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		<updated>2026-04-16T21:37:49Z</updated>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2791:_Bookshelf_Sorting&amp;diff=369417</id>
		<title>2791: Bookshelf Sorting</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2791:_Bookshelf_Sorting&amp;diff=369417"/>
				<updated>2025-03-18T21:26:37Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: Undo revision 369383 by FaviFake (talk) A comic with actual books in it (albeit dismembered) being taken out of Category:Books?&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2791&lt;br /&gt;
| date      = June 19, 2023&lt;br /&gt;
| title     = Bookshelf Sorting&lt;br /&gt;
| image     = bookshelf_sorting_2x.png&lt;br /&gt;
| imagesize = 425x255px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Of course, I sort all my bookshelves the normal way, alphabetically (by first sentence).&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Some people like to sort their bookshelves by the visible color of the book's spine, for example by hue to create a rainbow effect. This is pleasing to the eye, but may be unhelpful when [https://www.youtube.com/watch?v=AYxmPHLU9oA trying to find a specific book]. Literary enthusiasts (AKA &amp;quot;Book People&amp;quot;) frequently dislike this system, because it emphasizes appearance at the expense of making books easy to find. On a philosophical level, treating books as decorations, rather than reading material, upsets many purists.  &amp;quot;Book people&amp;quot; are more likely to have a practical system for arranging their books, either by category, genre, title, author name, or some combination of those.  For a large library, a more rigorous organizational scheme such as the {{w|Dewey Decimal Classification}} might be used.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, [[Randall]] has found a ''much'' worse method of book organization - instead of sorting the books as discrete units, he has sorted their individual ''pages'' by number. This would require physically separating each book into its individual pages, and then organizing them into groups by page number. This effectively destroys every book, and requires anyone trying to read them to laboriously find each individual page (among many pages of the same number), and then replace it in the correct space after reading. Adding a new book would require individually placing potentially hundreds of pages. Where pages are not numbered, finding their place would be nearly impossible.&lt;br /&gt;
&lt;br /&gt;
From the picture, Randall's system appears to work by absolute physical page count, including the front and rear covers as 'pages'. All the front covers are on the left side, then the first internal leaf of each book (counted as the second page), then the second internal leaf, etc. This produces repeating patterns of taller and shorter loose-leaf pages, echoing the proportions of each cover, having gathered together a page of the same position in each different book. The back covers are mixed in to whatever group falls after the last internal leaf from the same book, and so are intermixed with pages from longer books. The left-most front cover matches the right-most back cover, the second front cover matches the 2nd-to-last back cover, etc. with the last of the front covers matching the first of the back covers. At the end, there are only the last pages of the longest book left, now all uniform in size, and its rear cover. &lt;br /&gt;
&lt;br /&gt;
The caption claims that &amp;quot;book people&amp;quot; get way angrier at this system, likely because it involves physically destroying books, rendering them almost unreadable. People with a strong affinity for books are often upset at volumes being treated with such disrespect. &lt;br /&gt;
&lt;br /&gt;
In the title text Randall claims he sorts his bookshelf alphabetically, but by the first '''sentence'''. He describes this as &amp;quot;the normal way&amp;quot;, even though the typical practice is to sort books either by title or author. Some books do have very well-known first lines, so sorting by first line could be used to demonstrate a level of literary sophistication on the part of the bookshelf owner, but could hardly be considered &amp;quot;normal&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A bookshelf hanging on a wall is shown. It is covered almost from left to right but not with ordinary books. To the left there are 11 covers next to each other without any paper between them. They have different heights and shades of gray. After the last of these there follows many leaves of paper of differing heights similarly to that of the covers. The top of the papers thus form a wave shape with more than twenty peaks before they reach another cover. After that there follows similar patterns with paper in different height and then a cover in between more papers. But there is a much shorter distance between the first and second cover than before the first cover, after the