br /&gt;
|Known as &amp;quot;curly brackets&amp;quot; or &amp;quot;braces&amp;quot;. Rarely used in normal text, although may be used in expanded form to 'enclose' multiple optional lines following/preceding a single element of common purpose (similar to the 'split and recombined tracks' of [[2243: Star Wars Spoiler Generator]]). In mathematics, usually used to denote {{w|Set (mathematics)|sets}}, but other usage is possible. In programming languages they are popularly used to denote the start and end of a block of code, to the point that there is an entire group of languages informally known as '{{w|List of programming languages by type#Curly-bracket languages|curly-bracket languages}}'. In language definition syntaxes, curly brackets often denote that an expression can be repeated multiple times.&lt;br /&gt;
|Curly brackets look fancy, like gates with ornate ironwork. Randall implies a world where expensive stuff is set aside using the fanciest brackets available. Writing them by hand is also more complicated than regular or square brackets (in a way making them slightly more time consuming/expensive).&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;span style=&amp;quot;display:inline-block; transform:scaleX(-1);&amp;quot;&amp;gt;‶&amp;lt;/span&amp;gt; ‶&lt;br /&gt;
|Someone is talking&lt;br /&gt;
|Used to denote speech or citations in normal text. There are various styles from the identical pairing &amp;quot;&amp;amp;#8201;&amp;quot; to the 66-and-99-like “&amp;amp;#8201;” which differentiates opening and closing quotes. The comic appears to use a handwriting-only slope-variation.&lt;br /&gt;
The straight (ASCII) style is commonly used in programming languages to denote text that is data, rather than code, such as literal messages intended to be displayed to the user.&lt;br /&gt;
&lt;br /&gt;
Word processors commonly implement “smart quotes” by detecting the use of the single-type keyboard character at each end of a possible quote and converting it into the fancier left/right versions (though this is not always desired, leading to the default behaviour being disabled or reverted).&lt;br /&gt;
|Typical form of quotation marks. Quotation marks are most often used in literature to mark dialogue (words said by characters talking) as opposed to descriptions or narrative. Some languages or communities use different typographical conventions such as „German quotation marks“. See also below for British and French conventions.&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;span style=&amp;quot;display:inline-block; transform:scaleX(-1);&amp;quot;&amp;gt;‵&amp;lt;/span&amp;gt; ‵&lt;br /&gt;
|Someone British is talking&lt;br /&gt;
|[https://www.grammarly.com/blog/single-vs-double-quotes/ Allegedly 'British quotation marks'], although this may be disputed by actual Brits who were taught otherwise. Single quotes might be more often used as '{{w|scare quotes}}' or a related form of '&amp;lt;em&amp;gt;emphasis&amp;lt;/em&amp;gt;' marker. One possible distinction is that single-quotes give non-literal paraphrasing, wherever double-quotes are used for the verbatim reporting of words (spoken or written).&lt;br /&gt;
&lt;br /&gt;
In programming languages single quotes are used for diverse purposes. In C and Pascal families they are used to delimit single characters as opposed to strings of characters, which use double quotes. In many scripting languages like Unix shells, Perl, Python, JavaScript and others single quotes are used for strings as an alternative for double quotes, in some cases with different rules for interpreting the contents of such string. In Visual Basic single quotes (unpaired) are used to mark comments. There are other uses, depending on the language.&lt;br /&gt;
&lt;br /&gt;
As with the double quotes above, the comic versions appear to be handwriting-specific, with no easy-to-use equivalents in commonly used computer fonts.&lt;br /&gt;
|Alternative form of quotation marks. Some British media use these to mark dialogue, for historic reasons, though in modern usage the double quotes may be more common [https://www.sussex.ac.uk/informatics/punctuation/quotes/marks and acceptable]. &lt;br /&gt;
&lt;br /&gt;
Single quotes within double quotes (and/or double quotes within single, as necessary) can also be used to more clearly indicate reported words as part of an outer quote, i.e. when you're quoting one person and their statement contains a quote of someone else. The main quotation would be surrounded with double quotes, while the nested quotation is delimited with single quotes (or vice-versa, depending upon the house style in use). This may even be further alternated to arbitrary depth!&lt;br /&gt;
|-&lt;br /&gt;
|‹ ›&lt;br /&gt;
|An Animorph is talking&lt;br /&gt;
|{{w|Bracket#Angle_brackets|Angle brackets}}. Aside from telepathic speech in prose, it's often used in comics to indicate that a character is speaking a foreign language that has been translated for the reader's benefit – at least notionally. Angle brackets are heavily used in {{w|HTML}} as markup tags to define how the source of websites intends to convey various stylistic and/or semantic distinctions.&lt;br /&gt;
|Books like the series {{w|Animorphs}} or science fiction novels use these when a character is communicating nonverbally, for example via telepathy. In the ''Animorphs'' series, this is called [https://animorphs.fandom.com/wiki/Thought-speak thought-speak], or sometimes &amp;quot;thought speech&amp;quot;.&lt;br /&gt;
|-&lt;br /&gt;
|« »&lt;br /&gt;
|A French Animorph is talking&lt;br /&gt;
|French quotation marks. Used for quotes within quotes in some languages. For quoting conventions in different languages, see [https://op.europa.eu/en/web/eu-vocabularies/formex/physical-specifications/character-encoding/use-of-quotation-marks-in-the-different-languages this document].&lt;br /&gt;
|These symbols are called &amp;quot;guillemets&amp;quot; (ghee-ya-may) and are used in French texts as the first-level quotes. Here Randall is mixing the SF convention described above with actual French use.&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;nowiki&amp;gt;|&amp;lt;/nowiki&amp;gt; &amp;amp;#124;&lt;br /&gt;
|I'm scared of negative numbers but these sigils will protect me&lt;br /&gt;
|Vertical bars in mathematics are used for the {{w|Absolute value}} function.&lt;br /&gt;
|The absolute value of a number is its value with all negative and positive signs stripped off; in practical terms this is used to ensure a given value is positive (ex. &amp;lt;nowiki&amp;gt;|-10| = 10&amp;lt;/nowiki&amp;gt;). If for whatever reason you need to &amp;quot;protect&amp;quot; your equations from negative numbers (which does come up in programming from time to time) the absolute value function has you covered &amp;amp;mdash; though it may not always be denoted with vertical bars. {{w|Sigil}}s are symbols used in magic, often for protection from evil.&lt;br /&gt;
|-&lt;br /&gt;
|*&amp;amp;#8201;* _&amp;amp;#8201;_ /&amp;amp;#8201;/&lt;br /&gt;
|I have a favorite monospaced font&lt;br /&gt;
|These symbols are conventionally used in text-based computer communications (such as emails, chats, Usenet News articles) to denote *bold*, _underlined_ or /italic/ font; some client programs interpret them and display actual bold text etc.&lt;br /&gt;
|The kind of person who uses these symbols is the kind of person who uses a {{w|terminal emulator}}, which allows users to select one's favorite (preferably monospace) font. A {{w|Monospace font}} is a font (set of shapes used for letters, numbers and symbols) in which every character has the same width, unlike a {{w|Typeface#Proportional_font|variable-width (proportional) font}}, in which, for example, the letter I is much narrower than W. While a proportional font is more pleasant to read,{{citation needed}} monospace is easier to represent in simple mechanical or electronic devices, and has been used almost exclusively in the advent of computer technology, specifically in text-only environments such as {{w|computer terminals}}; these most often had only one bare-bones font that did not provide separate glyphs for different styles of character (weight, slant) or the ability to superimpose characters (directly adding underlines).&lt;br /&gt;
|-&lt;br /&gt;
|~~&lt;br /&gt;
|I'm being sarcastic and I had a Tumblr account in 2014&lt;br /&gt;
|Used in the [https://www.markdownguide.org/extended-syntax/#strikethrough markdown specification] to denote text with a horizontal line through it, known as &amp;quot;strikethrough&amp;quot;. Used by most places that implement the markdown spec, such as Discord, Reddit, most wikis, Github and Tumblr.&lt;br /&gt;
|Strikethrough markup can be found on sites like Tumblr, Reddit or Discord to indicate that you didn't really mean something you said, and such usage peaked in the mid-2010s. This could also reference the trend of putting tildes after words or sentences to indicate the words are being said in a lilting or sing-song manner, or to indicate it is being said in a cute, nice, seductive timbre or as a particular part of a subcultural reference, e.g. in {{w|Furry fandom}}. Applied to a chosen username, it may be made to make it stand out, or else add sufficiently uniqueness despite the core name being likely to be in common use.&lt;br /&gt;
|-&lt;br /&gt;
|[([{()}],)]&lt;br /&gt;
|These Python functions are not getting along&lt;br /&gt;
|The square brackets denote a mutable [https://docs.python.org/3/tutorial/introduction.html#lists list], the round brackets an immutable [https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences tuple] , and the curly brackets a [https://docs.python.org/3/tutorial/datastructures.html#sets set]. It is valid to have them nested like this. [] could also be a slice (a bit of a list or tuple) and {} could be a [https://docs.python.org/3/tutorial/datastructures.html#dictionaries dictionary], but the syntax is wrong for these. &lt;br /&gt;
|Passing the output from one function to the input of another will sometimes require putting it in a container or changing what type of container it is in. This is an extreme and unrealistic example where the next function might need the data put into a very complex structure. This may be an example of spaghetti code - code that is badly maintained or written in programming languages including Python will often be badly organized creating a mess of indentations and brackets.&lt;br /&gt;
|-&lt;br /&gt;
|⌊ ⌋&lt;br /&gt;
|Help, I'm a mathematician trying to work with actual numbers and they're scary&lt;br /&gt;
|Mathematical symbols meaning &amp;quot;floor&amp;quot; (i.e., round down to the nearest lower integer).&lt;br /&gt;
|Mathematicians stereotypically prefer to work with abstract symbols and concepts rather than numbers or indeed anything that might pertain to the real world. When presented with an &amp;quot;actual&amp;quot; ({{w|real number|real}}) number, it is possible that a mathematician may wish for it to be rounded to the nearest integer to make it simpler, or handle it using {{w|number theory}}.&lt;br /&gt;
|-&lt;br /&gt;
|∫ &amp;amp;nbsp;&amp;lt;span style=&amp;quot;display:inline-block; transform:scaleX(-1);&amp;quot;&amp;gt;∫&amp;lt;/span&amp;gt;&lt;br /&gt;
|Why are you trying to read my violin?&lt;br /&gt;
|This is a joke item created by Randall; these symbols are not used as brackets.&lt;br /&gt;
&lt;br /&gt;
∫ looks like the {{w|Integral symbol}} which itself is derived from a {{w|Long s}}. In mathematics it is usually paired with the differential of the variable of integration (e.g., dx). The symbol also looks like a lowercase {{w|Esh (letter)|esh}} (ʃ), used in phonetic transcription. There is no unicode symbol for a reversed integral (we have displayed it here as a reversed ∫) and it does not appear in Western mathematics typesetting &amp;amp;mdash; though it does appear in mathematical texts written in Arabic, along with other symbols likewise adapted to Arabic's right-to-left writing direction. The esh symbol has a reversed counterpart in Unicode, but it's quite a bit shorter (ʅ). &lt;br /&gt;
|Violins are known for their characteristic {{w|F-hole}}s.&amp;lt;br&amp;gt; This symbol also resembles the top halves of a pair of curly braces (⎰ and ⎱).&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;nowiki&amp;gt;| ⟩&amp;lt;/nowiki&amp;gt;&lt;br /&gt;
|Don't stop here–this is quantum country&lt;br /&gt;
|This  {{w|Bra–ket notation|notation is used in quantum mechanics}} to notate a vector. This is called a ket, and the mirrored sign &amp;lt;nowiki&amp;gt;⟨|&amp;lt;/nowiki&amp;gt; is called a bra. Combining them as bra-ket gives the inner product &amp;lt;nowiki&amp;gt;⟨|⟩&amp;lt;/nowiki&amp;gt;.&lt;br /&gt;
| This is paraphrasing the movie ''{{w|Fear and Loathing in Las Vegas (film)|Fear and Loathing in Las Vegas}}'', where {{w|Johnny Depp}}'s character Raoul Duke says &amp;quot;We can't stop here, this is bat country!&amp;quot; while hallucinating violently on drugs, though not as violently as later in the movie.&lt;br /&gt;
|}&lt;br /&gt;
&amp;lt;!-- Title text --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The title text includes different kinds of quotes, including the ASCII &amp;quot; and ' as well as the Unicode “ and ” (which have both an opening and closing version).&lt;br /&gt;
By default, iOS uses the latter curly quotes, while Windows uses the former straight quotes (an OS-level application of the “smart quotes” described above). Editing the same text on both an iPhone and a Windows computer, in circumstances with a different approach to such general auto-replacement, can leave both types of quotes in the text.&lt;br /&gt;
&lt;br /&gt;
Parentheses are a running joke on XKCD. Previous parenthetical comics include:&lt;br /&gt;
* [[297: Lisp Cycles]] - referencing the Lisp programming language's use of parentheses&lt;br /&gt;
* [[312: With Apologies to Robert Frost]] - the punchline is a close parenthesis&lt;br /&gt;
* [[541: TED Talk]] - about ending parenthetical statements with emoticons&lt;br /&gt;
* [[859: (]] - which has an open parenthesis with none to close it&lt;br /&gt;
* [[1052: Every Major's Terrible]] - making fun of Computer Science as a major for its tedious use of matching parentheses&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:Bracket Symbols&lt;br /&gt;
:and what they mean&lt;br /&gt;
&lt;br /&gt;
:( ) Regular parentheses for setting stuff aside&lt;br /&gt;
&lt;br /&gt;
:[ ] Square brackets (more secure)&lt;br /&gt;
&lt;br /&gt;
:{ } This stuff is expensive so be careful with it&lt;br /&gt;
&lt;br /&gt;
:&amp;quot; &amp;quot; Someone is talking&lt;br /&gt;
&lt;br /&gt;
:' ' Someone British is talking&lt;br /&gt;
&lt;br /&gt;
:‹ › An Animorph is talking&lt;br /&gt;
&lt;br /&gt;
:« » A French Animorph is talking&lt;br /&gt;
&lt;br /&gt;
:| | I'm scared of negative numbers but these sigils will protect me&lt;br /&gt;
&lt;br /&gt;
:&amp;lt;nowiki&amp;gt;*&amp;lt;/nowiki&amp;gt; * _ _ / / I have a favorite monospaced font&lt;br /&gt;
&lt;br /&gt;
:~ ~ I'm being sarcastic and I had a Tumblr account in 2014&lt;br /&gt;
&lt;br /&gt;
:[ ( [ { ( ) } ] , ) ] These Python functions are '''''not''''' getting along&lt;br /&gt;
&lt;br /&gt;
:⌊ ⌋ Help, I'm a mathematician trying to work with actual numbers and they're scary&lt;br /&gt;
&lt;br /&gt;
:ʃ ʅ Why are you trying to read my violin?&lt;br /&gt;
&lt;br /&gt;
:| ⟩ Don't stop here--this is quantum country&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Language]]&lt;br /&gt;
[[Category:Math]]&lt;br /&gt;
[[Category:Programming]]&lt;br /&gt;
[[Category:Animorphs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2951:_Bad_Map_Projection:_Exterior_Kansas&amp;diff=380600</id>
		<title>2951: Bad Map Projection: Exterior Kansas</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2951:_Bad_Map_Projection:_Exterior_Kansas&amp;diff=380600"/>
				<updated>2025-06-29T16:46:47Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Remove irrelevant detail&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2951&lt;br /&gt;
| date      = June 26, 2024&lt;br /&gt;
| title     = Bad Map Projection: Exterior Kansas&lt;br /&gt;
| image     = bad_map_projection_exterior_kansas_2x.png&lt;br /&gt;
| imagesize = 740x706px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Although Kansas is widely thought to contain the geographic center of the contiguous 48 states, topologists now believe that it's actually their outer edge.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This is the seventh comic in the series of [[:Category:Bad Map Projections|Bad Map Projections]] displaying Bad Map Projection  #45: Exterior Kansas. It came about 11 months after the sixth [[2807: Bad Map Projection: ABS(Longitude)]] (#152), and was followed 3.5 months later by [[2999: Bad Map Projection: The United Stralia]] (#102).&lt;br /&gt;
&lt;br /&gt;
[[File:Exterior_Kansas_Azimuthal_Projection.png|thumb|left|Projection of the world from the same perspective as the comic. This uses an azimuthal equidistant projection, so distances from the center point (39°50′S 98°35′E) are correct but areas are distorted.]]&lt;br /&gt;
&lt;br /&gt;
This comic portrays an unusual projection of a map of the contiguous United States based loosely on an {{w|azimuthal projection}}. Maps of individual countries are common, especially in academic settings. It is typical for such maps, which only display a limited area of the globe, to use a projection that does not severely distort the shape of the country or its internal borders, but a country that is large enough (as with the United States) will always noticeably suffer from certain distortions of at least one element chosen from distances, areas or angles. This usually occurs at its extremities (though some projections can be made more faithful to its extremities at the expense of distorting its interior). &lt;br /&gt;
&lt;br /&gt;
Here, however, [[Randall]] has opted for a much different projection. Rather than placing the geographical center of the country in the middle and the borders on the outside, this map has gone the opposite direction, with the border of the US toward the center, and the geographical center of the contiguous US (Kansas) and surrounding states distorted to surround the entire map. This, understandably, results in the shape of both the national and state borders being largely unrecognizable as it effectively puts ''every'' bit of the chosen map features out towards the distorted extremities. Much of the internal area of Kansas itself (should one wish to display further internal features) may be located far beyond the comic's edges, perhaps even to infinitely far away on the projected plane.&lt;br /&gt;
&lt;br /&gt;
[[File:Azimuthal_equidistant_projection_SW.jpg|300px|thumb|right|Polar {{w|azimuthal equidistant projection}}, as on the {{w|flag of the United Nations}}, but with an &amp;quot;exterior Antarctica&amp;quot;]]&lt;br /&gt;
&lt;br /&gt;
If Alaska and Hawaii were present in this map and represented in geographically accurate locations (as opposed to inset, as is common in many maps of the United States), Alaska would in the upper right of the empty space, between Minnesota and Washington, while Hawaii would be in the center to the right, off the coast of California. Both would be rather small, with Hawaii particularly compressed (to an extent dictated by the exact projection method used).&lt;br /&gt;
&lt;br /&gt;
The title text refers to the fact that {{w|Geographic center of the United States#Contiguous United States|the geographic center of the contiguous United States}} is within Kansas. This map projection instead causes Kansas to show up as the exterior of the US, which makes it the outer edge.&lt;br /&gt;
&lt;br /&gt;
The statement that ''topologists now believe it's actually their outer edge'' plays with the notion that map projections influence your perspective on the world, as it is known to be the case with more familiar examples like Mercator vs. Gall-Peters projections, or world maps with the South Pole on top and so on. Similarly, or so the claim goes, any notions of interior and edge may just be a matter of perspective.&lt;br /&gt;
If you were to enclose a small square in four walls, but define this to be the outside, you'd effectively create a roofless building of which the floor area encompasses almost the entire surface of the Earth (minus the small square) - see ''So Long And Thanks For All The Fish'' by Douglas Adams for a classic example of this gag. Randall has always been fond of exploring how map projections influence our perspective both in a parodistic way and by playing it straight, e.g. in: [[503: Terminology]], [[977: Map Projections]], or [[2838: Dubious Islands]]&lt;br /&gt;
&lt;br /&gt;
[[File:now.gif|325px|thumb|left|The map in [[1335: Now]] shows an exterior {{w|Arctic Ocean}} and Antarctica in the center]]&lt;br /&gt;
{{Clear}}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Map description could be improved? Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[A distorted map of the contiguous United States with the states labeled, where the Atlantic and Pacific coasts and the Canadian and Mexican borders are located closest to the center, with there being a gray void in the middle of the map, while the central U.S. states are distributed in the edges of the panel, with Kansas being in all of the four corners of the map.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Bad Map Projection #45:&lt;br /&gt;
:Exterior Kansas&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Bad Map Projections]]&lt;br /&gt;
[[Category:US maps]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2946:_1.2_Kilofives&amp;diff=379468</id>
		<title>2946: 1.2 Kilofives</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2946:_1.2_Kilofives&amp;diff=379468"/>
				<updated>2025-06-16T04:15:50Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ This paragraph does nothing to make the comic easier to understand&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2946&lt;br /&gt;
| date      = June 14, 2024&lt;br /&gt;
| title     = 1.2 Kilofives&lt;br /&gt;
| image     = 1 2 kilofives 2x.png&lt;br /&gt;
