explain xkcd - User contributions [en]

Talk:2525: Air Travel Packing List

2021-10-23T13:38:37Z

162.158.88.113:

I'll work on this one, so I don't get edit conflicted. {{User:PoolloverNathan/Signature}} 23:16, 6 October 2021 (UTC)

A lot of these items that are listed as needed during a crash are not that related to crashing but some things that paranoid potential passengers feel they should have anyway. [[User:Nutster|Nutster]] ([[User talk:Nutster|talk]]) 02:04, 7 October 2021 (UTC)

I had a teacher that was a retired engineer. He complained about working on an airplane and he wanted to design a lightweight floor, but the heel of high heeled shoes would pierce through so he had to make it heaver than he wanted. One can imagine an alternate world where the lighter floors were chosen, where airplane shoes would be some kind of pressure distributing shoe.[[Special:Contributions/172.69.42.125|172.69.42.125]] 02:32, 7 October 2021 (UTC)
:I thought airplane shoes was a play on boat shoes, which are a thing. https://en.wikipedia.org/wiki/Boat_shoe [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 14:34, 7 October 2021 (UTC)

I think that the Flag for international flights is referring to a national flag not to a flag used for signaling messages. [[Special:Contributions/162.158.187.208|162.158.187.208]] 03:20, 7 October 2021 (UTC)

Pedantry corner: parachutes don't keep you from falling out of the sky - they help you land safer when you do. [[Special:Contributions/162.158.159.95|162.158.159.95]] 08:21, 7 October 2021 (UTC)
:Like the old joke about falling out of a building: It's not the fall that kills you, it's the sudden stop at the end. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 14:32, 7 October 2021 (UTC)

The mouthpiece may be a COVID-19 slur, referring to the requirement to cover your mouth -- [[Special:Contributions/162.158.90.83|162.158.90.83]] 09:02, 7 October 2021 (UTC)
:No I think it is just so you do not use the mouthpiece from the previous passenger because of the risk of covid-19. The idea that you before the pandemic would use the same mouth piece as multiple passengers before you is as gross as putting [[Toothpaste]] from your moth back in the tube again... :p --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 06:58, 8 October 2021 (UTC)

Part of the joke may be that this list isn't for those who have travelled via plane but flown from cockpit.
"so you can attract birds, and use THEM to fly the plane in case of crash" - What does that even mean? [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 11:01, 7 October 2021 (UTC)

Some of those items could be from the computer game "Zak McKracken and the Alien Mindbenders" https://en.wikipedia.org/wiki/Zak_McKracken_and_the_Alien_Mindbenders
Seat Cushion, Birdseed, Parachute.

My first interpretation of the mouthpiece and trumpet was an early style telephone that had a separate mouthpiece and trumpet style earpiece.

Ballast is routinely used on aircraft. The baggage handlers that load the plane will usually add temporary ballast as needed. The manufacturer and aircraft mechanics may install permanent ballast blocks in order to ensure that the center of gravity is within limits.

I will edit the main text shortly. It will be my very first non-comment edit on this site.
https://www.flightliteracy.com/ballast/[[User:Hamjudo|Hamjudo]] ([[User talk:Hamjudo|talk]]) 17:01, 7 October 2021 (UTC)
:Great to have you onboard. Did you expect to avoid editing conflict by writing here first? Or just information. Keep the input coming, if you write something that people disagree with it will be edited later. So no problem making mistakes. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 06:59, 8 October 2021 (UTC)

"Spare batteries in case the plane runs out" surely refers to the regulations against spare lithium batteries, not just to the absurdity of using such batteries to power the aircraft. [[User:Modernhemalurgist|Modernhemalurgist]] ([[User talk:Modernhemalurgist|talk]]) 22:50, 7 October 2021 (UTC)