initial 11 covers. The next two covers are close to the first, then there is a longer stretch of paper to the fourth, much less to the fifth, and then the next three covers comes very close. There is again quite long distance to the ninth and tenth cover, and here the number of different heights for the paper are clearly less than the previous paper stretches. Finally before the last and 11th cover all the paper, not much of it though, are of the same height, and just a bit lower than the final cover. The 11 covers at the start matches the 11 covers later and they comes in reverse order throughout the paper stretches as they are sorted to begin with, so the first and last cover matches, as does number 2 and the second last etc. There is a caption beneath the panel:]&lt;br /&gt;
:Book people hate seeing books sorted by colors, but it turns out they get ''way'' more angry if you sort the pages by number.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
Sorting by first line was, in fact, a common sorting method before books had titles, known as {{w|Incipit}}. In modern times, however, that method is wildly obsolete, as books are almost always identified by titles, few people memorize the opening lines of their books, and a film titled ''{{w|The Hobbit|In a hole in the ground there lived a hobbit}}'' would not receive any funding.{{Citation needed}} However, {{w|papal encyclicals}} are still named after their first words, and thus would be sorted after their first sentence. For example, the encyclical titled ''{{w|Quanta Cura}}'' begins with &amp;quot;''Quanta cura'' ac pastorali vigilantia Romani Pontifices Prædecessores Nostri, exsequentes [...]&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
In somewhat similar fashion, the 114 chapters of the {{w|Quran}} are roughly sorted by their length. American church hymnals list hymns by relatively meaningless numbers, but then index them by tune name, text title, first line and meter.&lt;br /&gt;
&lt;br /&gt;
Other pop culture references to sorting by first sentence occur in the Good Omens TV show season 2 episode 2, where the archangel Gabriel, while suffering from amnesia, reorganizes the books in the bookshop alphabetically by first sentence to pass the time.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Books]]&lt;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3004:_Wells&amp;diff=355008</id>
		<title>Talk:3004: Wells</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:3004:_Wells&amp;diff=355008"/>
				<updated>2024-10-29T09:12:02Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: comment and question&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;
&lt;br /&gt;
We definitely need some funny explanation for wells and boreholes. Come on, people, you know the drill! [[Special:Contributions/172.70.85.139|172.70.85.139]] 14:50, 28 October 2024 (UTC)&lt;br /&gt;
:insert laugh track here [[User:Psychoticpotato|P?sych??otic?pot??at???o ]] ([[User talk:Psychoticpotato|talk]]) 14:59, 28 October 2024 (UTC)&lt;br /&gt;
:Who're you calling a borehole? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:15, 28 October 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
plot convenience 💔 [[User:CalibansCreations|'''&amp;lt;span style=&amp;quot;color:#ff0000;&amp;quot;&amp;gt;Caliban&amp;lt;/span&amp;gt;''']] ([[User talk:CalibansCreations|talk]]) 17:56, 28 October 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Fortunately there aren't many Hg wells. [[Special:Contributions/162.158.134.243|162.158.134.243]] 18:05, 28 October 2024 (UTC)&lt;br /&gt;
:The only ones that existed are gone now, although they ''did'' survive an alien attack. [[User:Psychoticpotato|P?sych??otic?pot??at???o ]] ([[User talk:Psychoticpotato|talk]]) 01:46, 29 October 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
FYI: the &amp;quot;Random&amp;quot; button currently seems to be broken. [[Special:Contributions/162.158.154.244|162.158.154.244]] 18:08, 28 October 2024 (UTC)&lt;br /&gt;
:Aaaaaaaaaand it's back again. huh. [[Special:Contributions/162.158.159.5|162.158.159.5]] 18:15, 28 October 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
The similarity with C&amp;amp;H is a bit superficial. Baby humans instinctively drink from their mother's breast, baby calves go to cow udders, and the similarity between the two fluids is pretty obvious. So it's not as random as drinking whatever clear liquid you find underground. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 19:15, 28 October 2024 (UTC)&lt;br /&gt;
:While your logic does make sense on the surface, once you actally aply it.... the similarity between animals mating and humans is pretty obvious.... We stop drinking milk from our mothers as a child and drinking it again is considered very strange, so it would be even more strange to start drinking a different &amp;quot;mothers&amp;quot; milk. {{unsigned|Apollo11|22:39, 28 October 2024 (UTC))}}&lt;br /&gt;