| imagesize = 256x342px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = 'Oh yeah? Give me 50 milliscore reasons why I should stop.'&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Abraham Lincoln's {{w|Gettysburg Address}} features the phrase &amp;quot;four {{wiktionary|score#Noun|score}} and seven&amp;quot;‍ to refer to 87: a &amp;quot;score&amp;quot; is a group of 20, which literally translates as &amp;quot;four-twenties [and] seven&amp;quot;. This is because English used to count by twenties (and some modern languages, including French still do, at least partially). However, this practice has died off and most English speakers nowadays would not use &amp;quot;score&amp;quot; in such a manner. Inspired by this, [[Cueball]] (possibly representing [[Randall]]) decides to use unusual prefixes to state the population of a town.&lt;br /&gt;
&lt;br /&gt;
{{w|Metric prefix}}es can be added to a unit to scale up or down its magnitude. For example, &amp;quot;{{w|kilo-}}&amp;quot; means &amp;quot;multiply by 1000&amp;quot;, so a {{w|kilometer}} is as long as 1,000 {{w|meter}}s. These prefixes are added to {{w|List of metric units|various metric units}} but, due to their usefulness, have been adopted and added to other, non-metric units, such as &amp;quot;kilocubic feet per second&amp;quot; (for the flow rate of a liquid, much to Randall's chagrin when researching for his book ''[[What If? (book)|What If?]]''), &amp;quot;megadeath&amp;quot; (how many millions killed in an estimated nuclear blast), or the &amp;quot;{{w|Helen (unit)|millihelen}}&amp;quot; (the amount of feminine beauty needed to launch a ship). Most potentially confusing might be &amp;quot;kilo-/mega-/giga-/terabyte&amp;quot;,  which has [[394: Kilobyte|competing definitions]]. However, they're not ordinarily added before number words to change their magnitude.&lt;br /&gt;
&lt;br /&gt;
Taking &amp;quot;kilofive&amp;quot; to be a unit meaning 5,000, the population of East Hills, 6,000, can therefore be expressed as 1.2 kilofives. But phrasing a number this way requires the listener to make excess calculations to understand it, so [[White Hat]] would probably get confused or annoyed.&lt;br /&gt;
&lt;br /&gt;
In the title text, Cueball has apparently annoyed White Hat with his confusing expressions of numbers, but he doubles down, now directly including the word &amp;quot;score&amp;quot;. He is riffing on the common expression, &amp;quot;give me one reason why...&amp;quot; but instead of simply asking for one reason, he asks for 50 milliscore reasons, or 50 &amp;amp;times; 1&amp;amp;frasl;1000 &amp;amp;times; 20, which is equal to 1.&lt;br /&gt;
&lt;br /&gt;
The comic might refer to the village of {{w|East Hills, New York}}. As of the 2020 census, it had a population of 7,284, or 1.214 kilosixes.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
In Roman numerals, {{w|Roman_numerals#Large_numbers|symbols can be added to numerals}} to denote orders of magnitude. In this system, 1,000 might be written as &amp;quot;CIↃ&amp;quot;. This rough pattern of marks, as typically chisled or impressed into wax by a stylus, would later be refined and expressed in the not dissimilar shape of the &amp;quot;M&amp;quot; as most often seen these days to represent the thousands value in dates/etc. Alternately &amp;quot;I&amp;quot; (nominally '1') could be given a bar above it, as would any other such numerals involve in that expression, to indicate the value being denoted being of the higher order.&lt;br /&gt;
&lt;br /&gt;
For a while, {{w|Long hundred| a hundred actually referred to 120}}.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball, with his palm raised, is talking to White Hat. There is a sign on the ground in the background.]&lt;br /&gt;
:Cueball: It's a pretty small town—the population is just 1.2 kilofives.&lt;br /&gt;
:[The sign reads:]&lt;br /&gt;
:&amp;lt;small&amp;gt;Welcome to&amp;lt;/small&amp;gt;&lt;br /&gt;
:East Hills&lt;br /&gt;
:&amp;lt;small&amp;gt;Pop.&amp;lt;/small&amp;gt; 6,000&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:I don't know why Abraham Lincoln should be the only one who gets to come up with weird ways to say normal numbers. &lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Math]]&lt;br /&gt;
[[Category:Language]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2941:_Cell_Organelles&amp;diff=378977</id>
		<title>2941: Cell Organelles</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2941:_Cell_Organelles&amp;diff=378977"/>
				<updated>2025-06-06T02:00:15Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ capitalization&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2941&lt;br /&gt;
| date      = June 3, 2024&lt;br /&gt;
| title     = Cell Organelles&lt;br /&gt;
| image     = cell_organelles_2x.png&lt;br /&gt;
| imagesize = 563x451px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's believed that Golgi was originally an independent organism who was eventually absorbed into our cells, where he began work on his Apparatus.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic shows a {{w|Cell (biology)|biological cell}} diagram with a mix of real and fictional {{w|organelle}}s, giving both accurate {{w|Cell biology|cell biology}} terms and humorous ones. Actual cell components include the nucleus, mitochondria, and Golgi apparatus, while unrelated concepts come from geology, engineering, antivirus software, and even Star Wars. Labels like &amp;quot;evil endoplasmic reticulum&amp;quot; and &amp;quot;sticky endoplasmic reticulum&amp;quot; are variations of real cellular organelles. Other labels like &amp;quot;pith,&amp;quot; &amp;quot;mantle,&amp;quot; and &amp;quot;Vitreous humor,&amp;quot; are borrowed from other types of circular cross-sectional diagrams (e.g., of fruit, planets, and eyeballs).&lt;br /&gt;
&lt;br /&gt;
The title text is a fictional backstory to the {{w|Golgi apparatus}}, an essential cell organelle involved in processing and packaging proteins. It suggests that {{w|Camillo Golgi}}, the scientist who discovered the Golgi apparatus, was originally an independent organism that was supposedly absorbed into our cells, where it then started working on what is now known as the Golgi apparatus. The joke is a satirical take on {{w|Symbiogenesis|endosymbiotic theory}}, which posits that certain organelles within {{w|Eukaryote|eukaryotic}} cells, like {{w|mitochondria}} and {{w|chloroplasts}}, originated from independent symbiotic {{w|Prokaryote|prokaryotic organisms}} that were absorbed by a host {{w|germ cell}}. Golgi is drawn in the comic as a cute little alien.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Label&lt;br /&gt;
! Meaning&lt;br /&gt;
! Real?&lt;br /&gt;
! Cell organelle?&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Smooth endoplasmic reticulum}}&lt;br /&gt;
| A network of tubular membranes within the cytoplasm of the cell, involved in the transport of materials.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| An {{w|endoplasmic reticulum}} is considered &amp;quot;smooth&amp;quot; if it is not covered in ribosomes.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Lithosphere}}&lt;br /&gt;
| The rigid outer part of the earth, consisting of the crust and upper mantle.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Term from geology; part of the Earth's crust. Labeled cross-sectional diagrams of cells and of the layers of the Earth are commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|O-ring}}&lt;br /&gt;
| A mechanical gasket in the shape of a torus; used to seal connections.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Engineering term. Both the o-ring and pith are drawn connected to the inner cell membrane. Made famous in pop culture for being the root cause of the {{w|Space Shuttle Challenger disaster}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Pith}}&lt;br /&gt;
| The central tissue in plants, used for nutrient transport.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Botanical term. Most people think of pith as the layer of soft tissue between the skin and the flesh of citrus fruit, which explains its position in the diagram. Both the pith and o-ring are drawn connected to the inner cell membrane. A layer of pith was recently seen only 101 comics ago, in [[2840: Earth Layers]].&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cell nucleus|Nucleus}}&lt;br /&gt;
| The central and most important part of an object, forming the basis for its activity and growth.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| The cell nucleus is an actual cell organelle which houses {{w|DNA}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Nucleolus}}&lt;br /&gt;
| A small dense spherical structure in the nucleus of a cell during {{w|interphase}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle, involved in {{w|ribosome}} production.&lt;br /&gt;
|-&lt;br /&gt;
| Nucleoloulous&lt;br /&gt;
| Not a real term, albeit a portmanteau of the aforementioned &amp;quot;Nucleus&amp;quot; and &amp;quot;Nucleolus&amp;quot; words&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| A humorous continuation of the terms &amp;quot;nucleus&amp;quot; and &amp;quot;nucleolus&amp;quot;; as the nucleolus does have internal components (such as the fibrillar center). Still, none of the nucleolus's components go by the name &amp;quot;Nucleoloulous&amp;quot;...&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Nucleon}}s&lt;br /&gt;
| Protons and neutrons in the nucleus of an atom.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| While cells contain matter which is supposed to contain nucleons,{{Citation needed}} yet the depicted circles are far larger than actual nucleons.&lt;br /&gt;
|-&lt;br /&gt;
| Drain plug&lt;br /&gt;
| A stopper for a drain.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| A plumbing term, which could refer to a {{w|porosome}}. Even small, temporary damage to the integrity of the {{w|cell membrane}} puts the cell at immediate and great risk of death.&lt;br /&gt;
|-&lt;br /&gt;
| Evil endoplasmic reticulum&lt;br /&gt;
| Not a real term.&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| The rough endoplasmic reticulum is covered in ribosomes; the &amp;quot;evil&amp;quot; endoplasmic reticulum in the comic is covered in small spikes, making it evil.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Hypoallergenic}} filling&lt;br /&gt;
| Materials that cause relatively fewer allergic reactions.&lt;br /&gt;
| Yes&lt;br /&gt;
| [[Technically]] not incorrect&lt;br /&gt;
| Consumer product term, used e.g. for pillows and mattresses. If the {{w|cytoplasm}} doesn't cause allergic reactions within the cell, it is hypoallergenic.&lt;br /&gt;
|-&lt;br /&gt;
| Weak spot&lt;br /&gt;
| A vulnerable point.&lt;br /&gt;
| Yes&lt;br /&gt;
| Conceivably&lt;br /&gt;
| {{w|Cell membrane}} surfaces do indeed vary in strength, often due to the presence of organelles such as {{w|ion channel pore}}s or {{w|porosome}}s, both of which can be leveraged by viruses to enter cells.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Mitochondria}}&lt;br /&gt;
| Organelles that generate energy for the cell.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelles. Mitochondria are widely known as the &amp;quot;powerhouse of the cell,&amp;quot; a phrase originally coined in 1957 by biologist {{w|Philip Siekevitz}}[https://www.scientificamerican.com/article/powerhouse-of-the-cell/] which came to prominence online in the mid-2010s.{{acn}}&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Midichlorians}}&lt;br /&gt;
| Fictional microorganisms in the {{w|Star Wars}} universe, which confer Force sensitivity and thereby associated {{w|Jedi}} (and Sith)  powers.&lt;br /&gt;
| No&lt;br /&gt;
| Fictional&lt;br /&gt;
| It's unclear whether {{w|George Lucas}} intended for &amp;quot;midi-chlorians&amp;quot; to be {{w|Symbiogenesis|endosymbiotic organelles}} or internal {{w|Symbiosis|symbionts}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Chloroplast}}s if you're lucky&lt;br /&gt;
| Organelles in plant cells responsible for {{w|photosynthesis}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes, but in plants and plantlike organisms&lt;br /&gt;
| Actual cell organelles, found in plant cells and those of several different lineages of non-plant microorganisms and seaweeds. The phrase &amp;quot;if you're lucky&amp;quot; alludes to the good fortune that an organism, be it plant, animal, or microbe, gains by being able to photosynthesize, getting energy from sunlight, rather than have to run around all the time chasing energy. This benefit makes chloroplasts {{w|Kleptoplasty|worth stealing}}. [https://www.nature.com/articles/s41586-022-05499-y Experiments have been conducted] to transplant components of chloroplasts into mammal cells to slow disease. See also [https://www.gocomics.com/doonesbury/1978/06/26 Zonker Harris].&lt;br /&gt;
|-&lt;br /&gt;
| Human skin&lt;br /&gt;
| The outer covering of the human body.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Skin is a {{w|Tissue_(biology)|tissue}} (multicellular structure). The idea that a complex tissue can be wrapped around a single cell, as if it were a cell wall, or outer {{w|cell membrane}}, or {{w|extracellular matrix}}, is humorously backwards: human skin is made of cells, not the other way around.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Carbonation}}&lt;br /&gt;
| {{w|Carbon dioxide}} dissolved in a liquid.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Carbonation causes soda pop and similar liquids to bubble, fizz, foam, and {{w|effervesce}}. The little dots depicted in the comic look like carbonation bubbles.&lt;br /&gt;
|-&lt;br /&gt;
| Golgi&lt;br /&gt;
| {{w|Camillo Golgi}} (1843–1926) was an Italian biologist and {{w|pathologist}} who discovered the Golgi apparatus; known also for his works on the central nervous system.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| The real Golgi was not and is not a tiny alien being who merged with our cells,{{Citation needed}} as the comic and title text imply. While the mitochondria and chloroplast may have been evolved in such a manner (through being consumed by a host cell), this is not considered the case for the Golgi apparatus.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Golgi apparatus}}&lt;br /&gt;
| A complex of {{w|vesicles}} and folded membranes involved in secretion and intracellular transport.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle, which takes {{w|polypeptide}} chains from the rough endoplasmic reticulum via transport vesicles and processes them into their protein structure before sending them (again via vesicles) to their destination such as an organelle or outside of the cell.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Norton AntiVirus}}&lt;br /&gt;
| A software product designed to protect computers from malware.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Viruses do attempt to insert themselves into cells, and many cell types do have antiviral mechanisms (notably the {{w|CRISPR}} (Clustered Regularly Interspaced Short Palindromic Repeats) DNA sequences in prokaryotes, which resist viral (bacteriophage) infection - however, the cell shown is not prokaryotic, since it contains a nucleus). A system designed to protect against computer viruses is unlikely to be helpful, though, since biological viruses are completely different, and cells have not been architected to support such software. &lt;br /&gt;
|-&lt;br /&gt;
| Sticky endoplasmic reticulum&lt;br /&gt;
| Not a real term, although parts of the reticula have sticky pockets.[https://www.frontiersin.org/articles/10.3389/fcell.2023.1156152/full]&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| Another humorous twist on the actual types of endoplasmic reticula.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Pleiades}}&lt;br /&gt;
| A cluster of stars in the constellation Taurus.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Even a single star is far too big to fit in a cell.{{Citation needed}} The labeled cluster in the comic looks like the actual constellation, as if this were a depiction of the night sky.&lt;br /&gt;
|-&lt;br /&gt;
| Natural flavor&lt;br /&gt;
| Flavoring derived from natural sources.&lt;br /&gt;
| Yes&lt;br /&gt;
| Conceivably&lt;br /&gt;
| A common ingredient on food labels (and sometimes cosmetics, etc.), usually meaning any substance to add flavor, aroma, or both, other than synthetic chemicals which are referred to as artificial flavors.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cellophane}}&lt;br /&gt;
| A thin, transparent sheet made of regenerated {{w|cellulose}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| A type of packaging material. A {{w|cell wall}} is indeed made of cellulose, though not in the form of cellophane. Also, this drawing looks more like an animal cell (albeit a very odd one), which unlike plants and fungi, do not usually have a cell wall.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Rough endoplasmic reticulum}}&lt;br /&gt;
| Endoplasmic reticulum with {{w|ribosomes}} attached, involved in protein synthesis.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle. &amp;quot;Rough&amp;quot; refers to the presence of ribosomes covering its membrane, which translate {{w|messenger RNA}} into polypeptide chains. Normally the endoplasmic reticulum would wrap around the cell nucleus (as the nuclear envelope is itself a specialized part of the rough endoplasmic reticulum).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Ventricle}}&lt;br /&gt;
| A chamber of the heart that pumps blood out.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Ventricles are actually part of the body, and they are composed of many cells. Possibly a pun on {{w|vesicle}} (or {{w|vacuole}}), a small membrane-enclosed vessel, such as the transport vesicles that carry polypeptides from the rough endoplasmic reticulum to the Golgi apparatus for processing.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Mantle}} &amp;lt;!-- intentionally left linking to disambiguation page --&amp;gt;&lt;br /&gt;
| The layer of the earth between the crust and the core.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Misplaced geological term with many other meanings. Labeled cross-sectional diagrams of the layers of the Earth are commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Slime}}&lt;br /&gt;
| A moist, soft, and slippery substance, or a brand name for a {{w|Slime_(toy)|goopy substance sold as a toy}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Could refer to the slimy texture and appearance of {{w|cytoplasm}}, but not specific to cells. Slime was a frequent appearance on the Nickelodeon TV kids channel during [[Randall]]'s youth in the 90s (a signature aspect of the network, it was introduced when Nickelodeon became the American home of the Canadian kids' show {{w|You Can't Do That on Television}}, which had a running gag of dumping green slime on anyone who said &amp;quot;I don't know&amp;quot;).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Vitreous humour}}&lt;br /&gt;
| The clear gel that fills the space between the lens and the retina in the eyeball.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| The vitreous humour is in the eye's {{w|extracellular matrix}}, not inside cells. Labeled cross-sectional diagrams of eyes are also commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Seed}}s&lt;br /&gt;
| Plant embryos used for reproduction.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Seeds are multicellular, and sometimes contain small proportions of non-cellular tissue. Cells are found in seeds, not the other way around. Seeds would be labeled on a cross-sectional diagram of a fruit, not a cell.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
Cell Organelles&lt;br /&gt;
[A cell is shown with the following structures and areas labeled, counter-clockwise from upper left:]&lt;br /&gt;
&lt;br /&gt;
* Smooth endoplasmic reticulum&lt;br /&gt;
* Lithosphere&lt;br /&gt;
* O-Ring&lt;br /&gt;
* Pith&lt;br /&gt;
* Nucleus&lt;br /&gt;
* Nucleolus&lt;br /&gt;
* Nucleoloulous&lt;br /&gt;
* Nucleons&lt;br /&gt;
* Drain plug&lt;br /&gt;
* Evil endoplasmic reticulum&lt;br /&gt;
* Hypoallergenic filling&lt;br /&gt;
* Weak spot&lt;br /&gt;
* Mitochondria&lt;br /&gt;
* Midichlorians&lt;br /&gt;
* Chloroplasts if you're lucky&lt;br /&gt;
* Human skin&lt;br /&gt;
* Carbonation&lt;br /&gt;
* Golgi&lt;br /&gt;
* Golgi apparatus&lt;br /&gt;
* Norton AntiVirus&lt;br /&gt;
* Sticky endoplasmic reticulum&lt;br /&gt;
* Pleiades&lt;br /&gt;
* Natural flavor&lt;br /&gt;
* Cellophane&lt;br /&gt;
* Rough endoplasmic reticulum&lt;br /&gt;
&lt;br /&gt;
[These labels are inside the cell:]&lt;br /&gt;
&lt;br /&gt;
* Ventricle&lt;br /&gt;
* Mantle&lt;br /&gt;
* Slime&lt;br /&gt;
* Vitreous humour&lt;br /&gt;
* Seeds&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Biology]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2941:_Cell_Organelles&amp;diff=378976</id>
		<title>2941: Cell Organelles</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2941:_Cell_Organelles&amp;diff=378976"/>
				<updated>2025-06-06T01:55:15Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ No need to repeat. Also, no need to repeat.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2941&lt;br /&gt;
| date      = June 3, 2024&lt;br /&gt;
| title     = Cell Organelles&lt;br /&gt;
| image     = cell_organelles_2x.png&lt;br /&gt;
| imagesize = 563x451px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's believed that Golgi was originally an independent organism who was eventually absorbed into our cells, where he began work on his Apparatus.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This comic shows a {{w|Cell (biology)|biological cell}} diagram with a mix of real and fictional {{w|organelle}}s, giving both accurate {{w|Cell biology|cell biology}} terms and humorous ones. Actual cell components include the nucleus, mitochondria, and Golgi apparatus, while unrelated concepts come from geology, engineering, antivirus software, and even Star Wars. Labels like &amp;quot;evil endoplasmic reticulum&amp;quot; and &amp;quot;sticky endoplasmic reticulum&amp;quot; are variations of real cellular organelles. Other labels like &amp;quot;pith,&amp;quot; &amp;quot;mantle,&amp;quot; and &amp;quot;Vitreous humor,&amp;quot; are borrowed from other types of circular cross-sectional diagrams (e.g., of fruit, planets, and eyeballs).&lt;br /&gt;