Seat backs on airliners have reclined, probably since the introduction of the [https://en.wikipedia.org/wiki/Douglas_DC-3 DC-3]. Once upon a time, there was enough space between seats to allow the recline function to be used without strangling the person behind. This is no longer the case, especially in steerage ... er, sorry, economy class. The true violators of etiquette are the airlines and their seating practices. The airlines will, of course, reject the charge, and say that the etiquette violators are passengers who demand space but refuse to pay for it. The whole demonstrates human ability to accept the unacceptable, and to distract ourselves from prime causes, and responsibilities, by means of petty and meaningless disputes. [[Special:Contributions/172.68.129.133|172.68.129.133]] 03:22, 8 October 2021 (UTC)
:Yes, it's a shame this has become controversial. It should be obvious that, regardless of whether you recline your seat or not, you should try and be considerate to the person behind you. There's so little space in cattle class nowadays that it can be an uncomfortable experience, especially if you're tall (like I am). I remember one particularly awful flight where I didn't get to eat because the person in front of me wouldn't put their seat back to upright even for the meal :-(. All this aside, I'm just glad I get to fly (or will do, once restrictions ease) and travel internationally on a budget. [[User:Zoid42|Zoid42]] ([[User talk:Zoid42|talk]]) 07:02, 9 October 2021 (UTC)

[[757|Air horn!]] --[[Special:Contributions/162.158.90.11|162.158.90.11]] 08:14, 8 October 2021 (UTC)

Anyone else thinks Wing Glue may be a running joke about the wings of Icarus? Radnall already referenced them a few times both on xkcd and what-if.--[[Special:Contributions/141.101.77.168|141.101.77.168]] 14:57, 8 October 2021 (UTC)

This is the only comic I've seen where I feel this site may have missed the main joke of the comic. This doesn't work for all the items listed, but: many of them make perfect sense under the premise "if you haven't flown in a while", just that "you" and "flown" mean things other than a person as a passenger on a commercial airline. For example:
* Seat cushion: if you're a person as a passenger on a commercial airline (the "base" or "normal" case).
* Parachute: if you're a pilot in various military or experimental aircraft.
* Wing glue: if you're Icarus.
* Sextant: if you're piloting an airship, perhaps in a fantasy setting, or even perhaps a plane in the early history of aviation.
* Birdseed: if you're a bird.
* Homing beacon: if you're a larger commercial aircraft (or a human responsible for outfitting it with safety systems).
* Keys to the plane: if you own a normal, small plane.
These ones I can think of a possible explanation but it's a bit unclear:
* Nose plugs and goggles for pressure: if you're flying an aircraft in the atmosphere of another planet where the air pressure is much higher?
* Navigation crystal: if you're flying an aircraft in a fantasy world?
* Spare batteries in case the plane runs out: if you're flying some experimental electric aircraft?
* Meteorite antidote: if you're flying a spacecraft in some sci-fi setting where meteorites were poisonous?
The others I don't have an idea for, which is why I came here looking for the explanation. --[[Special:Contributions/172.70.98.37|172.70.98.37]] 00:53, 9 October 2021 (UTC)

: I think you could be on to something. However, the sextant was really used in airliners literally 40 years ago. The 70s and early 80s can hardly be called early history of aviation. --[[Special:Contributions/162.158.89.64|162.158.89.64]] 06:05, 12 October 2021 (UTC)

[[Special:Contributions/141.101.69.120|141.101.69.120]] 21:49, 11 October 2021 (UTC) probably "decoy tickets" are somehow related to a load of false targets any combat aeroplane tends to carry. When attacked by a homing missile, the pilot can drop decoys to lure the missile away from the aeroplane.