:It's the same with the joke about eggs, if predators eat them, it's not far-fetched to think we might be able to as well [[Special:Contributions/141.101.98.104|141.101.98.104]]&lt;br /&gt;
&lt;br /&gt;
Seriously though, how did people discover wells? Some internet says from animals that dig for water, but it's still impressive [[Special:Contributions/141.101.98.104|141.101.98.104]]&lt;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2890:_Relationship_Advice&amp;diff=334407</id>
		<title>2890: Relationship Advice</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2890:_Relationship_Advice&amp;diff=334407"/>
				<updated>2024-02-07T05:05:41Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: /* Explanation */ Re-relinked&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2890&lt;br /&gt;
| date      = February 5, 2024&lt;br /&gt;
| title     = Relationship Advice&lt;br /&gt;
| image     = relationship_advice_2x.png&lt;br /&gt;
| imagesize = 740x241px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Good to be a little wary of advice that sounds too much like a self pep talk.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a RELATIONSHIP WITH A JOB IN THE FINE ARTS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
In this comic, [[White Hat]], [[Cueball]], and [[Ponytail]] can be seen having a conversation about relationships. White Hat expresses the opinion that &amp;quot;relationships aren't easy&amp;quot;. The others accept this advice, which is generally accepted as a reasonable view: two people are always going to have at least some difference in opinions, desires and needs that need to be communicated, negotiated and worked out. This requires mutual effort and some level of compromise in any healthy and successful relationship. &lt;br /&gt;
&lt;br /&gt;
In the subsequent frames, however, White Hat continues to push the matter, describing relationships in increasingly unpleasant terms, starting with calling them &amp;quot;constant work&amp;quot; and ultimately calling it a &amp;quot;crushing burden&amp;quot;. Cueball and Ponytail correspondingly agree with him less, and instead begin to worry about him. &lt;br /&gt;
&lt;br /&gt;
White Hat's views on what is necessary and appropriate in relationships appear to go to unhealthy extremes. While his initial comments about relationships requiring efforts are reasonable, the notion that relationships consist of endless, overwhelming effort is not. Rather than representing a realistic and healthy viewpoint, it turns into a fairly disturbing view of what relationships require. Cueball and Ponytail appear to suspect that White Hat may be describing a relationship that he's currently in or that has severed, and trying to rationalize an unhealthy situation by telling himself that &amp;quot;this is normal&amp;quot;. &lt;br /&gt;
&lt;br /&gt;
When someone is in an abusive relationship, they may struggle to see that the relationship is abusive, often confusing genuinely destructive behavior with normal relationship troubles. There are various reasons this may occur, some people experience {{w|Traumatic bonding}}, some have spent so much time in or around unhealthy relationships that they've come to seem 'normal', some experience various forms of {{W|Codependence}}. For people in such situations, help from friends and/or professional counselors is often necessary to allow them to even identify the situation they're in, and particularly to separate themselves from the situation.&lt;br /&gt;
&lt;br /&gt;
Seeing Randall’s often negative thoughts on [[223: Valentine's Day|Valentine’s Day]] and the [[1016: Valentine Dilemma|problems it produces]], it may not be a coincidence that this comic was released only nine days before the holiday. &lt;br /&gt;
&lt;br /&gt;
The title text explains that advice which focuses on remaining upbeat in a bad situation (like a &amp;quot;pep talk&amp;quot;), should give others pause. There's a good chance that the person giving such advice is trying to convince themselves that their situation is alright, rather than providing useful guidance for others. In this comic, this sentiment is seemingly applied to White Hat, whose &amp;quot;relationship advice&amp;quot; may be much more personal than such advice should reasonably be, and the reader is thus warned to take advice like this with a grain of salt. This is similar to [[449: Things Fall Apart]] where Cueball tells Megan &amp;quot;I love you&amp;quot; repeatedly and Megan points out he's only saying it to reassure ''himself'' rather than express it to her.&lt;br /&gt;
&lt;br /&gt;
This comic's title is reminiscent of [[Randall|Randall's]] [[:Category:Tips|Tips]] comics. Here though an advice rather than a tip, and thus not part of the tip category.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[White Hat, Cueball and Ponytail are walking. White Hat has his palm out.]&lt;br /&gt;
:White Hat: What you have to remember is, relationships aren't easy.&lt;br /&gt;
:Ponytail: Yeah, fair.&lt;br /&gt;
&lt;br /&gt;
:[Close-up of White Hat with his finger raised.] &lt;br /&gt;