&lt;br /&gt;
The title text is a fictional backstory to the {{w|Golgi apparatus}}, an essential cell organelle involved in processing and packaging proteins. It suggests that {{w|Camillo Golgi}}, the scientist who discovered the Golgi apparatus, was originally an independent organism that was supposedly absorbed into our cells, where it then started working on what is now known as the Golgi apparatus. The joke is a satirical take on {{w|Symbiogenesis|endosymbiotic theory}}, which posits that certain organelles within {{w|Eukaryote|eukaryotic}} cells, like {{w|mitochondria}} and {{w|chloroplasts}}, originated from independent symbiotic {{w|Prokaryote|prokaryotic organisms}} that were absorbed by a host {{w|germ cell}}. Golgi is drawn in the comic as a cute little alien.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Label&lt;br /&gt;
! Meaning&lt;br /&gt;
! Real?&lt;br /&gt;
! Cell organelle?&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Smooth endoplasmic reticulum}}&lt;br /&gt;
| A network of tubular membranes within the cytoplasm of the cell, involved in the transport of materials.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| An {{w|endoplasmic reticulum}} is considered &amp;quot;smooth&amp;quot; if it is not covered in ribosomes.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Lithosphere}}&lt;br /&gt;
| The rigid outer part of the earth, consisting of the crust and upper mantle.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Term from geology; part of the Earth's crust. Labeled cross-sectional diagrams of cells and of the layers of the Earth are commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|O-ring}}&lt;br /&gt;
| A mechanical gasket in the shape of a torus; used to seal connections.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Engineering term. Both the o-ring and pith are drawn connected to the inner cell membrane. Made famous in pop culture for being the root cause of the {{w|Space Shuttle Challenger disaster}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Pith}}&lt;br /&gt;
| The central tissue in plants, used for nutrient transport.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Botanical term. Most people think of pith as the layer of soft tissue between the skin and the flesh of citrus fruit, which explains its position in the diagram. Both the pith and o-ring are drawn connected to the inner cell membrane. A layer of pith was recently seen only 101 comics ago, in [[2840: Earth Layers]].&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cell nucleus|Nucleus}}&lt;br /&gt;
| The central and most important part of an object, forming the basis for its activity and growth.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| The cell nucleus is an actual cell organelle which houses {{w|DNA}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Nucleolus}}&lt;br /&gt;
| A small dense spherical structure in the nucleus of a cell during {{w|interphase}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle, involved in {{w|ribosome}} production.&lt;br /&gt;
|-&lt;br /&gt;
| Nucleoloulous&lt;br /&gt;
| Not a real term, albeit a portmanteau of the aforementioned &amp;quot;Nucleus&amp;quot; and &amp;quot;Nucleolus&amp;quot; words&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| A humorous continuation of the terms &amp;quot;nucleus&amp;quot; and &amp;quot;nucleolus&amp;quot;; as the nucleolus does have internal components (such as the fibrillar center). Still, none of the nucleolus's components go by the name &amp;quot;Nucleoloulous&amp;quot;...&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Nucleon}}s&lt;br /&gt;
| Protons and neutrons in the nucleus of an atom.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| While cells contain matter which is supposed to contain nucleons,{{Citation needed}} yet the depicted circles are far larger than actual nucleons.&lt;br /&gt;
|-&lt;br /&gt;
| Drain plug&lt;br /&gt;
| A stopper for a drain.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| A plumbing term, which could refer to a {{w|porosome}}. Even small, temporary damage to the integrity of the {{w|cell membrane}} puts the cell at immediate and great risk of death.&lt;br /&gt;
|-&lt;br /&gt;
| Evil endoplasmic reticulum&lt;br /&gt;
| Not a real term.&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| The rough endoplasmic reticulum is covered in ribosomes; the &amp;quot;evil&amp;quot; endoplasmic reticulum in the comic is covered in small spikes, making it evil.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Hypoallergenic}} filling&lt;br /&gt;
| Materials that cause relatively fewer allergic reactions.&lt;br /&gt;
| Yes&lt;br /&gt;
| [[Technically]] not incorrect&lt;br /&gt;
| Consumer product term, used e.g. for pillows and mattresses. If the {{w|cytoplasm}} doesn't cause allergic reactions within the cell, it is hypoallergenic.&lt;br /&gt;
|-&lt;br /&gt;
| Weak spot&lt;br /&gt;
| A vulnerable point.&lt;br /&gt;
| Yes&lt;br /&gt;
| Conceivably&lt;br /&gt;
| {{w|Cell membrane}} surfaces do indeed vary in strength, often due to the presence of organelles such as {{w|ion channel pore}}s or {{w|porosome}}s, both of which can be leveraged by viruses to enter cells.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Mitochondria}}&lt;br /&gt;
| Organelles that generate energy for the cell.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelles. Mitochondria are widely known as the &amp;quot;powerhouse of the cell,&amp;quot; a phrase originally coined in 1957 by biologist {{w|Philip Siekevitz}}[https://www.scientificamerican.com/article/powerhouse-of-the-cell/] which came to prominence online in the mid-2010s.{{acn}}&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Midichlorians}}&lt;br /&gt;
| Fictional microorganisms in the {{w|Star Wars}} universe, which confer Force sensitivity and thereby associated {{w|Jedi}} (and Sith)  powers.&lt;br /&gt;
| No&lt;br /&gt;
| Fictional&lt;br /&gt;
| It's unclear whether {{w|George Lucas}} intended for &amp;quot;midi-chlorians&amp;quot; to be {{w|Symbiogenesis|endosymbiotic organelles}} or internal {{w|Symbiosis|symbionts}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Chloroplast}}s if you're lucky&lt;br /&gt;
| Organelles in plant cells responsible for {{w|photosynthesis}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes, but in plants and plantlike organisms&lt;br /&gt;
| Actual cell organelles, found in plant cells and those of several different lineages of non-plant microorganisms and seaweeds. The phrase &amp;quot;if you're lucky&amp;quot; alludes to the good fortune that an organism, be it plant, animal, or microbe, gains by being able to photosynthesize, getting energy from sunlight, rather than have to run around all the time chasing energy. This benefit makes chloroplasts {{w|Kleptoplasty|worth stealing}}. [https://www.nature.com/articles/s41586-022-05499-y Experiments have been conducted] to transplant components of chloroplasts into mammal cells to slow disease. See also [https://www.gocomics.com/doonesbury/1978/06/26 Zonker Harris].&lt;br /&gt;
|-&lt;br /&gt;
| Human skin&lt;br /&gt;
| The outer covering of the human body.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Skin is a {{w|Tissue_(biology)|tissue}} (multicellular structure). The idea that a complex tissue can be wrapped around a single cell, as if it were a cell wall, or outer {{w|cell membrane}}, or {{w|extracellular matrix}}, is humorously backwards: human skin is made of cells, not the other way around.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Carbonation}}&lt;br /&gt;
| {{w|Carbon dioxide}} dissolved in a liquid.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Carbonation causes soda pop and similar liquids to bubble, fizz, foam, and {{w|effervesce}}. The little dots depicted in the comic look like carbonation bubbles.&lt;br /&gt;
|-&lt;br /&gt;
| Golgi&lt;br /&gt;
| {{w|Camillo Golgi}} (1843–1926) was an Italian biologist and {{w|pathologist}} who discovered the Golgi apparatus; known also for his works on the central nervous system.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| The real Golgi was not and is not a tiny alien being who merged with our cells,{{Citation needed}} as the comic and title text imply. While the mitochondria and chloroplast may have been evolved in such a manner (through being consumed by a host cell), this is not considered the case for the golgi apparatus.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Golgi apparatus}}&lt;br /&gt;
| A complex of {{w|vesicles}} and folded membranes involved in secretion and intracellular transport.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle, which takes {{w|polypeptide}} chains from the rough endoplasmic reticulum via transport vesicles and processes them into their protein structure before sending them (again via vesicles) to their destination such as an organelle or outside of the cell.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Norton AntiVirus}}&lt;br /&gt;
| A software product designed to protect computers from malware.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Viruses do attempt to insert themselves into cells, and many cell types do have antiviral mechanisms (notably the {{w|CRISPR}} (Clustered Regularly Interspaced Short Palindromic Repeats) DNA sequences in prokaryotes, which resist viral (bacteriophage) infection - however, the cell shown is not prokaryotic, since it contains a nucleus). A system designed to protect against computer viruses is unlikely to be helpful, though, since biological viruses are completely different, and cells have not been architected to support such software. &lt;br /&gt;
|-&lt;br /&gt;
| Sticky endoplasmic reticulum&lt;br /&gt;
| Not a real term, although parts of the reticula have sticky pockets.[https://www.frontiersin.org/articles/10.3389/fcell.2023.1156152/full]&lt;br /&gt;
| No&lt;br /&gt;
| No&lt;br /&gt;
| Another humorous twist on the actual types of endoplasmic reticula.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Pleiades}}&lt;br /&gt;
| A cluster of stars in the constellation Taurus.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Even a single star is far too big to fit in a cell.{{Citation needed}} The labeled cluster in the comic looks like the actual constellation, as if this were a depiction of the night sky.&lt;br /&gt;
|-&lt;br /&gt;
| Natural flavor&lt;br /&gt;
| Flavoring derived from natural sources.&lt;br /&gt;
| Yes&lt;br /&gt;
| Conceivably&lt;br /&gt;
| A common ingredient on food labels (and sometimes cosmetics, etc.), usually meaning any substance to add flavor, aroma, or both, other than synthetic chemicals which are referred to as artificial flavors.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cellophane}}&lt;br /&gt;
| A thin, transparent sheet made of regenerated {{w|cellulose}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| A type of packaging material. A {{w|cell wall}} is indeed made of cellulose, though not in the form of cellophane. Also, this drawing looks more like an animal cell (albeit a very odd one), which unlike plants and fungi, do not usually have a cell wall.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Rough endoplasmic reticulum}}&lt;br /&gt;
| Endoplasmic reticulum with {{w|ribosomes}} attached, involved in protein synthesis.&lt;br /&gt;
| Yes&lt;br /&gt;
| Yes&lt;br /&gt;
| Actual cell organelle. &amp;quot;Rough&amp;quot; refers to the presence of ribosomes covering its membrane, which translate {{w|messenger RNA}} into polypeptide chains. Normally the endoplasmic reticulum would wrap around the cell nucleus (as the nuclear envelope is itself a specialized part of the rough endoplasmic reticulum).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Ventricle}}&lt;br /&gt;
| A chamber of the heart that pumps blood out.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Ventricles are actually part of the body, and they are composed of many cells. Possibly a pun on {{w|vesicle}} (or {{w|vacuole}}), a small membrane-enclosed vessel, such as the transport vesicles that carry polypeptides from the rough endoplasmic reticulum to the Golgi apparatus for processing.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Mantle}} &amp;lt;!-- intentionally left linking to disambiguation page --&amp;gt;&lt;br /&gt;
| The layer of the earth between the crust and the core.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Misplaced geological term with many other meanings. Labeled cross-sectional diagrams of the layers of the Earth are commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Slime}}&lt;br /&gt;
| A moist, soft, and slippery substance, or a brand name for a {{w|Slime_(toy)|goopy substance sold as a toy}}.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Could refer to the slimy texture and appearance of {{w|cytoplasm}}, but not specific to cells. Slime was a frequent appearance on the Nickelodeon TV kids channel during [[Randall]]'s youth in the 90s (a signature aspect of the network, it was introduced when Nickelodeon became the American home of the Canadian kids' show {{w|You Can't Do That on Television}}, which had a running gag of dumping green slime on anyone who said &amp;quot;I don't know&amp;quot;).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Vitreous humour}}&lt;br /&gt;
| The clear gel that fills the space between the lens and the retina in the eyeball.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| The vitreous humour is in the eye's {{w|extracellular matrix}}, not inside cells. Labeled cross-sectional diagrams of eyes are also commonly found in science textbooks.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Seed}}s&lt;br /&gt;
| Plant embryos used for reproduction.&lt;br /&gt;
| Yes&lt;br /&gt;
| No&lt;br /&gt;
| Seeds are multicellular, and sometimes contain small proportions of non-cellular tissue. Cells are found in seeds, not the other way around. Seeds would be labeled on a cross-sectional diagram of a fruit, not a cell.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
Cell Organelles&lt;br /&gt;
[A cell is shown with the following structures and areas labeled, counter-clockwise from upper left:]&lt;br /&gt;
&lt;br /&gt;
* Smooth endoplasmic reticulum&lt;br /&gt;
* Lithosphere&lt;br /&gt;
* O-Ring&lt;br /&gt;
* Pith&lt;br /&gt;
* Nucleus&lt;br /&gt;
* Nucleolus&lt;br /&gt;
* Nucleoloulous&lt;br /&gt;
* Nucleons&lt;br /&gt;
* Drain plug&lt;br /&gt;
* Evil endoplasmic reticulum&lt;br /&gt;
* Hypoallergenic filling&lt;br /&gt;
* Weak spot&lt;br /&gt;
* Mitochondria&lt;br /&gt;
* Midichlorians&lt;br /&gt;
* Chloroplasts if you're lucky&lt;br /&gt;
* Human skin&lt;br /&gt;
* Carbonation&lt;br /&gt;
* Golgi&lt;br /&gt;
* Golgi apparatus&lt;br /&gt;
* Norton AntiVirus&lt;br /&gt;
* Sticky endoplasmic reticulum&lt;br /&gt;
* Pleiades&lt;br /&gt;
* Natural flavor&lt;br /&gt;
* Cellophane&lt;br /&gt;
* Rough endoplasmic reticulum&lt;br /&gt;
&lt;br /&gt;
[These labels are inside the cell:]&lt;br /&gt;
&lt;br /&gt;
* Ventricle&lt;br /&gt;
* Mantle&lt;br /&gt;
* Slime&lt;br /&gt;
* Vitreous humour&lt;br /&gt;
* Seeds&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Biology]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370483</id>
		<title>2910: The Wreck of the Edmund Fitzgerald</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370483"/>
				<updated>2025-03-26T21:25:50Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ clarity&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2910&lt;br /&gt;
| date      = March 22, 2024&lt;br /&gt;
| title     = The Wreck of the Edmund Fitzgerald&lt;br /&gt;
| image     = the_wreck_of_the_edmund_fitzgerald_2x.png&lt;br /&gt;
| imagesize = 463x672px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You know that asteroid that almost destroyed Earth in the 90s? Turns out the whole thing was secretly created by Michael Bay, who then PAID Bruce Willis and Ben Affleck to look heroic while blowing it up!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic features [[Cueball]] on a pier with a guitar, sharing a conspiracy theory about the origin of {{w|Gordon Lightfoot}}'s song '{{w|The Wreck of the Edmund Fitzgerald|The Wreck of the ''Edmund Fitzgerald''}}'. This song, which was one of the most recognizable and successful of Lightfoot's career, recounts the fate of the {{w|SS Edmund Fitzgerald|SS ''Edmund Fitzgerald''}}, a {{w|Great Lakes}} freighter which famously sank during a storm on {{w|Lake Superior}}, resulting in the deaths of the entire crew.&lt;br /&gt;
&lt;br /&gt;
The song was written only a few months after the incident. In Cueball's version, it was Lightfoot himself who engineered the wreck, in order to provide material for lyrics to fit a tune he'd already composed. Cueball then goes on to suggest that a &amp;quot;young&amp;quot; director {{w|James Cameron}} engineered the much greater maritime disaster, the 1912 {{w|Sinking of the Titanic|sinking of the RMS ''Titanic''}}, so he could create {{w|Titanic (1997 film)|a film about it}} 85 years later (when Cameron was 42 years old).&lt;br /&gt;
&lt;br /&gt;
This theme is carried further in the title text, which suggests that director {{w|Michael Bay}} created an actual asteroid in the 1990s and directed it toward the Earth, in order to provide material for his film ''{{w|Armageddon (1998 film)|Armageddon}}''. However, there was no such asteroid: unlike the other examples, this film was not based on real events.&lt;br /&gt;
&lt;br /&gt;
The first, third, and fourth lines of Cueball's song are identical to the 9th, 11th, and 12th lines of Lightfoot's. Cueball's second line, &amp;quot;It was due to set sail for Cleveland&amp;quot; does not match Lightfoot's 10th, &amp;quot;Coming back from some mill in Wisconsin&amp;quot;, but is closer to Lightfoot's 14th line, &amp;quot;When they left fully loaded for Cleveland&amp;quot;. It is possible that Randall made this change in order to tighten the otherwise fairly loose rhyming scheme of the song. After Cueball's first four lines, his song departs significantly from Lightfoot's.&lt;br /&gt;
&lt;br /&gt;
In real life, the cause of the ship's sinking remains unknown, but it's speculated that the ship's hull broke up in the [https://www.youtube.com/watch?v=wIg90sVSwSE rough waters of a storm.] Lightfoot, who wasn't involved with the ship at all, [https://www.thestar.com/news/canada/the-ship-sank-all-over-again-families-of-victims-in-wreck-recall-gordon-lightfoot/article_8cb6b84d-5576-5344-ba20-d5b06e3370d9.html] devoted considerable time, effort and money to the families of the disaster's victims. In addition, while the comic presents Lightfoot as desperate for a career-making song, he was already internationally famous, with multiple hits, when the wreck occurred. &lt;br /&gt;
&lt;br /&gt;
Only a day after the comic was released (March 23rd, 2024) a YouTuber recorded [https://www.youtube.com/watch?v=AGsi9Ry6TsU Randall's version of the song].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a guitar and singing on a pier. Two pairs of connected eighth notes are on the left and right of Cueball, as well as a detached eighth note on his right. Three seagulls fly in the background on his left. Four pillars of the pier and the water below it are also shown. Throughout the comic, alternate pairs of lines of the song are indented as indicated below.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:The ship was the pride&lt;br /&gt;
:of the American side&lt;br /&gt;
::It was due to set&lt;br /&gt;
::sail for Cleveland&lt;br /&gt;
:As the big freighters go,&lt;br /&gt;
:it was bigger than most&lt;br /&gt;
::With a crew and good&lt;br /&gt;
::captain well seasoned&lt;br /&gt;
&lt;br /&gt;
:[Zoom on Cueball facing to his right, still holding the guitar, without the pier, water, and seagulls. A pair of connected eighth notes to his right, a half note and a detached eighth note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:But taking a walk on&lt;br /&gt;
:the shore by the dock&lt;br /&gt;
::Was a songwriter named&lt;br /&gt;
::Gordon Lightfoot&lt;br /&gt;
:He was humming a tune&lt;br /&gt;
:but it didn't have words&lt;br /&gt;
::For it's challenging&lt;br /&gt;
::trying to write good&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Cueball's face. A quarter note and a pair of connected eighth notes to his right, a detached eighth note and a quarter note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Poor Gordon sought glory&lt;br /&gt;
:but needed a story&lt;br /&gt;
::His career in folk&lt;br /&gt;
::music imperiled&lt;br /&gt;
:He mulled over this as&lt;br /&gt;
:he watched them do work&lt;br /&gt;
::On the hull of the&lt;br /&gt;
::''Edmund Fitzgerald''&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to second panel. Cueball is now facing to his left. A pair of connected eighth notes to Cueball's right, a separated eighth note and a pair of connected eighth notes to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Perhaps it was wrong,&lt;br /&gt;
:what he did for a song&lt;br /&gt;
::He should never have&lt;br /&gt;
::bribed that mechanic&lt;br /&gt;
:But his maritime crimes&lt;br /&gt;
:are no worse than the time&lt;br /&gt;
::Young James Cameron&lt;br /&gt;
::sank the ''Titanic''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Songs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370481</id>
		<title>2910: The Wreck of the Edmund Fitzgerald</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370481"/>
				<updated>2025-03-26T21:25:02Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Possessive required&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2910&lt;br /&gt;
| date      = March 22, 2024&lt;br /&gt;
| title     = The Wreck of the Edmund Fitzgerald&lt;br /&gt;
| image     = the_wreck_of_the_edmund_fitzgerald_2x.png&lt;br /&gt;
| imagesize = 463x672px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You know that asteroid that almost destroyed Earth in the 90s? Turns out the whole thing was secretly created by Michael Bay, who then PAID Bruce Willis and Ben Affleck to look heroic while blowing it up!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic features [[Cueball]] on a pier with a guitar, sharing a conspiracy theory about the origin of {{w|Gordon Lightfoot}}'s song '{{w|The Wreck of the Edmund Fitzgerald|The Wreck of the ''Edmund Fitzgerald''}}'. This song, which was one of the most recognizable and successful of Lightfoot's career, recounts the fate of the {{w|SS Edmund Fitzgerald|SS ''Edmund Fitzgerald''}}, a {{w|Great Lakes}} freighter which famously sank during a storm on {{w|Lake Superior}}, resulting in the deaths of the entire crew.&lt;br /&gt;
&lt;br /&gt;
The song was written only a few months after the incident. In Cueball's version, it was Lightfoot himself who engineered the wreck, in order to provide material for lyrics to fit a tune he'd already composed. Cueball then goes on to suggest that a &amp;quot;young&amp;quot; director {{w|James Cameron}} engineered the much greater maritime disaster, the 1912 {{w|Sinking of the Titanic|sinking of the RMS ''Titanic''}}, so he could create {{w|Titanic (1997 film)|a film about it}} 85 years later (when Cameron was 42 years old).&lt;br /&gt;
&lt;br /&gt;
This theme is carried further in the title text, which suggests that director {{w|Michael Bay}} created an actual asteroid in the 1990s and directed it toward the Earth, in order to provide material for his film ''{{w|Armageddon (1998 film)|Armageddon}}''. However, there was no such asteroid: unlike the other examples, this film was not based on real events.&lt;br /&gt;
&lt;br /&gt;
The first, third, and fourth lines of Cueball's song are identical to the 9th, 11th, and 12th lines of Lightfoot's. Cueball's second line, &amp;quot;It was due to set sail for Cleveland&amp;quot; does not match Lightfoot's 10th, &amp;quot;Coming back from some mill in Wisconsin&amp;quot;, but is closer to Lightfoot's 14th line, &amp;quot;When they left fully loaded for Cleveland&amp;quot;. It is possible that Randall made this change in order to tighten the otherwise fairly loose rhyming scheme of the song. After Cueball's first four lines, his song departs significantly from Lightfoot's.&lt;br /&gt;
&lt;br /&gt;
In real life, the cause of the ship's sinking remains unknown, but it's speculated that the ship's hull broke up in the [https://www.youtube.com/watch?v=wIg90sVSwSE rough waters of a storm.] Lightfoot, who wasn't involved with the ship at all, [https://www.thestar.com/news/canada/the-ship-sank-all-over-again-families-of-victims-in-wreck-recall-gordon-lightfoot/article_8cb6b84d-5576-5344-ba20-d5b06e3370d9.html] devoted considerable time, effort and money to the families of the disaster's victims. In addition, while the parody presents Lightfoot as desperate for a career-making song, he was already internationally famous, with multiple hits, when the wreck occurred. &lt;br /&gt;
&lt;br /&gt;
Only a day after the comic was released (March 23rd, 2024) a YouTuber recorded [https://www.youtube.com/watch?v=AGsi9Ry6TsU Randall's version of the song].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a guitar and singing on a pier. Two pairs of connected eighth notes are on the left and right of Cueball, as well as a detached eighth note on his right. Three seagulls fly in the background on his left. Four pillars of the pier and the water below it are also shown. Throughout the comic, alternate pairs of lines of the song are indented as indicated below.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:The ship was the pride&lt;br /&gt;
:of the American side&lt;br /&gt;
::It was due to set&lt;br /&gt;
::sail for Cleveland&lt;br /&gt;
:As the big freighters go,&lt;br /&gt;
:it was bigger than most&lt;br /&gt;
::With a crew and good&lt;br /&gt;
::captain well seasoned&lt;br /&gt;
&lt;br /&gt;
:[Zoom on Cueball facing to his right, still holding the guitar, without the pier, water, and seagulls. A pair of connected eighth notes to his right, a half note and a detached eighth note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:But taking a walk on&lt;br /&gt;
:the shore by the dock&lt;br /&gt;
::Was a songwriter named&lt;br /&gt;
::Gordon Lightfoot&lt;br /&gt;
:He was humming a tune&lt;br /&gt;
:but it didn't have words&lt;br /&gt;
::For it's challenging&lt;br /&gt;
::trying to write good&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Cueball's face. A quarter note and a pair of connected eighth notes to his right, a detached eighth note and a quarter note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Poor Gordon sought glory&lt;br /&gt;
:but needed a story&lt;br /&gt;
::His career in folk&lt;br /&gt;
::music imperiled&lt;br /&gt;
:He mulled over this as&lt;br /&gt;
:he watched them do work&lt;br /&gt;
::On the hull of the&lt;br /&gt;
::''Edmund Fitzgerald''&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to second panel. Cueball is now facing to his left. A pair of connected eighth notes to Cueball's right, a separated eighth note and a pair of connected eighth notes to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Perhaps it was wrong,&lt;br /&gt;
:what he did for a song&lt;br /&gt;
::He should never have&lt;br /&gt;
::bribed that mechanic&lt;br /&gt;
:But his maritime crimes&lt;br /&gt;
:are no worse than the time&lt;br /&gt;
::Young James Cameron&lt;br /&gt;
::sank the ''Titanic''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Songs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370480</id>
		<title>2910: The Wreck of the Edmund Fitzgerald</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370480"/>
				<updated>2025-03-26T21:23:30Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ That's MISTER Earth to you&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2910&lt;br /&gt;
| date      = March 22, 2024&lt;br /&gt;
| title     = The Wreck of the Edmund Fitzgerald&lt;br /&gt;
| image     = the_wreck_of_the_edmund_fitzgerald_2x.png&lt;br /&gt;
| imagesize = 463x672px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You know that asteroid that almost destroyed Earth in the 90s? Turns out the whole thing was secretly created by Michael Bay, who then PAID Bruce Willis and Ben Affleck to look heroic while blowing it up!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic features [[Cueball]] on a pier with a guitar, sharing a conspiracy theory about the origin of {{w|Gordon Lightfoot}}'s song '{{w|The Wreck of the Edmund Fitzgerald|The Wreck of the ''Edmund Fitzgerald''}}'. This song, which was one of the most recognizable and successful of Lightfoot's career, recounts the fate of the {{w|SS Edmund Fitzgerald|SS ''Edmund Fitzgerald''}}, a {{w|Great Lakes}} freighter which famously sank during a storm on {{w|Lake Superior}}, resulting in the deaths of the entire crew.&lt;br /&gt;
&lt;br /&gt;
The song was written only a few months after the incident. In Cueball's version, it was Lightfoot himself who engineered the wreck, in order to provide material for lyrics to fit a tune he'd already composed. Cueball then goes on to suggest that a &amp;quot;young&amp;quot; director {{w|James Cameron}} engineered the much greater maritime disaster, the 1912 {{w|Sinking of the Titanic|sinking of the RMS ''Titanic''}}, so he could create {{w|Titanic (1997 film)|a film about it}} 85 years later (when Cameron was 42 years old).&lt;br /&gt;
&lt;br /&gt;
This theme is carried further in the title text, which suggests that director {{w|Michael Bay}} created an actual asteroid in the 1990s and directed it toward the Earth, in order to provide material for his film ''{{w|Armageddon (1998 film)|Armageddon}}''. However, there was no such asteroid: unlike the other examples, this film was not based on real events.&lt;br /&gt;
&lt;br /&gt;
The first, third, and fourth lines of Cueball's song are identical to the 9th, 11th, and 12th lines of Lightfoot's. Cueball's second line, &amp;quot;It was due to set sail for Cleveland&amp;quot; does not match Lightfoot's 10th, &amp;quot;Coming back from some mill in Wisconsin&amp;quot;, but is closer to Lightfoot's 14th line, &amp;quot;When they left fully loaded for Cleveland&amp;quot;. It is possible that Randall made this change in order to tighten the otherwise fairly loose rhyming scheme of the song. After Cueball's first four lines, his song departs significantly from Lightfoot's.&lt;br /&gt;
&lt;br /&gt;
In real life, the cause of the ship sinking remains unknown, but it's speculated that the ship's hull broke up in the [https://www.youtube.com/watch?v=wIg90sVSwSE rough waters of a storm.] Lightfoot, who wasn't involved with the ship at all, [https://www.thestar.com/news/canada/the-ship-sank-all-over-again-families-of-victims-in-wreck-recall-gordon-lightfoot/article_8cb6b84d-5576-5344-ba20-d5b06e3370d9.html] devoted considerable time, effort and money to the families of the disaster's victims. In addition, while the parody presents Lightfoot as desperate for a career-making song, he was already internationally famous, with multiple hits, when the wreck occurred. &lt;br /&gt;
&lt;br /&gt;
Only a day after the comic was released (March 23rd, 2024) a YouTuber recorded [https://www.youtube.com/watch?v=AGsi9Ry6TsU Randall's version of the song].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a guitar and singing on a pier. Two pairs of connected eighth notes are on the left and right of Cueball, as well as a detached eighth note on his right. Three seagulls fly in the background on his left. Four pillars of the pier and the water below it are also shown. Throughout the comic, alternate pairs of lines of the song are indented as indicated below.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:The ship was the pride&lt;br /&gt;
:of the American side&lt;br /&gt;
::It was due to set&lt;br /&gt;
::sail for Cleveland&lt;br /&gt;
:As the big freighters go,&lt;br /&gt;
:it was bigger than most&lt;br /&gt;
::With a crew and good&lt;br /&gt;
::captain well seasoned&lt;br /&gt;
&lt;br /&gt;
:[Zoom on Cueball facing to his right, still holding the guitar, without the pier, water, and seagulls. A pair of connected eighth notes to his right, a half note and a detached eighth note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:But taking a walk on&lt;br /&gt;
:the shore by the dock&lt;br /&gt;
::Was a songwriter named&lt;br /&gt;
::Gordon Lightfoot&lt;br /&gt;
:He was humming a tune&lt;br /&gt;
:but it didn't have words&lt;br /&gt;
::For it's challenging&lt;br /&gt;
::trying to write good&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Cueball's face. A quarter note and a pair of connected eighth notes to his right, a detached eighth note and a quarter note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Poor Gordon sought glory&lt;br /&gt;
:but needed a story&lt;br /&gt;
::His career in folk&lt;br /&gt;
::music imperiled&lt;br /&gt;
:He mulled over this as&lt;br /&gt;
:he watched them do work&lt;br /&gt;
::On the hull of the&lt;br /&gt;
::''Edmund Fitzgerald''&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to second panel. Cueball is now facing to his left. A pair of connected eighth notes to Cueball's right, a separated eighth note and a pair of connected eighth notes to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Perhaps it was wrong,&lt;br /&gt;
:what he did for a song&lt;br /&gt;
::He should never have&lt;br /&gt;
::bribed that mechanic&lt;br /&gt;
:But his maritime crimes&lt;br /&gt;
:are no worse than the time&lt;br /&gt;
::Young James Cameron&lt;br /&gt;
::sank the ''Titanic''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Songs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370479</id>
		<title>2910: The Wreck of the Edmund Fitzgerald</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370479"/>
				<updated>2025-03-26T21:21:56Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ slightly more felicitous wording&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2910&lt;br /&gt;
| date      = March 22, 2024&lt;br /&gt;
| title     = The Wreck of the Edmund Fitzgerald&lt;br /&gt;
| image     = the_wreck_of_the_edmund_fitzgerald_2x.png&lt;br /&gt;
| imagesize = 463x672px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You know that asteroid that almost destroyed Earth in the 90s? Turns out the whole thing was secretly created by Michael Bay, who then PAID Bruce Willis and Ben Affleck to look heroic while blowing it up!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic features [[Cueball]] on a pier with a guitar, sharing a conspiracy theory about the origin of {{w|Gordon Lightfoot}}'s song '{{w|The Wreck of the Edmund Fitzgerald|The Wreck of the ''Edmund Fitzgerald''}}'. This song, which was one of the most recognizable and successful of Lightfoot's career, recounts the fate of the {{w|SS Edmund Fitzgerald|SS ''Edmund Fitzgerald''}}, a {{w|Great Lakes}} freighter which famously sank during a storm on {{w|Lake Superior}}, resulting in the deaths of the entire crew.&lt;br /&gt;
&lt;br /&gt;
The song was written only a few months after the incident. In Cueball's version, it was Lightfoot himself who engineered the wreck, in order to provide material for lyrics to fit a tune he'd already composed. Cueball then goes on to suggest that a &amp;quot;young&amp;quot; director {{w|James Cameron}} engineered the much greater maritime disaster, the 1912 {{w|Sinking of the Titanic|sinking of the RMS ''Titanic''}}, so he could create {{w|Titanic (1997 film)|a film about it}} 85 years later (when Cameron was 42 years old).&lt;br /&gt;
&lt;br /&gt;
This theme is carried further in the title text, which suggests that director {{w|Michael Bay}} created an actual asteroid in the 1990s and directed it toward the earth, in order to provide material for his film ''{{w|Armageddon (1998 film)|Armageddon}}''. However, there was no such asteroid: unlike the other examples, this film was not based on real events.&lt;br /&gt;
&lt;br /&gt;
The first, third, and fourth lines of Cueball's song are identical to the 9th, 11th, and 12th lines of Lightfoot's. Cueball's second line, &amp;quot;It was due to set sail for Cleveland&amp;quot; does not match Lightfoot's 10th, &amp;quot;Coming back from some mill in Wisconsin&amp;quot;, but is closer to Lightfoot's 14th line, &amp;quot;When they left fully loaded for Cleveland&amp;quot;. It is possible that Randall made this change in order to tighten the otherwise fairly loose rhyming scheme of the song. After Cueball's first four lines, his song departs significantly from Lightfoot's.&lt;br /&gt;
&lt;br /&gt;
In real life, the cause of the ship sinking remains unknown, but it's speculated that the ship's hull broke up in the [https://www.youtube.com/watch?v=wIg90sVSwSE rough waters of a storm.] Lightfoot, who wasn't involved with the ship at all, [https://www.thestar.com/news/canada/the-ship-sank-all-over-again-families-of-victims-in-wreck-recall-gordon-lightfoot/article_8cb6b84d-5576-5344-ba20-d5b06e3370d9.html] devoted considerable time, effort and money to the families of the disaster's victims. In addition, while the parody presents Lightfoot as desperate for a career-making song, he was already internationally famous, with multiple hits, when the wreck occurred. &lt;br /&gt;
&lt;br /&gt;
Only a day after the comic was released (March 23rd, 2024) a YouTuber recorded [https://www.youtube.com/watch?v=AGsi9Ry6TsU Randall's version of the song].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a guitar and singing on a pier. Two pairs of connected eighth notes are on the left and right of Cueball, as well as a detached eighth note on his right. Three seagulls fly in the background on his left. Four pillars of the pier and the water below it are also shown. Throughout the comic, alternate pairs of lines of the song are indented as indicated below.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:The ship was the pride&lt;br /&gt;
:of the American side&lt;br /&gt;
::It was due to set&lt;br /&gt;
::sail for Cleveland&lt;br /&gt;
:As the big freighters go,&lt;br /&gt;
:it was bigger than most&lt;br /&gt;
::With a crew and good&lt;br /&gt;
::captain well seasoned&lt;br /&gt;
&lt;br /&gt;
:[Zoom on Cueball facing to his right, still holding the guitar, without the pier, water, and seagulls. A pair of connected eighth notes to his right, a half note and a detached eighth note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:But taking a walk on&lt;br /&gt;
:the shore by the dock&lt;br /&gt;
::Was a songwriter named&lt;br /&gt;
::Gordon Lightfoot&lt;br /&gt;
:He was humming a tune&lt;br /&gt;
:but it didn't have words&lt;br /&gt;
::For it's challenging&lt;br /&gt;
::trying to write good&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Cueball's face. A quarter note and a pair of connected eighth notes to his right, a detached eighth note and a quarter note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Poor Gordon sought glory&lt;br /&gt;
:but needed a story&lt;br /&gt;
::His career in folk&lt;br /&gt;
::music imperiled&lt;br /&gt;
:He mulled over this as&lt;br /&gt;
:he watched them do work&lt;br /&gt;
::On the hull of the&lt;br /&gt;
::''Edmund Fitzgerald''&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to second panel. Cueball is now facing to his left. A pair of connected eighth notes to Cueball's right, a separated eighth note and a pair of connected eighth notes to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Perhaps it was wrong,&lt;br /&gt;
:what he did for a song&lt;br /&gt;
::He should never have&lt;br /&gt;
::bribed that mechanic&lt;br /&gt;
:But his maritime crimes&lt;br /&gt;
:are no worse than the time&lt;br /&gt;
::Young James Cameron&lt;br /&gt;
::sank the ''Titanic''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Songs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370478</id>
		<title>2910: The Wreck of the Edmund Fitzgerald</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2910:_The_Wreck_of_the_Edmund_Fitzgerald&amp;diff=370478"/>
				<updated>2025-03-26T21:20:59Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Clarify the joke and add some detail about textual changes&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2910&lt;br /&gt;
| date      = March 22, 2024&lt;br /&gt;
| title     = The Wreck of the Edmund Fitzgerald&lt;br /&gt;
| image     = the_wreck_of_the_edmund_fitzgerald_2x.png&lt;br /&gt;
| imagesize = 463x672px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You know that asteroid that almost destroyed Earth in the 90s? Turns out the whole thing was secretly created by Michael Bay, who then PAID Bruce Willis and Ben Affleck to look heroic while blowing it up!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The comic features [[Cueball]] on a pier with a guitar, sharing a conspiracy theory about the origin of {{w|Gordon Lightfoot}}'s song '{{w|The Wreck of the Edmund Fitzgerald|The Wreck of the ''Edmund Fitzgerald''}}'. This song, which was one of the most recognizable and successful of Lightfoot's career, recounts the fate of the {{w|SS Edmund Fitzgerald|SS ''Edmund Fitzgerald''}}, a {{w|Great Lakes}} freighter which famously sank during a storm on {{w|Lake Superior}}, resulting in the deaths of the entire crew.&lt;br /&gt;
&lt;br /&gt;
The song was written only a few months after the incident. In Cueball's version, it was Lightfoot himself who engineered the wreck, in order to provide material for lyrics that fit a tune he'd already composed. Cueball then goes on to suggest that a &amp;quot;young&amp;quot; director {{w|James Cameron}} engineered the much greater maritime disaster, the 1912 {{w|Sinking of the Titanic|sinking of the RMS ''Titanic''}}, so he could create {{w|Titanic (1997 film)|a film about it}} 85 years later (when Cameron was 42 years old).&lt;br /&gt;
&lt;br /&gt;
This theme is carried further in the title text, which suggests that director {{w|Michael Bay}} created an actual asteroid in the 1990s and directed it toward the earth, in order to provide material for his film ''{{w|Armageddon (1998 film)|Armageddon}}''. However, there was no such asteroid: unlike the other examples, this film was not based on real events.&lt;br /&gt;
&lt;br /&gt;
The first, third, and fourth lines of Cueball's song are identical to the 9th, 11th, and 12th lines of Lightfoot's. Cueball's second line, &amp;quot;It was due to set sail for Cleveland&amp;quot; does not match Lightfoot's 10th, &amp;quot;Coming back from some mill in Wisconsin&amp;quot;, but is closer to Lightfoot's 14th line, &amp;quot;When they left fully loaded for Cleveland&amp;quot;. It is possible that Randall made this change in order to tighten the otherwise fairly loose rhyming scheme of the song. After Cueball's first four lines, his song departs significantly from Lightfoot's.&lt;br /&gt;
&lt;br /&gt;
In real life, the cause of the ship sinking remains unknown, but it's speculated that the ship's hull broke up in the [https://www.youtube.com/watch?v=wIg90sVSwSE rough waters of a storm.] Lightfoot, who wasn't involved with the ship at all, [https://www.thestar.com/news/canada/the-ship-sank-all-over-again-families-of-victims-in-wreck-recall-gordon-lightfoot/article_8cb6b84d-5576-5344-ba20-d5b06e3370d9.html] devoted considerable time, effort and money to the families of the disaster's victims. In addition, while the parody presents Lightfoot as desperate for a career-making song, he was already internationally famous, with multiple hits, when the wreck occurred. &lt;br /&gt;
&lt;br /&gt;
Only a day after the comic was released (March 23rd, 2024) a YouTuber recorded [https://www.youtube.com/watch?v=AGsi9Ry6TsU Randall's version of the song].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a guitar and singing on a pier. Two pairs of connected eighth notes are on the left and right of Cueball, as well as a detached eighth note on his right. Three seagulls fly in the background on his left. Four pillars of the pier and the water below it are also shown. Throughout the comic, alternate pairs of lines of the song are indented as indicated below.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:The ship was the pride&lt;br /&gt;