:White Hat: They're hard. They require constant work.&lt;br /&gt;
:White Hat: A relationship is a job.&lt;br /&gt;
:Off-panel voice: I guess...&lt;br /&gt;
&lt;br /&gt;
:[White Hat has stopped walking and is facing Cueball and Ponytail standing a bit further away.]&lt;br /&gt;
:White Hat: It's a challenge that feels overwhelming. It's a crushing burden.&lt;br /&gt;
:Cueball: Umm.&lt;br /&gt;
&lt;br /&gt;
:[White Hat has his arms raised while still facing Cueball and Ponytail.]&lt;br /&gt;
:White Hat: A relationship is a grueling ordeal.&lt;br /&gt;
:Cueball: ...Who are you trying to convince, exactly?&lt;br /&gt;
:Ponytail: Yeah, are '''''you''''' okay?&lt;br /&gt;
:White Hat: I'm '''''fine!''''' This is '''''normal!'''''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Social interactions]]&lt;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2878:_Supernova&amp;diff=332659</id>
		<title>2878: Supernova</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2878:_Supernova&amp;diff=332659"/>
				<updated>2024-01-11T00:39:58Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: Undo revision 332651 by 172.68.34.61 (talk) ...no? Why?&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2878&lt;br /&gt;
| date      = January 8, 2024&lt;br /&gt;
| title     = Supernova&lt;br /&gt;
| image     = supernova_2x.png&lt;br /&gt;
| imagesize = 348x227px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = They're a little cagey about exactly where the crossover point lies relative to the likelihood of devastating effects on the planet.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by A CAGEY MOSTLY HAPPY ASTRONOMER - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
A {{w|supernova}} occurs when a heavy star can no longer produce enough energy to fight its own gravity, e.g. because its fuel runs out ({{w|type II supernova|type II}}) or because it has accreted too much mass from a binary companion ({{w|type Ia supernova|type Ia}}). The collapsing mass leads to a violent explosion, one of the most interesting events for astronomers to observe and one that can be used to glean information about the universe. &lt;br /&gt;
&lt;br /&gt;
At first glance, the curved line on this graph might match that of the typical {{w|light curve}} of a type Ia supernova, constructed by plotting the brightness of the supernova as a function of time, with negative values indicating a logarithmic luminosity scale (below zero means a linear luminosity of less than the unit amount). In the event of a supernova, a star (which may previously have been unremarkable) becomes notably bright over a short period of time before trailing off again to leave a stellar remnant and expanding cloud of ejecta. Around the time of this comic's release new constraints on the expansion of the universe from the observation of type Ia supernovae were [https://news.fnal.gov/2024/01/final-supernova-results-from-dark-energy-survey-offer-unique-insights-into-the-expansion-of-the-universe/ published], which used the regular shape of their light curves to establish a distance scale.&lt;br /&gt;
&lt;br /&gt;
However, this comic reimagines the shape of a light curve graph to depict the relationship between the distance of supernovae from Earth, and the consequent happiness of astronomers, which happens to take a similar form. The further away the supernova occurs, the less detail can be learned from it, so the graph beyond the maximum happiness distance appears to show an {{wiktionary|asymptotic}} approach to less and less astronomer happiness. On the other hand, a {{w|near-earth supernova}} close enough to flood the Earth with significant amounts of gamma and X-ray radiation might be considered ''too'' close. Its radiation could destroy life on Earth, or at least significantly harm the biosphere, which would be a bad thing.{{cn}} Astronomers (and many others) would be really unhappy if that happened, shown as a sharp drop in happiness towards smaller distances and negative happiness values for a supernova that is very close. In fact, if a supernova were to instantly destroy Earth, or kill off all life on it, astronomers may no longer be able to be happy or unhappy (depending on your theological/spiritual feelings), so distance values close to zero have undefined astronomer happiness values.&lt;br /&gt;
&lt;br /&gt;
Many astronomers watch and study the stars in the night sky, even those that don't change appreciably over human timescales, but observing and recording such a huge event would be interesting for many reasons. Humans can observe some supernovae with the naked eye, especially if they occur within {{w|Milky Way|our own galaxy}}. A potential supernova in the news lately is {{w|Betelgeuse}}, a {{w|red giant}} star that is the left shoulder in the constellation Orion. About 430 light years from the Sun, it has been pulsating, dimming and brightening over exceedingly short time scales compared to the tens of millions of years such a big star is expected to burn. Betelgeuse should be far enough away from Earth that the inevitable explosion would be safe enough for life on Earth (although [https://www.skyatnightmagazine.com/space-science/earth-danger-betelgeuse-supernova some assessments] are not so sure), but it ''will'' outshine all other stars in the night sky, possibly competing with the Moon, and could even be visible during daytime. This would be a dream come true for many astronomers and something obvious to others interested in the night sky. In the first [[:Category:Stargazing | Stargazing]] comic, [[1644: Stargazing | 1644]], the wish that it goes supernova (in [[Randall|Randall's]] lifetime) is clearly expressed.&lt;br /&gt;