:of the American side&lt;br /&gt;
::It was due to set&lt;br /&gt;
::sail for Cleveland&lt;br /&gt;
:As the big freighters go,&lt;br /&gt;
:it was bigger than most&lt;br /&gt;
::With a crew and good&lt;br /&gt;
::captain well seasoned&lt;br /&gt;
&lt;br /&gt;
:[Zoom on Cueball facing to his right, still holding the guitar, without the pier, water, and seagulls. A pair of connected eighth notes to his right, a half note and a detached eighth note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:But taking a walk on&lt;br /&gt;
:the shore by the dock&lt;br /&gt;
::Was a songwriter named&lt;br /&gt;
::Gordon Lightfoot&lt;br /&gt;
:He was humming a tune&lt;br /&gt;
:but it didn't have words&lt;br /&gt;
::For it's challenging&lt;br /&gt;
::trying to write good&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Cueball's face. A quarter note and a pair of connected eighth notes to his right, a detached eighth note and a quarter note to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Poor Gordon sought glory&lt;br /&gt;
:but needed a story&lt;br /&gt;
::His career in folk&lt;br /&gt;
::music imperiled&lt;br /&gt;
:He mulled over this as&lt;br /&gt;
:he watched them do work&lt;br /&gt;
::On the hull of the&lt;br /&gt;
::''Edmund Fitzgerald''&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to second panel. Cueball is now facing to his left. A pair of connected eighth notes to Cueball's right, a separated eighth note and a pair of connected eighth notes to his left.]&lt;br /&gt;
:Cueball:&lt;br /&gt;
:Perhaps it was wrong,&lt;br /&gt;
:what he did for a song&lt;br /&gt;
::He should never have&lt;br /&gt;
::bribed that mechanic&lt;br /&gt;
:But his maritime crimes&lt;br /&gt;
:are no worse than the time&lt;br /&gt;
::Young James Cameron&lt;br /&gt;
::sank the ''Titanic''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Songs]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2907:_Schwa&amp;diff=365929</id>
		<title>2907: Schwa</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2907:_Schwa&amp;diff=365929"/>
				<updated>2025-02-16T18:58:48Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Oops. DIdn't actually make the change. See previous comment.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2907&lt;br /&gt;
| date      = March 15, 2024&lt;br /&gt;
| title     = Schwa&lt;br /&gt;
| image     = schwa_2x.png&lt;br /&gt;
| imagesize = 301x389px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Doug's cousin, the one from London, runs a Bumble love cult.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
English features a lot of {{w|Reduced vowel|vowel reduction}}, where vowels in unstressed syllables often become a short 'uh'-like sound called a {{w|schwa}} (ə). As [[Randall]] notes, this makes it by far the most common sound in English, and [[Randall]] makes the observational joke that one can learn the English language without learning any other vowel sounds, if one sticks to the right topics of conversation. He gives conversational examples which demonstrate exactly that, using words that contain ''only'' the schwa vowel. Note that this is accurate only for dialects with the {{w|Phonological history of English close back vowels#STRUT–COMMA merger|ꜱᴛʀᴜᴛ-coᴍᴍᴀ merger}}, where the two vowels in the word &amp;quot;button&amp;quot; are pronounced the same.&lt;br /&gt;
&lt;br /&gt;
The humor lies in the unusal and impractical elements of this tip:&lt;br /&gt;
* It's ''impractical'', since limiting oneself to only words with schwa will exclude using many common words (like &amp;quot;no&amp;quot;) and make for stilted speech (using &amp;quot;Nuh uh&amp;quot; every time instead).&lt;br /&gt;
* It's ''highly unusual'' for hyper-efficient language learning to focus on all words with a common vowel sound rather than, say, the 1,000 most common words. English learners learn between 14 and 20 vowel sounds - depending on the dialect - which are written with just six vowel letters (AEIOU and sometimes Y). For example, the 'a' in &amp;quot;cat&amp;quot; may not be the same 'a' in &amp;quot;father&amp;quot;, depending on dialect.&lt;br /&gt;
&lt;br /&gt;
Randall has had a longstanding interest in minimalist visions of English communication. He published a whole book, Thing Explainer, about explaining complex ideas — such as the Up-Goer 5 — using “only the ten hundred words people use the most often.”&lt;br /&gt;
&lt;br /&gt;
The intended pronunciation of the conversation can be written in the {{w|International Phonetic Alphabet}} (while preserving punctuation marks) as:&lt;br /&gt;
:Megan: /wəts əp&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;?&amp;lt;/font&amp;gt; wəz dəɡ ˈɡənə kəm&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;?&amp;lt;/font&amp;gt; dəɡ ləvz brən{{w|Voiceless postalveolar affricate|t͡ʃ}}&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
:Ponytail: /ˈnə{{w|Glottal stop|ʔ}}&amp;lt;nowiki /&amp;gt;ə&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; dəɡz stək kəz əv ə ˈtən(ə)l əbˈstrək{{w|Voiceless postalveolar fricative|ʃ}}(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt; ə trək dəmpt ə tən əv ˈən{{w|Voiced palatal approximant|j}}(ə)nz&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
:Megan: /ə{{w|Voiceless velar fricative|x}}&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
&lt;br /&gt;
The title text, in IPA, if only schwas were used:&lt;br /&gt;
:/dəgz ˈkəz(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; {{w|Voiced dental fricative|ð}}&amp;lt;nowiki /&amp;gt;ə wən frəm ˈlənd(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; rənz ə ˈbəmb(ə)l ləv kəlt&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Megan, Cueball, and Ponytail stand in front of a dinner table, with Megan and Cueball facing Ponytail. Megan has her hand on the rightmost chair while Ponytail has her palm out.]&lt;br /&gt;
:Megan: What's up? Was Doug gonna come? Doug loves brunch.&lt;br /&gt;
:Ponytail: Nuh uh, Doug's stuck 'cause of a tunnel obstruction. A truck dumped a ton of onions.&lt;br /&gt;
:Megan: Ugh.&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:The schwa is the most common vowel sound in English. In fact, if you stick to the right conversation topics, you can avoid learning any other ones.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Language]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2907:_Schwa&amp;diff=365928</id>
		<title>2907: Schwa</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2907:_Schwa&amp;diff=365928"/>
				<updated>2025-02-16T18:30:34Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Don't need examples of dialects that have (or don't have? it wasn't even clear) the strut-comma merger.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2907&lt;br /&gt;
| date      = March 15, 2024&lt;br /&gt;
| title     = Schwa&lt;br /&gt;
| image     = schwa_2x.png&lt;br /&gt;
| imagesize = 301x389px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Doug's cousin, the one from London, runs a Bumble love cult.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
English features a lot of {{w|Reduced vowel|vowel reduction}}, where vowels in unstressed syllables often become a short 'uh'-like sound called a {{w|schwa}} (ə). As [[Randall]] notes, this makes it by far the most common sound in English, and [[Randall]] makes the observational joke that one can learn the English language without learning any other vowel sounds, if one sticks to the right topics of conversation. He gives conversational examples which demonstrate exactly that, using words that contain ''only'' the schwa vowel. (Note that this is accurate only for dialects with the {{w|Phonological history of English close back vowels#STRUT–COMMA merger|ꜱᴛʀᴜᴛ-coᴍᴍᴀ merger}}). This is an example of {{w|reverse lipogram}} in speech, where each word has a particular sound in the speech.&lt;br /&gt;
&lt;br /&gt;
The humor lies in the unusal and impractical elements of this tip:&lt;br /&gt;
* It's ''impractical'', since limiting oneself to only words with schwa will exclude using many common words (like &amp;quot;no&amp;quot;) and make for stilted speech (using &amp;quot;Nuh uh&amp;quot; every time instead).&lt;br /&gt;
* It's ''highly unusual'' for hyper-efficient language learning to focus on all words with a common vowel sound rather than, say, the 1,000 most common words. English learners learn between 14 and 20 vowel sounds - depending on the dialect - which are written with just six vowel letters (AEIOU and sometimes Y). For example, the 'a' in &amp;quot;cat&amp;quot; may not be the same 'a' in &amp;quot;father&amp;quot;, depending on dialect.&lt;br /&gt;
&lt;br /&gt;
Randall has had a longstanding interest in minimalist visions of English communication. He published a whole book, Thing Explainer, about explaining complex ideas — such as the Up-Goer 5 — using “only the ten hundred words people use the most often.”&lt;br /&gt;
&lt;br /&gt;
The intended pronunciation of the conversation can be written in the {{w|International Phonetic Alphabet}} (while preserving punctuation marks) as:&lt;br /&gt;
:Megan: /wəts əp&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;?&amp;lt;/font&amp;gt; wəz dəɡ ˈɡənə kəm&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;?&amp;lt;/font&amp;gt; dəɡ ləvz brən{{w|Voiceless postalveolar affricate|t͡ʃ}}&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
:Ponytail: /ˈnə{{w|Glottal stop|ʔ}}&amp;lt;nowiki /&amp;gt;ə&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; dəɡz stək kəz əv ə ˈtən(ə)l əbˈstrək{{w|Voiceless postalveolar fricative|ʃ}}(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt; ə trək dəmpt ə tən əv ˈən{{w|Voiced palatal approximant|j}}(ə)nz&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
:Megan: /ə{{w|Voiceless velar fricative|x}}&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
&lt;br /&gt;
The title text, in IPA, if only schwas were used:&lt;br /&gt;
:/dəgz ˈkəz(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; {{w|Voiced dental fricative|ð}}&amp;lt;nowiki /&amp;gt;ə wən frəm ˈlənd(ə)n&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;,&amp;lt;/font&amp;gt; rənz ə ˈbəmb(ə)l ləv kəlt&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;.&amp;lt;/font&amp;gt;/&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Megan, Cueball, and Ponytail stand in front of a dinner table, with Megan and Cueball facing Ponytail. Megan has her hand on the rightmost chair while Ponytail has her palm out.]&lt;br /&gt;
:Megan: What's up? Was Doug gonna come? Doug loves brunch.&lt;br /&gt;
:Ponytail: Nuh uh, Doug's stuck 'cause of a tunnel obstruction. A truck dumped a ton of onions.&lt;br /&gt;
:Megan: Ugh.&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:The schwa is the most common vowel sound in English. In fact, if you stick to the right conversation topics, you can avoid learning any other ones.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Language]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2903:_Earth/Venus_Venn_Diagram&amp;diff=362290</id>
		<title>2903: Earth/Venus Venn Diagram</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2903:_Earth/Venus_Venn_Diagram&amp;diff=362290"/>
				<updated>2025-01-16T03:54:48Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Removing material that doesn't actually explain this comic&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2903&lt;br /&gt;
| date      = March 6, 2024&lt;br /&gt;
| title     = Earth/Venus Venn Diagram&lt;br /&gt;
| image     = earth_venus_venn_diagram_2x.png&lt;br /&gt;
| imagesize = 416x309px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Actually, the fact that Mars is still orbiting safely over here means that it was technically an *Euler* apocalypse, not a Venn one.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
A {{w|Venn diagram}} illustrates the relationships and differences among sets by showing common and distinct elements, using overlapping circles (or other shapes). This comic is both a '''Venn diagram''' and a '''proximity illustration''' of {{w|Earth}} and {{w|Venus}} colliding, physically 'overlapping' each other.&lt;br /&gt;
* As a '''proximity illustration''', it depicts Earth and Venus smashing into each other, resulting in &amp;quot;shockwaves and production of impact ejecta&amp;quot; occurring where they collide. The relative circle sizes are accurate; the circumference of Venus is 5% smaller than Earth's.&lt;br /&gt;
* As a '''Venn diagram''', it shows a collision moment in which the commonality between Earth and Venus is &amp;quot;shockwaves and production of impact ejecta&amp;quot; at the spot of intermingled Earth-Venus overlap.&lt;br /&gt;
&lt;br /&gt;
'''Shockwaves''' are intense, high-pressure waves caused by the immense force of the impact, that propagate through the materials of both planets faster than the speed of sound. &lt;br /&gt;
&lt;br /&gt;
'''Impact ejecta''' are the materials expelled from the impact site, consisting of molten rock, vaporized material, and solid debris, flung out at high velocities due to the energy released by the collision. The production of impact ejecta would indeed occur in the overlapping impact area.&lt;br /&gt;
&lt;br /&gt;
The title text is [[2721: Euler Diagrams|another xkcd joke]] about the difference between a [[:Category:Venn diagrams|Venn]] diagram and an [[:Category:Euler diagrams|Euler]] diagram, which is similar to a Venn diagram except that it's acceptable to have circles (or other shapes) that do not intersect if there are no common elements between those sets. The observation that {{w|Mars}} is still orbiting by itself makes Mars an additional set (out of the frame of the diagram), in addition to - but not intersecting with - Earth and Venus, making this technically an {{w|Euler diagram}}. Therefore if the Earth-Venus collision is a &amp;quot;Venn apocalypse,&amp;quot; the inclusion of Mars as a non-intersecting entity makes this technically an &amp;quot;Euler apocalypse.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Two circles are drawn so they overlap. The segments of the circles that overlap are drawn in dashed lines. Each circle has a label and text are written in the central overlapping part the circle. Above the circles there is a caption:]&lt;br /&gt;
:Earth/Venus Venn Diagram&lt;br /&gt;
:Left: Earth &lt;br /&gt;
:Right: Venus &lt;br /&gt;
:Center: Shock-waves and production of impact ejecta&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Venn diagrams]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Euler diagrams]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2901:_Geographic_Qualifiers&amp;diff=361764</id>
		<title>2901: Geographic Qualifiers</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2901:_Geographic_Qualifiers&amp;diff=361764"/>
				<updated>2025-01-12T03:37:37Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ I agree with 172.68.27.26: this text is unnecessary. There are indeed a lot of things that the comic didn't say, and we don't need to write about them.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2901&lt;br /&gt;
| date      = March 1, 2024&lt;br /&gt;
| title     = Geographic Qualifiers&lt;br /&gt;
| image     = geographic_qualifiers_2x.png&lt;br /&gt;
| imagesize = 435x386px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = 'Thank you for the loveliest evening I've ever had...' [normal] '...east of the Mississippi.' [instant intrigue!]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
In this comic, [[Cueball]] is bragging to a [[:Category:Multiple Cueballs|Cueball-like guy]] in front of a giant statue of a {{w|squirrel}} standing on a skateboard. Cueball states that this is the largest statue of that theme in “the {{w|Northern Hemisphere}}”. The other guy then becomes intrigued, as he realizes that this seems to imply the existence of a taller one in the {{w|Southern Hemisphere}}, not to mention the existence of additional smaller one(s) in the Northern Hemisphere. A skateboarding squirrel is a peculiar enough subject that to find one example of such a statue would be a surprise, and to learn that there is at least one other would be even more surprising.&lt;br /&gt;
&lt;br /&gt;
He quickly considers several countries in that hemisphere, {{w|Brazil}}, {{w|South Africa}}, and {{w|Australia}}. Native squirrel species are found in both {{w|Sciurus ingrami|Brazil}} and {{w|Smith's bush squirrel|South Africa}}, and people there might plausibly choose to erect statues to them. Australia, however, has no native squirrels, and introduced populations of {{w|Eastern gray squirrel|gray}} and {{w|Northern palm squirrel|palm squirrels}} [https://www.agric.wa.gov.au/palm-squirrel reportedly] have been eradicated, at considerable expense of time and money. &amp;quot;Confused Cueball&amp;quot; wonders whether Australians would know or care enough about squirrels to erect statues to them. It so happens, though, that many animals (and many entirely fictional ones) are depicted as statues in countries where they are not native, Australia is known for its many {{w|Big things (Australia)|overly large statues}}, and 1.5 m (5 foot) tall [https://natureworks.com.au/products/animals/mammals/farm-forest-animals/giant-wirral-the-enormous-squirrel-statue/ squirrel statues] are already sold there. So the existence of squirrel statues in the Southern Hemisphere that are larger than the one Cueball is bragging about is not out of the question - but the comic doesn't permit &amp;quot;confused Cueball&amp;quot; the half hour he'd need to drag out his phone and look up all these facts. The question about whether, and how many, of these putative squirrel statues are mounted on a skateboard is separate, although there is nothing in the urban cultures of the places named to preclude this possibility.&lt;br /&gt;
&lt;br /&gt;
It's entirely possible that this qualifier is unnecessary. If the statue were the largest of its kind in the world, or even the only one in the world (which is a distinct possibility, given the very specific nature of the statue), the description would still be true. Sometimes qualifiers are added simply due to incomplete information. They've exhaustively surveyed skateboarding squirrel statues in the Northern Hemisphere and determined that this one is the largest, but since they haven't searched the Southern Hemisphere, they don't want to commit to it being the largest in the world. On the other hand, it's possible that, paradoxically, he deliberately added a needless qualifier in an attempt to make the claim sound more impressive, even though technically it limits its scope, by implying intense competition for a title that, in reality, no one else is interested in claiming. [[Randall]] states, in the caption, that he loves the mystery that such qualifiers create. Doing so could thus have been one of Randall's [[:Category:My Hobby|hobbies]], but he doesn't make that explicit. &lt;br /&gt;
&lt;br /&gt;
Another example appears in the title text, where Randall uses the other example qualifier given in the caption. Here someone is expressing gratitude at the end of a date, saying that it's the loveliest evening they've ever had. This seems normal until they add the location qualifier of &amp;quot;east of the {{w|Mississippi River|Mississippi}}&amp;quot; (the river). This leaves the companion wondering what kind of great evening they had in some other location. In this case, it's unlikely that the speaker would have incomplete information about their own personal history.&lt;br /&gt;
&lt;br /&gt;
The statue may be a reference to [https://www.worldrecordacademy.org/2022/06/worlds-largest-squirrel-sculpture-cedar-creek-texas-sets-world-record-422206 Ms. Pearl], the [https://www.google.com/maps/@30.1663034,-97.5110882,3a,75y,51.89h,82.93t/data=!3m6!1e1!3m4!1shmwK8_AhUxo4gnhMZmWG5w!2e0!7i16384!8i8192 giant squirrel statue] in {{w|Cedar Creek, Texas}} which, at 14 ft (4 m), is indeed the largest squirrel statue in the Western Hemisphere. In 2018, the qualifier ''was'' necessary since a [https://www.new-east-archive.org/articles/show/10477/a-giant-squirrel-has-taken-over-almat|temporary 40 ft (12 m) squirrel statue] was erected in {{w|Kazakhstan}}. (It is no longer there.) But information for tourists in Cedar Creek, Texas, doesn't include this information that would create the mystique.{{Actual citation needed}}&lt;br /&gt;
&lt;br /&gt;
In [[1368: One Of The]], the use of the unnecessary qualifier &amp;quot;one of the&amp;quot; was portrayed as one of Randall's [[:Category:Pet Peeves|Pet Peeves]], with a reporter describing the {{w|Gateway Arch}} as &amp;quot;one of the most recognizable arches in St. Louis&amp;quot;, when it could have been described as &amp;quot;the most recognizable arch&amp;quot; in the city.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[The scene in this comic is shown from afar and drawn in black silhouette on a white background. It depicts a huge statue of a squirrel standing on a skateboard, which is on a pedestal. Below and in front of the statue there are two Cueball-like guys. The Cueball on the left is pointing at the statue and speaking to his friend on the right who has a thought bubble above him.]&lt;br /&gt;
:Cueball: At over 40 feet, it's the tallest statue of a skateboarding squirrel in the Northern Hemisphere.&lt;br /&gt;
:Friend [thinking]: ...Wait, who in the heck...Brazil? South Africa? Australia? Squirrels aren't even native there...&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:I love the instant mystery created by qualifiers like &amp;quot;east of the Mississippi&amp;quot; or &amp;quot;in the Northern Hemisphere.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Geography]]&lt;br /&gt;
[[Category:Squirrels]]&lt;br /&gt;
[[Category:Skateboard]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2891:_Log_Cabin&amp;diff=360289</id>
		<title>Talk:2891: Log Cabin</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2891:_Log_Cabin&amp;diff=360289"/>
				<updated>2024-12-26T00:24:56Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: Third dimension to the rescue&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
:: &amp;quot;''The odd part about it is the bottom right corner, which appears to be infinitely recursive copies..''&amp;quot;&lt;br /&gt;
The whole right side is the left side, shrunk and recursed. Each iteration rotated 90 degrees. The 'shrink' is about 1.616 by my squint, a lot like a &amp;quot;[https://en.wikipedia.org/wiki/Golden_ratio Golden Ratio]&amp;quot; LOGarithmic spiral, as NickM says. [[User:PRR|PRR]] ([[User talk:PRR|talk]]) 19:49, 7 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
::This is a LOGarithmic spiral [[Special:Contributions/172.70.210.103|172.70.210.103]] 19:52, 7 February 2024 (UTC)NickM&lt;br /&gt;
&lt;br /&gt;
:: It is precisely the golden ratio, assuming the left side is a square [[User:Terdragontra|Terdragontra]] ([[User talk:Terdragontra|talk]]) 22:09, 7 February 2024 (UTC)`&lt;br /&gt;
&lt;br /&gt;
::  Note how the spiral cuts the smaller bedrooms wardrobe in half, intersects the two doorframes of the rooms leading off the master bedroom, the toilet and the sink. [https://xkcd.com/1488/ The majesty of the spiral! 🌀] [[Special:Contributions/172.69.79.189|172.69.79.189]] 11:20, 9 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Assuming a standard 36&amp;quot; wide front door, then the next &amp;quot;front&amp;quot; door would be 22.27 inches, then 13.78 inches, then 8.53 inches, at which point I doubt the inspector could squeeze through it, though I guess they could still take a peek inside the next recursion. [[Special:Contributions/172.68.34.58|172.68.34.58]] 20:57, 7 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
:: That's enough for the inspector to verify that the plans are *not* up to code; you can't get a wheelchair into the right-hand side of the house. [[Special:Contributions/172.69.79.189|172.69.79.189]] 11:16, 9 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Infinite bedrooms, infinite baths, close to schools and shopping. [[Special:Contributions/172.69.247.48|172.69.247.48]] 21:00, 7 February 2024 (UTC)&lt;br /&gt;
::Government: Your property tax comes up to infinite dollars. --[[Special:Contributions/172.71.26.160|172.71.26.160]] 21:45, 7 February 2024 (UTC)&lt;br /&gt;
:: In some jurisdictions bedrooms need to have at least one externally facing window. Under this rule there are infinite rooms with beds, but only 8 bedrooms. [[User:Thaledison|Erin Anne]] ([[User talk:Thaledison|talk]]) 17:07, 8 February 2024 (UTC)&lt;br /&gt;
::: Only 7 bedrooms. [[Special:Contributions/162.158.18.138|162.158.18.138]] 22:16, 15 February 2024 (UTC)&lt;br /&gt;
:::: Looks like eight to me. In the first 'set', both 'main' and 'minor' rooms have windows on west wall (plus north/south, respectively). In second set, that west wall is rotated to north (plus north now to east, while south becomes wall-only west). Third set it be becomes an east wall (plus south for Main). Fourth set rotates the shared external wall to south (the main's other wall is now also internal). For the fifth-plus, that w&amp;gt;n&amp;gt;e&amp;gt;s wall is west again, but internalised. So four pairs of bedrooms all have (at least) one wall with windows, then no more. [[Special:Contributions/172.70.90.173|172.70.90.173]] 02:41, 16 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Interesting comparison with the archetypal &amp;quot;labyrinth&amp;quot;. It's actually a fractal version that only avoids being unicursal-with-no-dead-ends due to the off-living-room private spaces being quite trivial offshoots. Which arguably makes it ''fairly'' classical in nature. [[Special:Contributions/172.70.90.114|172.70.90.114]] 21:18, 7 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Should there be a mention that due to the limitations of the image format, it only actually achieves eight iterations? Which makes sense given that construction materials also have limits, and is still enough that the inspectors might be a bit confused if they don't pay close enough attention. [[Special:Contributions/172.69.60.216|172.69.60.216]] 23:21, 7 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Write it [https://www.explainxkcd.com/wiki/index.php?title=2891:_Log_Cabin&amp;amp;diff=prev&amp;amp;oldid=334498 how you want], I just wanted to avoid calling a room with no bath (but a shower) as a &amp;quot;bathroom&amp;quot;, especially when I was mentioning a 'bathroom' with an actual bath in it so soon after. Not that there's a completely unambiguous term for the room with the toilet/lavatory/whatever in it. (For reference, for me it's &amp;quot;the toilet&amp;quot;, despite that also being the porceline item itself, and even that is derived from a hairdressing cloth, through a string of euphemisms. But knew that wouldn't be accepted by the wider readership.) [[Special:Contributions/172.70.85.26|172.70.85.26]] 01:49, 8 February 2024 (UTC)&lt;br /&gt;
:In the USA, any room with a toilet and sink is typically called a &amp;quot;bathroom&amp;quot; whether or not there is a literal bath within. [[Special:Contributions/172.70.131.3|172.70.131.3]] 09:33, 8 February 2024 (UTC)&lt;br /&gt;
::Don't think it's particularly a US/UK thing - it's pretty commonly called a 'bathroom' in the UK too. I think the point of the editor above was the potential for confusion between the ''two'' 'bathrooms', and how to avoid it.[[Special:Contributions/172.69.43.243|172.69.43.243]] 09:44, 8 February 2024 (UTC)&lt;br /&gt;
::It's my experience in the US that real-estate parlance counts a full bathroom as toilet, sink, and tub / shower. It counts a half-bathroom as a toilet and sink only. A house with 1 full bath and two half-baths would generically be considered 3 bathrooms but not listed that way. I don't know what they would call a standalone tub or shower, if any such thing is ever constructed unless it is adjacent to an outdoor swimming pool. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 01:37, 9 February 2024 (UTC)&lt;br /&gt;
::Could you not just call it lavatory? [[Special:Contributions/172.69.58.81|172.69.58.81]] 00:07, 12 February 2024 (UTC)&lt;br /&gt;
:Using a language that allows to say &amp;quot;S***house&amp;quot; in a nice way (praised be the diminutive!) helps in such cases...[[User:Tier666|Tier666]] ([[User talk:Tier666|talk]]) 10:15, 8 February 2024 (UTC)&lt;br /&gt;
::There is a {{wiktionary|Thesaurus:bathroom|truly astounding range of terms}}, in English alone, (and I can think of several not included there, even discounting the rather localised overly-vulgar ''or'' overly-polite ones). [[Special:Contributions/172.70.90.221|172.70.90.221]] 11:38, 8 February 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Are there any non-Euclidean geometries in which you could fit this house without having to shrink the rooms or the people? [[Special:Contributions/172.68.3.44|172.68.3.44]] 16:42, 8 February 2024 (UTC)&lt;br /&gt;
:The logarithmic scaling should be compatible with [[wikipedia:Hyperbolic_geometry|hyperbolic geometry]]. However, the distance metric changes continuously in such a geometry. Here you'd probably need something like a discrete mapping that maps the 1st, 2nd, 3rd, etc. iteration of the outer cabin layout to its proper scaling and rotation. (I vaguely know the concepts but can't do it properly) [[User:Transgalactic|Transgalactic]] ([[User talk:Transgalactic|talk]]) 09:21, 9 February 2024 (UTC)&lt;br /&gt;
::If we're committed to discontinuities (at least in undifferentiatable senses), we can just treat the floorplans as separately just traditional Euclidean but the main doors between 'levels' as a wormhole/portal. Moreover, one which could satisfy the rescaling requirement, (the 'door frame' outward is at the same metric of width/height as the inward one; ''as well as'' the inward one of one layer out, which is not experienced as a funnel). In a connected-voxel manner (as one might render it in virtual terms), every level of square-property has the exact same internal consistency.&lt;br /&gt;
::Save for the windows, which are additional portals limited only to the primary property (present on three walls, all but the 'inward exit' direction), secondary/tertiary ones (two walls, having both lost the 'entry wall' externality that faces their predecessor property) and quaternary (one windowed wall, now enclosed by the prime-property). All these windows similarly portal to the zeroth-level exterior (irregularly spaced, but 'proper-sized'), and of course whilst the 'obscured walls' (including all from quinary-level and beyond) could be not denied windows by being portaled to some surrogate external wall (infinite, necessarily!), in this example they are not.&lt;br /&gt;
::This renders the plans shown as 'wrong' (door widths are scaled differently at both inward and outward locations, with a single square sub-property, and such windows as exist from sub-levels (all nine window-outers on the external south-wall should be the same size as the nine inner windows from the primary square's outward-walls, not just the two and the door which are the direct identical ones).&lt;br /&gt;
::Thus rescaling issues as one traverses doors (or windows) go away. It does leave dissimilar distances inside and out (speed-of-light communications out of a Level 4 window and into a Level 1 one could be faster than any 'direct' through-wall one, if allowed, and of course diffracted propogation only via door-portals would be slower), but we're already talking of [https://wiki.lspace.org/Empirical_Crescent wormholing between/across domains], so our only real issue is how/if ''arbitrary'' knocking-through of holes through walls can be allowed (once the building is somehow BS Johnsoned into existence, perhaps at some point necessitating at least a countable infinity of builders/decorators). [[Special:Contributions/141.101.98.105|141.101.98.105]] 10:45, 9 February 2024 (UTC)&lt;br /&gt;
:Third dimension to the rescue. If you gave the floors a bit of a slope, you could build this as a helix, with rooms stacked on top of each other. [[User:Jkshapiro|Jkshapiro]] ([[User talk:Jkshapiro|talk]]) 00:24, 26 December 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
One way to build this would be with robotics that alter the structure as the visitor moves, like a holodeck. This could give the perception of the visitor shrinking forever, and the robotics wouldn’t let them leave until they rewalked their entry path. Another way would be to just make the rooms get too tiny to enter and hide the missing ones around a corner. [[Special:Contributions/162.158.166.6|162.158.166.6]] 16:58, 8 February 2024 (UTC)&lt;br /&gt;
:I'm sure it could be done with the Gallifreyan technology that produced the TARDIS. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 17:39, 8 February 2024 (UTC)&lt;br /&gt;
:: Indeed: [https://static.wikia.nocookie.net/tardis/images/d/d2/The_Monk_cannot_get_into_his_TARDIS.JPG] {{unsigned|Jgharston|12:45, 13 February 2024}}&lt;br /&gt;
::: That sort of thing happens in [https://tardis.fandom.com/wiki/Flatline_(TV_story) nuWho era], too! [[Special:Contributions/141.101.98.76|141.101.98.76]] 13:08, 13 February 2024 (UTC)&lt;br /&gt;
:maybe somebody will 3d print a tiny one some day. i websearched but didn’t even get any hits for “robotic maze moving walls” ! this is surprising to me in this decade. [[Special:Contributions/172.71.142.15|172.71.142.15]]&lt;br /&gt;
&lt;br /&gt;
Has anyone else thought of a cabin log? The horror story kind, with a spiraling captain? [[User:Transgalactic|Transgalactic]] ([[User talk:Transgalactic|talk]]) 09:21, 9 February 2024 (UTC)&lt;br /&gt;
:Isn't the &amp;quot;cabin log&amp;quot; the scattered set of journals you find in some horror game where they get more and more deranged and incomprehensible until you find the writer as a boss gone mad with eldrich knowledge? [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 18:23, 5 June 2024 (UTC)&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2889:_Greenhouse_Effect&amp;diff=360064</id>
		<title>2889: Greenhouse Effect</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2889:_Greenhouse_Effect&amp;diff=360064"/>
				<updated>2024-12-22T01:53:35Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Not clear what &amp;quot;a. o.&amp;quot; means (maybe &amp;quot;alpha and omega&amp;quot;?) but the sentence works just fine without it.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2889&lt;br /&gt;
| date      = February 2, 2024&lt;br /&gt;
| title     = Greenhouse Effect&lt;br /&gt;
| image     = greenhouse_effect_2x.png&lt;br /&gt;
| imagesize = 740x315px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Once he had the answer, Arrhenius complained to his friends that he'd &amp;quot;wasted over a full year&amp;quot; doing tedious calculations by hand about &amp;quot;so trifling a matter&amp;quot; as hypothetical CO2 concentrations in far-off eras (quoted in Crawford, 1997).&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
This comic has [[:Category:Climate change|climate change as its topic, a recurring theme]] on xkcd. There is no 'joke' &amp;lt;em&amp;gt;per se&amp;lt;/em&amp;gt;, just a wry (and serious) observation on the timeline of climate change, and our understanding of it. The fact in question here is when science became aware of anthropogenic global warming and its primary cause.&lt;br /&gt;
&lt;br /&gt;
The comic depicts a timeline with three events:&lt;br /&gt;
* The introduction of the {{w|Watt steam engine}} in 1776. The comic takes it as the start of the {{w|Industrial Revolution}}, and the event that most directly ushered in the boom of fossil fuels' burning.&lt;br /&gt;
* [https://en.wikisource.org/wiki/On_the_Influence_of_Carbonic_Acid_in_the_Air_upon_the_Temperature_of_the_Ground The first quantitative prediction] of the {{w|greenhouse effect}} by {{w|Svante Arrhenius}} in January and April 1896 (that doubling CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; concentration would increase mean temperature by 5 to 6 °C, depending on latitude). Arrhenius drew on and included a summary of {{w|Arvid Högbom}}'s 1894 Swedish article, which dealt with carbon cycle over geological periods and first estimated annual global carbon emissions.&lt;br /&gt;
* The present day, early 2024.&lt;br /&gt;
&lt;br /&gt;
As the caption points out, less time elapsed between the start of the Industrial Revolution and the work by Arrhenius, than has elapsed since then. Some present-day climate discussions may cite [https://onlinelibrary.wiley.com/doi/abs/10.1111/j.2153-3490.1957.tb01849.x a 1957 paper by Revell and Seuss] as &amp;quot;the starting point&amp;quot; for modern inquiries into global warming. While it was more advanced and detailed, the comic notes &amp;quot;we figured out the greenhouse effect&amp;quot; 61 years prior; see both [https://folk.universitetetioslo.no/roberan/t/EarlyEstimates1.shtml Robbie 2018] and even longer {{w|History of climate change science}} which includes earlier, qualitative works.&lt;br /&gt;
&lt;br /&gt;
The implication, consistent with other [[:Category:Climate change|climate change themed xkcd comics]], is that humans have taken insufficient action to stop global warming despite knowing about it for more than a century, and understanding, at least intellectually, the consequences of inaction.&lt;br /&gt;
&lt;br /&gt;
The title text portrays Arrhenius as dismissive of his work. A reading of the reference cited (page 8 in [https://courses.seas.harvard.edu/climate/eli/Courses/EPS281r/Sources/Greenhouse-effect/Arrhenius/3-optional-Crawford-1997.pdf Crawford 1997]: 'Writing to a friend at the end of [1895], he found it &amp;quot;unbelievable that so trifling a matter has cost me a full year&amp;quot;.') suggests instead that Arrhenius was complaining about the unanticipated difficulty of answering what he thought initially was a simple question, about the historical (geological time) connection between carbon dioxide concentrations and global temperature. Per this reading, Arrhenius's complaint was about the work required to achieve the result, &amp;lt;em&amp;gt;not&amp;lt;/em&amp;gt; about the significance of the result. His interpretation of the significance, though, differed from today's (page 11 in Crawford 1997): &amp;quot;[Global warming will] allow our descendants, even if they only be those of a distant future [estimating the doubling time as 500 years], to live under a warmer sky and in a less harsh environment than we were granted&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[At the top of the comic a timeline is shown as a long line. It has three dots, one at each end a bit inside the end of the line and one close to the middle Each dot has a gray curved line going up to it from below. Below the end of these lines a year is given. And beneath the year is a caption. Above the time line are two gray double arrows going from three gray lines above each of the three dots. The lines are broken in the middle where a label is written.]&lt;br /&gt;
&lt;br /&gt;
:[Label of arrow that spans from first to second dot:]&lt;br /&gt;
:120 years&lt;br /&gt;
&lt;br /&gt;
:[Label of arrow that spans from second to third dot:]&lt;br /&gt;
:128 years&lt;br /&gt;
&lt;br /&gt;
:[Label for the first dot:]&lt;br /&gt;
:'''1776'''&lt;br /&gt;
:James Watt develops a steam engine that helps kick off the Industrial Revolution&lt;br /&gt;
&lt;br /&gt;
:[Label for the second dot:]&lt;br /&gt;
:'''1896'''&lt;br /&gt;
:Arvid Högbom and Svante Arrhenius note that industrial activity is adding CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; to the atmosphere, and calculate how much the Earth will heat up if the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; concentration doubles. Their answer closely matches modern estimates.&lt;br /&gt;
&lt;br /&gt;
:[Label for the third dot:]&lt;br /&gt;
:'''2024'''&lt;br /&gt;
:Today&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:We figured out the greenhouse effect closer to the start of the Industrial Revolution than to today.&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
&amp;lt;references/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Climate change]]&lt;br /&gt;
[[Category:Timelines]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2887:_Minnesota&amp;diff=359963</id>
		<title>2887: Minnesota</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2887:_Minnesota&amp;diff=359963"/>
				<updated>2024-12-20T01:21:32Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Transcript */ Removing incomplete tag and making a tiny change for style purposes&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2887&lt;br /&gt;
| date      = January 29, 2024&lt;br /&gt;
| title     = Minnesota&lt;br /&gt;
| image     = minnesota_2x.png&lt;br /&gt;
| imagesize = 673x260px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = In addition to 'squishy', after reviewing my submitted intraplate ground motion data, the National Geodetic Survey has politely asked me to stop using the word 'supple' so often when describing Midwestern states.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
[[Hairy]], [[Ponytail]], and [[Cueball]] are in a business meeting of an unknown nature, but one which (it transpires) is unrelated to either geography, geology or geopolitical boundaries. Hairy asks if anyone has any other concerns, a common enough question to ask when trying to ensure that nobody at the meeting has still something to say that had not already been covered directly by the agenda or the resulting discussions.&lt;br /&gt;
&lt;br /&gt;
Cueball voices an opinion on Minnesota. Due to the {{w|post-glacial rebound}} present in Minnesota, this US state is apparently slowly decreasing in size. The humor comes from the fact that this may be a genuine concern to Cueball, but is completely unrelated to the topic of the meeting, is not really a 'problem' that has any practical significance, and in any case there is also no reasonable way to prevent this.{{Citation needed}} And yet Cueball clearly finds it important enough that &amp;quot;all meetings should be about Minnesota&amp;quot; until the 'problem' is solved.&lt;br /&gt;
&lt;br /&gt;
The title text implies that Cueball has also brought this issue up to the {{w|National Geodetic Survey}}; rather than commenting on his data or findings, they have simply requested that he stop using suggestive language in his papers. (&amp;quot;Supple&amp;quot; and &amp;quot;squishy&amp;quot; are sometimes used, especially in erotic literature, to describe certain body parts.)&amp;lt;sup&amp;gt;[&amp;lt;i&amp;gt;citation greatly appreciated&amp;lt;/i&amp;gt;]&amp;lt;/sup&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The Midwestern states, particularly in areas like the {{w|New Madrid Seismic Zone}}, are subject to the movement of tectonic plates well within a tectonic plate boundary. While these areas are typically less active than boundary zones, they can still experience significant seismic activity. The flexible way the Earth's crust in these regions responds to tectonic stresses – gently stretching and flexing over centuries in response to deep stresses – could imaginatively be described as &amp;quot;supple.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Minnesota's northern border is legally defined in part by reference to geographical features, most notably {{w|Lake of the Woods}} and a chain of rivers and lakes connecting it to {{w|Lake Superior}}. As such, movement of these features due to glacial rebound may indeed be reducing Minnesota's size at a very gradual rate. Minnesota's southern border, in contrast, is legally defined as a line running at 43º 30′ N, which would not be affected by the motion of the land. Indeed, it is possible that glacial rebound is effectively moving land out of Minnesota and into Iowa, again at a very gradual rate.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Hairy standing in front of Ponytail and Cueball, who are sitting behind a desk]&lt;br /&gt;
:Hairy: Does anyone have any other concerns?&lt;br /&gt;
:Cueball: I'm concerned that Minnesota is getting shorter.&lt;br /&gt;
&lt;br /&gt;
:[A map of Minnesota beside Cueball, with arrows pointing from the northern and southern borders toward the middle]&lt;br /&gt;