&lt;br /&gt;
Since this ''should'' be safe for us, and since it would be a spectacle not seen for hundreds of years here on Earth, this would make astronomers very happy, not just from all they could learn, but also from all the increased interest in gazing at the sky with the 'new' star (and then seeing what happens to it next).&lt;br /&gt;
There are thought to be about three supernovae occurring per century within our own galaxy (most of which are much further away than Betelgeuse), and many other galaxies within which a supernova explosion can be detected. These remain useful to see, and are often studied as intensively as possible, but have decreasing amounts of thrill to them and are harder to notice/record in the early stages of the explosion (or immediately before, to add even more understanding).&lt;br /&gt;
&lt;br /&gt;
The title text expands upon the point of &amp;quot;too close&amp;quot; supernovae, claiming that astronomers are not quite clear or perhaps unwilling to admit how close they would like a supernova to be. If it were {{what if|73|close enough}} to severely impact the quality of human life, they would presumably not be happy, but the title text suggests that they might actually be willing to accept some trouble on Earth if they get to the see a supernova comparatively close by.&lt;br /&gt;
&lt;br /&gt;
This is the second comic in a row that mentions exploding stars, after [[2877: Fever]], which like this comic is also a [[:Category:Charts|Charts comic]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A graph is shown where the axes are labeled and arrows are pointing upward above the Y axis label and to the right above the X axis label. There is a single line on the graph that peaks close to the Y axis, where it reaches close to the top of the drawn part of the Y axis. Then the line approaches the X axis asymptotically towards the far right. But closer to the Y axis, the peak line goes almost vertically down, and continues far below the &amp;quot;bottom of the chart&amp;quot;, outside of the boundary of the graph that was only supposed to be above the X axis.]&lt;br /&gt;
:Y axis: How happy astronomers are&lt;br /&gt;
:X axis: How far away the new supernova is&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Line graphs]]&lt;br /&gt;
[[Category:Astronomy]]&lt;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2876:_Range_Safety&amp;diff=332244</id>
		<title>Talk:2876: Range Safety</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2876:_Range_Safety&amp;diff=332244"/>
				<updated>2024-01-04T01:50:11Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: &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;
The 'standard' and '2x' sized images had unexpected sizes, so a Trivia section has been automatically generated, and an imagesize parameter has been added (at half size) to render the image consistently with other comics on this website. --[[User:TheusafBOT|TheusafBOT]] ([[User talk:TheusafBOT|talk]]) 14:54, 3 January 2024 (UTC)&lt;br /&gt;
:Okay, so, today we learned modern xkcd comics are drawn entirely with the pencil tool, with the brush size for the text averaging 22 pixels, and then downscaled to 1/15th of the size before final publication. [[Special:Contributions/162.158.103.91|162.158.103.91]] 15:01, 3 January 2024 (UTC)&lt;br /&gt;
::The text is a font...   &lt;br /&gt;
::[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:03, 3 January 2024 (UTC)&lt;br /&gt;
:::&amp;quot;...is a font...&amp;quot;  https://github.com/ipython/xkcd-font  [[User:PRR|PRR]] ([[User talk:PRR|talk]]) 20:23, 3 January 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Why is the tower missing in the second panel?&lt;br /&gt;
:If the other buildings weren't in the same place, and the tower weren't back in panel 3, I'd have guessed that the rocket was moved back to the VAB to wait for the next launch window. Maybe this was more activity of the Range Mischief Officer? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 17:05, 3 January 2024 (UTC)&lt;br /&gt;
::Seems to be back. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 19:54, 3 January 2024 (UTC)&lt;br /&gt;
&lt;br /&gt;
Is it worth adding a guess of what kind of rocket it is to the explanation? The phallic design seems like one of Blue Origin's. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 17:06, 3 January 2024 (UTC)&lt;br /&gt;
:The thin &amp;quot;neck&amp;quot; makes it look like somewhat like a Long March 4 when carrying a large fairing, but it's a bit exaggerated in how much thicker the lower stages are. The ratio looks more like a Vega-C, but then the neck is way too short.[[Special:Contributions/172.69.247.40|172.69.247.40]] 17:37, 3 January 2024 (UTC)&lt;br /&gt;
::Hard to tell, in silouhette. Often a two(-or-more)-side-booster configuation is used to increase the payload capabilities for a normally 'straight-up' main stack. And the reason why the stack needs boosting may be the increased weight (and/or fairing-size) of the extra-large payload section.&lt;br /&gt;
::The fins off the base of the broad 'body' are typical parts of add-on-boosters (which may have various top ends, some matching the 'shoulders' as seen) to aid with both the assisted phases of the launch (keeping the stack trimmed without excessive gimballing of the engines equipped to gimbal) ''and'' to ensure their eventual ejection is safe (adds a further force to ensure the expelled boosters consistently tumble safely away from the still-ascending, maybe boosting, central stack). There's not enough pixels to be sure if it's a typical Russian/European booster-profile (if it's an Arianne, sheer length make it closer to Arianne 5 (typical 2-booster stacking) to either Arianne 4 (A42P/44LPA/44P/etc) or 6 (A62/A64), though it's borderline even for a 5G/G+, and Proton-M has 'very low shoulders' too), and so many 'private' vehicles exist that I wouldn't want to check them all just for this. Not a Falcon 9 variant, however.&lt;br /&gt;
::The outsized header-fairing tends to happen for large loads that don't need a broad stack (JWST needed no comparatively huge head, it already needed power enough to get to L2!), something big-and-buslike that maybe a Delta-II might launch to sub-GEO (although the D2's boosters clearly do not match this profile, either).&lt;br /&gt;
::Unless I (or anybody else) happens upon a stack-shot that matches it, I think it's just an ad-hock composite. A Platonic 'form' of a rocket (or an Aristotelian one, if you prefer). But it does raise interesting questions.&lt;br /&gt;
::...as does why &amp;quot;uprange&amp;quot; is redlinked (currently!) in the wiktionary page for &amp;quot;downrange&amp;quot;. (Launching ''uprange'' into thunderstorms would be the suggestion for yet another range non-safety officer to make... :p ) [[Special:Contributions/141.101.98.104|141.101.98.104]] 01:50, 4 January 2024 (UTC)&lt;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=331906</id>
		<title>2875: 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2875:_2024&amp;diff=331906"/>
				<updated>2024-01-02T17:09:18Z</updated>
		
		<summary type="html">&lt;p&gt;141.101.98.104: Undo revision 331905 by 172.70.130.129 (talk)&lt;/p&gt;
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== Headline text ==&lt;br /&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;
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
In what 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. [[Cueball]], in response, notes that it is 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, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.&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. 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;
The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail 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. But when even that 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 a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an 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;
The title text references {{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 problems established in the philosophical conundrum, and the title text claims that other presidents used this plan to get around the Constitutional limitations concerned in case they wanted to serve more than two terms.&lt;br /&gt;
&lt;br /&gt;
However, no one has yet even ''needed'' to carry out this plan. Only one President has exceeded the 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 tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet planned ''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;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&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 now standing.]&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 still 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;
:[Ponytail checks 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 talking to 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 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 heads off with a finger raised.]&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;
{{comic discussion}}&lt;br /&gt;
&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;/div&gt;</summary>
		<author><name>141.101.98.104</name></author>	</entry>

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