:Cueball: Because of post-glacial crust rebound, the northern border is moving toward the southern border. It's less than an inch a decade, but I still don't like it.&lt;br /&gt;
:Cueball: Minnesota shouldn't be squishy.&lt;br /&gt;
&lt;br /&gt;
:[Hairy again standing in front of Ponytail and Cueball at the desk. Ponytail is looking at Cueball, whose finger is now raised in the air, gesturing]&lt;br /&gt;
:Hairy: Okay. Does anyone have any concerns related to the topic of this meeting?&lt;br /&gt;
:Cueball: All meetings should be about Minnesota until we resolve this.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Geography]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2884:_Log_Alignment&amp;diff=359632</id>
		<title>2884: Log Alignment</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2884:_Log_Alignment&amp;diff=359632"/>
				<updated>2024-12-17T00:19:18Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ No, it isn't&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2884&lt;br /&gt;
| date      = January 22, 2024&lt;br /&gt;
| title     = Log Alignment&lt;br /&gt;
| image     = log_alignment_2x.png&lt;br /&gt;
| imagesize = 351x312px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = A video can have a log scale that's misaligned with both the time AND space axes.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
In the comic, we see a background distribution of straight and parallel (but notably off-orthogonal) lines, such as might normally define the log-magnitude on a log-log or semi-log graph. But there are no perpendicular gradations ''and'' the bar graph drawn upon it appears to have no relation with the background, drawn distorted in an almost {{w|Salvador Dalí|Dalíesque}} manner, as if it were a projection of one twisted in 3d space. Both its bars and the base/vertical axes seem to have no relation to the supposed underlying log-scale.&lt;br /&gt;
&lt;br /&gt;
With the slight exception of the bar tops crossing the log lines at an angle, and the curved vertical axis having {{w|graduation (scale)|graduation ticks}} that bear no linear ''or'' log relation with the intersecting background, the distorted bars only travel unidirectionally across the underlying parallels and ''could'' feasibly be read as indicating a definitive magnitude (or range) of some kind. Or at least could with number-labels to give an idea of what values to associate with each log-line. That two bars appear from outside the frame of the comic (the base axis having fallen out of the bottom of the frame) might not even matter, so long as we can work out what quality or sample each of the bars represents (being similarly unlabeled).&lt;br /&gt;
&lt;br /&gt;
The humour in the comic is that a more practical log-chart can be seen as the result of logarithmically compressing a normal chart in one or both axes. Normal parallel and perpendicular axes remain straight lines when doing this; lines that aren't parallel or perpendicular to the squishing process get turned into curves of the exact kind depicted.  A plot ''can'' be made according to measures not consistent with the graph axes, especially where [https://www.researchgate.net/figure/Curvature-introduced-by-pen-type-recording-system-Comparison-of-a-raw-seismogram-showing_fig5_364100386 other factors dictate the plotting], but then it is more common to make use of {{w|Graph paper#Examples|variant grid systems}}.&lt;br /&gt;
&lt;br /&gt;
Skewed log charts are real and occur in fields of science with useful applications. For example, a &amp;quot;{{w|Skew-T log-P diagram}}&amp;quot; depicts the relationship between temperature and pressure of a parcel of air in the atmosphere. On this chart, the x-axis is skewed with relation to the rest of the graph, and its isotherms, or lines of equal temperature, slant diagonally upwards and to the right of the diagram. The y-axis is normal and represents pressure on a log scale. A more detailed explanation can be found [https://www.noaa.gov/jetstream/upperair/skew-t-log-p-diagrams here], and there are several related pressure/temperature charts which optimise the dimensional comparisons and skewings to allow for the results of somewhat codependent variables (such as normal changes along a slice of altitudes) to produce lines that are more recognisably consistent, or revealing of actual signature changes that provide more key information to those who study such diagrams.&lt;br /&gt;
&lt;br /&gt;
The title text further reinforces the concept of misalignment by stating that the time axis represented by the progressive changing of a moving image can be misaligned against (by the other elements of the data within the video itself, including any log scale element), adding at least one further dimension through which to twist and skew axial and non-axial components of such a dynamic graph.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Distorted bar graph on top of gray log scale lines in the background that are slightly tilted, with the lower ends on the left]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:There's actually no rule in math that says your log scales have to be aligned with your graph axes.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Math]]&lt;br /&gt;
[[Category:Bar charts]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2881:_Bug_Thread&amp;diff=358135</id>
		<title>2881: Bug Thread</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2881:_Bug_Thread&amp;diff=358135"/>
				<updated>2024-11-29T03:24:59Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Trimming the explanation&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2881&lt;br /&gt;
| date      = January 15, 2024&lt;br /&gt;
| title     = Bug Thread&lt;br /&gt;
| image     = bug_thread_2x.png&lt;br /&gt;
| imagesize = 317x495px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = After some account issues, we've added 6 new people from the beach house rental website support forum.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
A bug thread is an online discussion about unintended behavior in a program, also known as a {{w|Software bug|bug}}. Bug threads may be found on bug trackers, such as Github or Bugzilla, on technical forums such as StackOverflow, or on general product user forums.&lt;br /&gt;
&lt;br /&gt;
Most bug threads have a rule to only leave a comment if you have something insightful to add,{{Actual citation needed}} such as being able to reproduce how the bug occurs or possible solutions to resolving it. In practice, this rule is often ignored and many threads end up with multiple people simply commenting that the bug still exists. It could be argued that this, in itself, is additional information, since it gives an indication of how widespread and/or persistent the problem is. Those who are perfectly content with a product have few reasons to participate in a bug thread, so those seeking help will tend to mostly read posts by the others who are, or have been, seeking help, if no one has provided a proper solution.&lt;br /&gt;
&lt;br /&gt;
In this comic, multiple people are reporting the problem, as we can tell from their distinctive profile pictures. Most of the visible posts simply state the poster's inclusion in the list of those affected by the bug, either with a one word reply (&amp;quot;Same&amp;quot;), or a shorthand expression of emotion (&amp;quot;{{w|Like button|+1}}. So frustrating.&amp;quot;). Some posters, however, do provide somewhat more useful information: existing troubleshooting methods haven't worked for them, with one even providing three links to the specific solutions that they have already unsuccessfully tried.&lt;br /&gt;
&lt;br /&gt;
Although we cannot see the unreadable timestamp information on the posts, one author (the penultimate, using a [[White Hat]] image) makes the observation that the problem has now been ongoing for five years. This is followed by a [[Cueball]]-identified user proposing that this group of like-minded individuals may enjoy meeting up at a {{w|beach house}} in the physical world. Whether this is [[Randall]], or not, his own follow-up comic commentary suggests that bonding over such adversity is as good a reason for friendship as any.&lt;br /&gt;
&lt;br /&gt;
The title text reveals that the meet-up was actually attempted. However, ironically, some of the participants seem to have run into &amp;quot;account issues&amp;quot; when trying to make their reservations, meaning that the website where they tried to rent the beach house wasn't working properly for them. Fortunately that website contained an online support forum like the one in the comic, and six participants from that forum ended up joining the social group. It is unclear whether the meet-up actually ended up occurring, but at least everyone involved now has some new friends.&lt;br /&gt;
&lt;br /&gt;
[[979: Wisdom of the Ancients]] also refers to an online discussion thread about a bug, and [[1305: Undocumented Feature]] also involves a tech support forum which is eventually used only for socializing.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|character names}}&lt;br /&gt;
:[Part of a discussion thread in progress on an online forum is shown. Each comment has the writer's avatar to the left of the text and small illegible text immediately above the text. Part of the first comment's text is cut off at the top.]&lt;br /&gt;
:Commenter #1: Same issue here.&lt;br /&gt;
:Commenter #2: I'm having this problem too. None of the posted fixes work.&lt;br /&gt;
:Commenter #3: Same.&lt;br /&gt;
:Commenter #4: +1. So frustrating.&lt;br /&gt;
:Commenter #5: I'm still having this. Did you all ever figure out a fix?&lt;br /&gt;
:Commenter #6: Same problem as everyone. I tried the steps in the posts &amp;lt;u&amp;gt;here&amp;lt;/u&amp;gt;, &amp;lt;u&amp;gt;here&amp;lt;/u&amp;gt;, and &amp;lt;u&amp;gt;here&amp;lt;/u&amp;gt;. Nothing.&lt;br /&gt;
:Commenter #7: Add me to the list.&lt;br /&gt;
:Commenter #8: Same. Ugh. Can't believe this thread is 5 years old now.&lt;br /&gt;
:Commenter #9: Where does everyone live? Do we want to get a beach house for a weekend or something?&lt;br /&gt;
:[Caption below the image:]&lt;br /&gt;
:At some point, you just have to give up on fixing the bug and embrace the fact that you have dozens of new friends.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Internet]]&lt;br /&gt;
[[Category:Social interactions]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357147</id>
		<title>2875: 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357147"/>
				<updated>2024-11-18T02:13:39Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Simplify&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;noinclude&amp;gt;:''This page refers to the comic named &amp;quot;2024&amp;quot;. For comic #2024, see [[2024: Light Hacks]].''&amp;lt;/noinclude&amp;gt;&lt;br /&gt;
{{comic&lt;br /&gt;
| number    = 2875&lt;br /&gt;
| date      = January 1, 2024&lt;br /&gt;
| title     = 2024&lt;br /&gt;
| image     = 2024_2x.png&lt;br /&gt;
| imagesize = 740x553px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This [[:Category:New Year|New Year comic]] starts off almost like a &amp;quot;[[:Category:Comics to make one feel old|doesn't time fly?]]&amp;quot; scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. This, though, is the only reference to [[#Trivia|New Year]] in the comic, and serves only as a pretext for [[Cueball]] to note that they are now in an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they &amp;quot;keep on happening&amp;quot;, which is true but (normally) unsurprising.&lt;br /&gt;
&lt;br /&gt;
On top of this, Ponytail seems to have not been aware of the passing of two whole election cycles as the discussion focuses upon {{w|Barack Obama}}, the President before Presidents Trump and Biden, who left office 7 (!) years ago, on January 20th, 2017. Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.&lt;br /&gt;
&lt;br /&gt;
In the second half of the comic Cueball and Ponytail discuss whether Obama is even the same person seven years after he was last president. Like the mythical {{w|Ship of Theseus}}, mentioned by Ponytail, which gradually had all of its parts replaced over many years, most of Obama's constituent cells have been replaced since he was last president. Ponytail is thus looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. &lt;br /&gt;
&lt;br /&gt;
Cueball questions if the cell replacement isn't a myth, and at least some cells may remain the same, especially those making up the enamel in the teeth, which he believes has a half-life of over 30 years, meaning that even after 30 years only half of the cells in your enamel have been replaced. &lt;br /&gt;
&lt;br /&gt;
But even when Ponytail's approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.&lt;br /&gt;
&lt;br /&gt;
In order to facilitate the latter goal, Ponytail announces her intention to consult both a dentist (presumably for getting the teeth replaced) and a lawyer (perhaps to establish that Obama could thus run for president again, hopefully in advance). Although, in Ponytail's frame of mind, it could also be to consult with the dentist to clear up the currently theoretical issues about tooth-biology, and the lawyer might be asked to serve an enforcement notice to force Obama to undergo the 'treatment'.&lt;br /&gt;
&lt;br /&gt;
Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball appears to be about to suggest that the {{w|Supreme Court of the United States|Supreme Court }} is about to pre-emptively block her plan, but instead turns out, in a play on the word 'block', to be saying that they will be unanimous in blocking her phone number so that she cannot contact them again, suggesting that this just the latest in a string of ridiculous proposals she has attempted to bring before them, and they have finally lost patience. The Supreme Court being unanimous on any issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].&amp;lt;!-- I looked for a decent post-2021 summary, but could not find one, perhaps someone else could check and replace/rephrase if they can establish better search engine skills--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Although Cueball (and thus [[Randall]]) seems to think the suggestion has no merit, it is public knowledge that Randall did [https://blog.xkcd.com/2008/01/28/obama/ endorse Obama] and in [[1756: I'm With Her]], he again showed that he prefers Democratic Presidents at least over [[Donald Trump]]. That he is not happy about Trump has been obvious in many comics ([[2220: Imagine Going Back in Time]] for an example), and Trump might be running for president again, in this election year, so it is not unlikely that Randall would wish that it was possible to get Obama back as president if in any way possible.&lt;br /&gt;
&lt;br /&gt;
The title text combines two {{w|George Washington}} references.  The first part of the sentence is the beginning of the mundane but true claim that &amp;quot;It wasn't originally constitutionally required, but presidents who have served two terms have traditionally followed George Washington's example and not sought a third term.&amp;quot;  However, the title text veers off-course to the subject of {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific philosophical/legal problems established in the comic, were they real.  However, since Washington only ran for president twice, even if the 22nd amendment had been in effect, it would have been unnecessary!&lt;br /&gt;
&lt;br /&gt;
It goes almost without saying that no one has yet even ''attempted'' to carry out this plan. Only one President has exceeded the 2-term limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely ([[Definitely|and sometimes defiantly]]) tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet attempted ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Ponytail and Cueball are walking.]&lt;br /&gt;
:Ponytail: So this is 2024.&lt;br /&gt;
:Cueball: Yup. Guess it's an election year now.&lt;br /&gt;
:Ponytail: Again? Man, those just keep happening, huh?&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball stop walking and Cueball has turned to face Ponytail.]&lt;br /&gt;
:Ponytail: Who's the president these days, anyway? Is it still Obama?&lt;br /&gt;
:Cueball: What? No? He hasn't been... How do you not...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball standing.]&lt;br /&gt;
:Ponytail: Darn, I liked him. Is he running this time?&lt;br /&gt;
:Cueball: No, he's not allowed to.&lt;br /&gt;
:Ponytail: He's not? Why?&lt;br /&gt;
:Cueball: Constitution.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Ponytail who checks her smartphone held up in one hand. The text she is reading on her phone is shown in a square speech bubble above her head, with a jagged thin snip from the speech bubble extending from it down to above her smartphone.]&lt;br /&gt;
:Phone: ''Amendment 22''&lt;br /&gt;
:Phone: No person shall be elected to the office of the president more than twice&lt;br /&gt;
:Ponytail: What?? C'mon...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has raised her hand palm up towards Cueball.]&lt;br /&gt;
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?&lt;br /&gt;
:Ponytail: Maybe &amp;quot;no person shall be elected more than twice&amp;quot; isn't a prohibition, it's more of an observation, like &amp;quot;you can't step in the same river twice.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Cueball.]&lt;br /&gt;
:Cueball: Isn't the cell thing a myth?&lt;br /&gt;
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has turned around and walks away from Cueball with a finger raised high.]&lt;br /&gt;
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!&lt;br /&gt;
:Cueball: The Supreme Court is about to vote 9-0 to block your number.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*This is the first [[:Category:New Year|New Year comic]] using the year as the title since 2018. &lt;br /&gt;
**That was a break of six years after having [[:Category:Comics sharing name|used this kind of title]] for all even years between [[998: 2012|2012]] and [[1935: 2018|2018]] plus also in [[1779: 2017|2017]].&lt;br /&gt;
**So five times in seven years and then five years in a row without doing so.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:New Year]]&lt;br /&gt;
[[Category:Comics sharing name|2024]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Elections]]&lt;br /&gt;
[[Category:Politics]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Philosophy]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357146</id>
		<title>2875: 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357146"/>
				<updated>2024-11-18T02:10:42Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Reduce duplication&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;noinclude&amp;gt;:''This page refers to the comic named &amp;quot;2024&amp;quot;. For comic #2024, see [[2024: Light Hacks]].''&amp;lt;/noinclude&amp;gt;&lt;br /&gt;
{{comic&lt;br /&gt;
| number    = 2875&lt;br /&gt;
| date      = January 1, 2024&lt;br /&gt;
| title     = 2024&lt;br /&gt;
| image     = 2024_2x.png&lt;br /&gt;
| imagesize = 740x553px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This [[:Category:New Year|New Year comic]] starts off almost like a &amp;quot;[[:Category:Comics to make one feel old|doesn't time fly?]]&amp;quot; scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. This, though, is the only reference to [[#Trivia|New Year]] in the comic, and serves only as a pretext for [[Cueball]] to note that they are now in an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they &amp;quot;keep on happening&amp;quot;, which is true but (normally) unsurprising.&lt;br /&gt;
&lt;br /&gt;
On top of this, Ponytail seems to have not been aware of the passing of two whole election cycles as the discussion focuses upon {{w|Barack Obama}}, the President before Presidents Trump and Biden, who left office 7 (!) years ago, on January 20th, 2017. Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.&lt;br /&gt;
&lt;br /&gt;
In the second half of the comic Cueball and Ponytail discuss whether Obama is even the same person seven years after he was last president. Like the mythical {{w|Ship of Theseus}}, mentioned by Ponytail, which gradually had all of its parts replaced over many years, most of Obama's constituent cells have been replaced since he was last president. Ponytail is thus looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. &lt;br /&gt;
&lt;br /&gt;
Cueball questions if the cell replacement isn't a myth, and at least some cells may remain the same, especially those making up the enamel in the teeth, which he believes has a half-life of over 30 years, meaning that even after 30 years only half of the cells in your enamel have been replaced. &lt;br /&gt;
&lt;br /&gt;
But even when Ponytail's approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.&lt;br /&gt;
&lt;br /&gt;
In order to facilitate the latter goal, Ponytail announces her intention to consult both a dentist (presumably for getting the teeth replaced) and a lawyer (perhaps to establish that Obama could thus run for president again, hopefully in advance). Although, in Ponytail's frame of mind, it could also be to consult with the dentist to clear up the currently theoretical issues about tooth-biology, and the lawyer might be asked to serve an enforcement notice to force Obama to undergo the 'treatment'. Her peculiar chain of logic might well also lead to one or other {{tvtropes|ThePlan|plan}} that is itself a total curveball and/or riddled with flaws.&lt;br /&gt;
&lt;br /&gt;
Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball appears to be about to suggest that the {{w|Supreme Court of the United States|Supreme Court }} is about to pre-emptively block her plan, but instead turns out, in a play on the word 'block', to be saying that they will be unanimous in blocking her phone number so that she cannot contact them again, suggesting that this just the latest in a string of ridiculous proposals she has attempted to bring before them, and they have finally lost patience. The Supreme Court being unanimous on any issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].&amp;lt;!-- I looked for a decent post-2021 summary, but could not find one, perhaps someone else could check and replace/rephrase if they can establish better search engine skills--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Although Cueball (and thus [[Randall]]) seems to think the suggestion has no merit, it is public knowledge that Randall did [https://blog.xkcd.com/2008/01/28/obama/ endorse Obama] and in [[1756: I'm With Her]], he again showed that he prefers Democratic Presidents at least over [[Donald Trump]]. That he is not happy about Trump has been obvious in many comics ([[2220: Imagine Going Back in Time]] for an example), and Trump might be running for president again, in this election year, so it is not unlikely that Randall would wish that it was possible to get Obama back as president if in any way possible.&lt;br /&gt;
&lt;br /&gt;
The title text combines two {{w|George Washington}} references.  The first part of the sentence is the beginning of the mundane but true claim that &amp;quot;It wasn't originally constitutionally required, but presidents who have served two terms have traditionally followed George Washington's example and not sought a third term.&amp;quot;  However, the title text veers off-course to the subject of {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific philosophical/legal problems established in the comic, were they real.  However, since Washington only ran for president twice, even if the 22nd amendment had been in effect, it would have been unnecessary!&lt;br /&gt;
&lt;br /&gt;
It goes almost without saying that no one has yet even ''attempted'' to carry out this plan. Only one President has exceeded the 2-term limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely ([[Definitely|and sometimes defiantly]]) tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet attempted ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Ponytail and Cueball are walking.]&lt;br /&gt;
:Ponytail: So this is 2024.&lt;br /&gt;
:Cueball: Yup. Guess it's an election year now.&lt;br /&gt;
:Ponytail: Again? Man, those just keep happening, huh?&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball stop walking and Cueball has turned to face Ponytail.]&lt;br /&gt;
:Ponytail: Who's the president these days, anyway? Is it still Obama?&lt;br /&gt;
:Cueball: What? No? He hasn't been... How do you not...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball standing.]&lt;br /&gt;
:Ponytail: Darn, I liked him. Is he running this time?&lt;br /&gt;
:Cueball: No, he's not allowed to.&lt;br /&gt;
:Ponytail: He's not? Why?&lt;br /&gt;
:Cueball: Constitution.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Ponytail who checks her smartphone held up in one hand. The text she is reading on her phone is shown in a square speech bubble above her head, with a jagged thin snip from the speech bubble extending from it down to above her smartphone.]&lt;br /&gt;
:Phone: ''Amendment 22''&lt;br /&gt;
:Phone: No person shall be elected to the office of the president more than twice&lt;br /&gt;
:Ponytail: What?? C'mon...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has raised her hand palm up towards Cueball.]&lt;br /&gt;
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?&lt;br /&gt;
:Ponytail: Maybe &amp;quot;no person shall be elected more than twice&amp;quot; isn't a prohibition, it's more of an observation, like &amp;quot;you can't step in the same river twice.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Cueball.]&lt;br /&gt;
:Cueball: Isn't the cell thing a myth?&lt;br /&gt;
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has turned around and walks away from Cueball with a finger raised high.]&lt;br /&gt;
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!&lt;br /&gt;
:Cueball: The Supreme Court is about to vote 9-0 to block your number.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*This is the first [[:Category:New Year|New Year comic]] using the year as the title since 2018. &lt;br /&gt;
**That was a break of six years after having [[:Category:Comics sharing name|used this kind of title]] for all even years between [[998: 2012|2012]] and [[1935: 2018|2018]] plus also in [[1779: 2017|2017]].&lt;br /&gt;
**So five times in seven years and then five years in a row without doing so.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:New Year]]&lt;br /&gt;
[[Category:Comics sharing name|2024]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Elections]]&lt;br /&gt;
[[Category:Politics]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Philosophy]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357145</id>
		<title>2875: 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=357145"/>
				<updated>2024-11-18T02:08:28Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Removing amusing but distracting reference to other elections&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;noinclude&amp;gt;:''This page refers to the comic named &amp;quot;2024&amp;quot;. For comic #2024, see [[2024: Light Hacks]].''&amp;lt;/noinclude&amp;gt;&lt;br /&gt;
{{comic&lt;br /&gt;
| number    = 2875&lt;br /&gt;
| date      = January 1, 2024&lt;br /&gt;
| title     = 2024&lt;br /&gt;
| image     = 2024_2x.png&lt;br /&gt;
| imagesize = 740x553px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This [[:Category:New Year|New Year comic]] starts off almost like a &amp;quot;[[:Category:Comics to make one feel old|doesn't time fly?]]&amp;quot; scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. This, though, is the only reference to [[#Trivia|New Year]] in the comic, and serves only as a pretext for [[Cueball]] to note that they are now in an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they &amp;quot;keep on happening&amp;quot;, which is true but (normally) unsurprising.&lt;br /&gt;
&lt;br /&gt;
On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President, before Presidents Biden and Trump. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.&lt;br /&gt;
&lt;br /&gt;
In the second half of the comic Cueball and Ponytail discuss whether Obama is even the same person seven years after he was last president. Like the mythical {{w|Ship of Theseus}}, mentioned by Ponytail, which gradually had all of its parts replaced over many years, most of Obama's constituent cells have been replaced since he was last president. Ponytail is thus looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. &lt;br /&gt;
&lt;br /&gt;
Cueball questions if the cell replacement isn't a myth, and at least some cells may remain the same, especially those making up the enamel in the teeth, which he believes has a half-life of over 30 years, meaning that even after 30 years only half of the cells in your enamel have been replaced. &lt;br /&gt;
&lt;br /&gt;
But even when Ponytail's approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.&lt;br /&gt;
&lt;br /&gt;
In order to facilitate the latter goal, Ponytail announces her intention to consult both a dentist (presumably for getting the teeth replaced) and a lawyer (perhaps to establish that Obama could thus run for president again, hopefully in advance). Although, in Ponytail's frame of mind, it could also be to consult with the dentist to clear up the currently theoretical issues about tooth-biology, and the lawyer might be asked to serve an enforcement notice to force Obama to undergo the 'treatment'. Her peculiar chain of logic might well also lead to one or other {{tvtropes|ThePlan|plan}} that is itself a total curveball and/or riddled with flaws.&lt;br /&gt;
&lt;br /&gt;
Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball appears to be about to suggest that the {{w|Supreme Court of the United States|Supreme Court }} is about to pre-emptively block her plan, but instead turns out, in a play on the word 'block', to be saying that they will be unanimous in blocking her phone number so that she cannot contact them again, suggesting that this just the latest in a string of ridiculous proposals she has attempted to bring before them, and they have finally lost patience. The Supreme Court being unanimous on any issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].&amp;lt;!-- I looked for a decent post-2021 summary, but could not find one, perhaps someone else could check and replace/rephrase if they can establish better search engine skills--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Although Cueball (and thus [[Randall]]) seems to think the suggestion has no merit, it is public knowledge that Randall did [https://blog.xkcd.com/2008/01/28/obama/ endorse Obama] and in [[1756: I'm With Her]], he again showed that he prefers Democratic Presidents at least over [[Donald Trump]]. That he is not happy about Trump has been obvious in many comics ([[2220: Imagine Going Back in Time]] for an example), and Trump might be running for president again, in this election year, so it is not unlikely that Randall would wish that it was possible to get Obama back as president if in any way possible.&lt;br /&gt;
&lt;br /&gt;
The title text combines two {{w|George Washington}} references.  The first part of the sentence is the beginning of the mundane but true claim that &amp;quot;It wasn't originally constitutionally required, but presidents who have served two terms have traditionally followed George Washington's example and not sought a third term.&amp;quot;  However, the title text veers off-course to the subject of {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific philosophical/legal problems established in the comic, were they real.  However, since Washington only ran for president twice, even if the 22nd amendment had been in effect, it would have been unnecessary!&lt;br /&gt;
&lt;br /&gt;
It goes almost without saying that no one has yet even ''attempted'' to carry out this plan. Only one President has exceeded the 2-term limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely ([[Definitely|and sometimes defiantly]]) tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet attempted ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Ponytail and Cueball are walking.]&lt;br /&gt;
:Ponytail: So this is 2024.&lt;br /&gt;
:Cueball: Yup. Guess it's an election year now.&lt;br /&gt;
:Ponytail: Again? Man, those just keep happening, huh?&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball stop walking and Cueball has turned to face Ponytail.]&lt;br /&gt;
:Ponytail: Who's the president these days, anyway? Is it still Obama?&lt;br /&gt;
:Cueball: What? No? He hasn't been... How do you not...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail and Cueball standing.]&lt;br /&gt;
:Ponytail: Darn, I liked him. Is he running this time?&lt;br /&gt;
:Cueball: No, he's not allowed to.&lt;br /&gt;
:Ponytail: He's not? Why?&lt;br /&gt;
:Cueball: Constitution.&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Ponytail who checks her smartphone held up in one hand. The text she is reading on her phone is shown in a square speech bubble above her head, with a jagged thin snip from the speech bubble extending from it down to above her smartphone.]&lt;br /&gt;
:Phone: ''Amendment 22''&lt;br /&gt;
:Phone: No person shall be elected to the office of the president more than twice&lt;br /&gt;
:Ponytail: What?? C'mon...&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has raised her hand palm up towards Cueball.]&lt;br /&gt;
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?&lt;br /&gt;
:Ponytail: Maybe &amp;quot;no person shall be elected more than twice&amp;quot; isn't a prohibition, it's more of an observation, like &amp;quot;you can't step in the same river twice.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
:[Zoom in on the upper part of Cueball.]&lt;br /&gt;
:Cueball: Isn't the cell thing a myth?&lt;br /&gt;
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.&lt;br /&gt;
&lt;br /&gt;
:[Ponytail has turned around and walks away from Cueball with a finger raised high.]&lt;br /&gt;
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!&lt;br /&gt;
:Cueball: The Supreme Court is about to vote 9-0 to block your number.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*This is the first [[:Category:New Year|New Year comic]] using the year as the title since 2018. &lt;br /&gt;
**That was a break of six years after having [[:Category:Comics sharing name|used this kind of title]] for all even years between [[998: 2012|2012]] and [[1935: 2018|2018]] plus also in [[1779: 2017|2017]].&lt;br /&gt;
**So five times in seven years and then five years in a row without doing so.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:New Year]]&lt;br /&gt;
[[Category:Comics sharing name|2024]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Elections]]&lt;br /&gt;
[[Category:Politics]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Philosophy]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2874:_Iceland&amp;diff=357099</id>
		<title>2874: Iceland</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2874:_Iceland&amp;diff=357099"/>
				<updated>2024-11-17T03:13:44Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Trimming the explanation&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2874&lt;br /&gt;
| date      = December 29, 2023&lt;br /&gt;
| title     = Iceland&lt;br /&gt;
| image     = iceland_2x.png&lt;br /&gt;
| imagesize = 325x454px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The HVAC bill for installing the Gulf Stream was enormous.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
This comic is a reference to the strange geography of Iceland, owing to the sheer number of notable geographical features in such a small area, leading to the conclusion by Randall that Iceland had to have been created by a committee of various planetary scientists all vying to have their ideas implemented into their 'project', that being Iceland.&lt;br /&gt;
&lt;br /&gt;
In the comic, Cueball is giving a presentation to members of the committee, consisting of White Hat, Blondie, another Cueball, Megan and Hairbun, sitting around a table. It may have been inspired by Iceland being recently in the news for its {{w|2023 Sundhnúkur eruption|notable volcanic activity}}.&lt;br /&gt;
&lt;br /&gt;
Noting that being nearer the magnetic pole might more frequently provide you with an aurora, but the more severe (on the {{w|K-index#The Kp-index and estimated Kp-index|Kp index}}) geomagnetic storms invoke their auroral displays at lower latitudes. Once you get a Kp of 5 (out of a theoretical 9), Iceland may be far ''too'' close to the pole to fully appreciate the sight.&lt;br /&gt;
&lt;br /&gt;
{{w|HVAC}} in the title text is jargon for heating, ventilation, and air conditioning. The {{w|Gulf Stream}} is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and flows through the Straits of Florida and up the eastern coastline of the United States, then veers east near 36 degrees latitude and moves toward Northwest Europe as the North Atlantic Current, providing Iceland with a milder and more liveable climate than would be otherwise expected for its latitude. The electrical costs associated with providing airflow at a certain temperature, over such a vast area would prove incredibly expensive, not to mention the fact that the Gulf Stream is not in fact an artificial phenomenon powered by electricity, but rather a natural one.{{cn}}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Cueball is standing in front of a board and pointing to it with a stick. In front of him is a long table with White Hat, Blondie, another Cueball and Megan sitting on the long side of the table (the same side, the one away from the reader) with Hairbun sitting at the end of the table furthest from Cueball. All are sitting on office chairs and looking at Cueball. On the board there are two figures and some unreadable text. The top figure is an skewed ellipse with some dots inside. There is a label text beneath it. The next large figure depicts an island with a rift going down its middle. The rift extends on either side of the island. There is a label above it. Beneath this there is a box with four lines of unreadable text and above it a heading. Cueball's stick points to the island.]&lt;br /&gt;
:Cueball: Okay, we'll make it an island on a mid-ocean ridge to satisfy the mantle people and the oceanographers.&lt;br /&gt;
:Cueball-like man: But what about my glaciers?&lt;br /&gt;
:Cueball: We can just pile them on the volcanoes.&lt;br /&gt;
:Hairbun: Don't forget that it has to be near a pole - I was promised aurora!&lt;br /&gt;
&lt;br /&gt;
:[Caption below the comic:]&lt;br /&gt;
:Iceland was designed by a committee of planetary scientists that was trying to satisfy everyone.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Comics featuring Blondie]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Hairbun]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Volcanoes]]&lt;br /&gt;
[[Category:Geography]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Engineering]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2869:_Puzzles&amp;diff=356393</id>
		<title>2869: Puzzles</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2869:_Puzzles&amp;diff=356393"/>
				<updated>2024-11-11T01:24:39Z</updated>
		
		<summary type="html">&lt;p&gt;Jkshapiro: /* Explanation */ Remove irrelevant mention of AES&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2869&lt;br /&gt;
| date      = December 18, 2023&lt;br /&gt;
| title     = Puzzles&lt;br /&gt;
| image     = puzzles_2x.png&lt;br /&gt;
| imagesize = 328x455px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Why couldn't the amulet have been hidden by Aunt Alice, who understands modern key exchange algorithms?&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
Many children's books, especially those read by Randall's generation, feature in-story puzzles. Some of these hold up pretty well decades later, like the ones in {{w|Ellen Raskin}}'s award-winning mystery books for kids. Others, however, are…a lot less impressive. Randall doesn't specify which children's books have &amp;quot;terrible&amp;quot; puzzles, but the ''{{w|Hardy Boys}}'' series by Franklin W. Dixon, the ''{{w|Boxcar Children}}'' series by Gertrude Chandler Warner, and the ''{{w|Encyclopedia Brown}}'' series by Donald J. Sobol are all strong possibilities. (The Riddler in the 1960s ''{{w|Batman (TV series)|Batman}}'' TV series famously played the trope for laughs.)&lt;br /&gt;
&lt;br /&gt;
In the panel, characters from one such book (presumably a made-up example) are contemplating a puzzle involving somebody's Aunt Gertrude. The characters guess Gertrude's amulet must be hidden in the Ground, because that starts with a G, like Gertrude, and that they should diG a hole. These guesses are not very practical; it seems unlikely that Aunt Gertrude either (A) chose to be known indefinitely by a G-name purely as a clue about where she hid an amulet, or (B) was inspired by her own name to choose a vaguely relevant hiding place. Even if she ''did'', there are many other words that begin with G, such as Gulf, or Gull, or Get-a-Glider-and-Go-to-Greenland, or Get-a-nuke-and-bomb-the-USA, and any of these would be just as plausible &amp;quot;clues.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Moreover, once deciding, even more implausibly, that this &amp;quot;clue&amp;quot; is telling them to dig a hole in the ground, because 'dig' ends with a G, the search is not significantly narrowed as the world is a big place and &amp;quot;underground, somewhere&amp;quot; leaves a huge range of possible locations. As for the comic, perhaps it could be a Garden, which the characters don't figure out. If you're still lost, you may need {{tvtropes|XMarksTheSpot|at least one more letter}} to narrow the options down. All this leads us to Randall's point — that these connections made by the characters are tenuous at best and are unreasonable to make, especially as part of a riddle.&lt;br /&gt;
&lt;br /&gt;
Aunt Gertrude is probably named after a supporting character in the ''Hardy Boys'' series; the Aunt Gertrude in that series didn't set puzzles, but main characters Frank and Joe Hardy frequently had to decipher clues to find hidden objects. The name may also be a nod to Gertrude Chandler Warner, whose Boxcar Children are an adventurous group of mystery-solving kids like those in the comic.&lt;br /&gt;
&lt;br /&gt;
The title text references {{w|Alice and Bob|Alice}}, a fictional character commonly used in discussions about cryptography. In those discussions, Alice is often sending and receiving encrypted messages, and she would be expected to be able to make a better puzzle than the one shown in the comic. Alice and Bob and other characters from the same set are the reverse of case of Aunt Gertrude, in that they have been given their names to reflect a convenient A, B, C, ... pattern. They have been mentioned previously in xkcd, like in [[177: Alice and Bob]]. Using modern cryptography in lieu of riddles in children's stories was also mentioned in [[370: Redwall]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Possibly teenage versions of Hairy, Jill, Ponytail, and Cueball, listed from left to right, are standing in a line. Hairy is in a thinking pose, Jill faces Hairy, and Ponytail and Cueball are walking to the right; Cueball is pointing off-panel.]&lt;br /&gt;
:Hairy: Aunt Gertrude must have left a clue to the amulet's location.&lt;br /&gt;
:Jill: Hmm. Wait a minute.&lt;br /&gt;
:Jill: '''G'''ertrude. '''G'''.&lt;br /&gt;
:Hairy: As in &amp;quot;'''G'''round!&amp;quot;&lt;br /&gt;
:Jill: And &amp;quot;di'''G''' a hole!&amp;quot;&lt;br /&gt;
:Ponytail: I'll get a shovel!&lt;br /&gt;
:Cueball: To the yard!&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Some of the authors of books I read as a kid were '''''terrible''''' at designing puzzles.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]] &lt;br /&gt;
[[Category:Comics featuring Hairy]] &lt;br /&gt;
[[Category:Comics featuring Jill]] &lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Cryptography]]&lt;br /&gt;
[[Category:Kids]]&lt;/div&gt;</summary>
		<author><name>Jkshapiro</name></author>	</entry>

	</feed>