Goggles were(are?) regularly used on open-cockpit planes, nose plugs seems to be a kind of spark plug, sometimes used on the engine of such vehicles (I first thought it may have to do with the plane's nose, but it doesn't look so). Surprisingly I found some pictures of bird nests in aircraft engines on the way, but I doubt this has to do with the seeds. In general a lot can be explained by interpreting "you haven't flown in a while" as referred to a pilot and the "in a while" to several decades.--[[Special:Contributions/162.158.94.219|162.158.94.219]] 18:54, 13 October 2021 (UTC)

the wing glue could be a reference to that one story from Greek mythology where Icarus flys close to the sun and the wing glue melts--[[Special:Contributions/162.158.74.146|162.158.74.146]] 00:32, 15 October 2021 (UTC)

I am a bit disappointed that this is only a list of things to bring, neglecting the equally important list of things to *not* bring, and not using the potential of alternations between them (as one could create, for example, for electronics and their batteries). [[Special:Contributions/162.158.88.113|162.158.88.113]] 13:38, 23 October 2021 (UTC)

Talk:2531: Dark Arts

2021-10-21T10:45:18Z

162.158.88.113: [citation needed]

Whoo, my first "first explanation". It's not a particularly thorny comic but my explanation could still use some judicious editing I'm sure. [[User:Esogalt|Esogalt]] ([[User talk:Esogalt|talk]]) 06:51, 21 October 2021 (UTC)

I added a "citation needed" to the claim that letting arbitrary websites modify your filesystem is a Bad Idea, because I couldn't resist >.<
[[Special:Contributions/172.68.132.74|172.68.132.74]] 08:40, 21 October 2021 (UTC)
:{{citation needed}} [[Special:Contributions/162.158.88.113|162.158.88.113]] 10:45, 21 October 2021 (UTC)

The previous comment is almost worth an XKCD comic of its own. --[[Special:Contributions/162.158.203.24|162.158.203.24]] 10:10, 21 October 2021 (UTC)

WTH did Randal do that lead him to put ext4 and javascript in the same search, and why does he think hardlinks are the problem with such a cursed search? [[Special:Contributions/172.69.69.182|172.69.69.182]] 10:17, 21 October 2021 (UTC)

2530: Clinical Trials

2021-10-18T22:45:17Z

162.158.88.113: /* Explanation */ More tweak.

{{comic
| number = 2530
| date = October 18, 2021
| title = Clinical Trials
| image = clinical_trials.png
| titletext = We don't need to do a clinical trial of this change because the standard of care is to adopt new ideas without doing clinical trials.
}}

==Explanation==
{{incomplete|Created by MEDICAL PROCEDURE STEP DERF - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

The purpose of clinical trials in medicine is to make sure that a new medicine works and doesn't have serious side-effects. One example of the dangers of failing to make sure that it doesn't have serious side effects is {{w|thalidomide}}, which caused a lot of birth defects.

At the time that this comic was published, the world was in the middle of the {{w|COVID-19 pandemic}} for which a number of treatments had been suggested. Given the medical, social and economic impact of this pandemic, many felt the need for an urgent answer. Many of these were based on new ideas (step 1) and led to some degree of public approval (step 2), leading to the demand to immediately deploy these treatments in medical practice (step 4). The missing Step 3 - proving the net benefits of taking that particular medicine - has led to great concern about knee-jerk demands for ineffective treatments, alongside the rejection of treatments and precautions with actual supportive evidence behind them but often decried as "fake news".

For example, many opinion leaders recommended the use of the toxic chemical chloroquine and hydroxychloroquine despite no evidence of their effectiveness. Internationally, treatments such as cow urine and anti-worming treatments have been promoted without the evidence that the likes of dexamethasone, remdesivir, toclizumab and casirivumab/indevimab have for effectiveness.

The title text refer to "usual care" which indicates the current expected treatment. For example, a patient might receive oxygen, anaesthetic drugs and the exacting care of healthcare professionals. In many COVID-19 trials, a particular treatment was evaluated with one group having this, one group having this plus a particular drug. The comedy indicates that the healthcare professionals for that particular care don't give two toots about {w:Evidence-based medicine} and will give their patient whatever a former gameshow host/racist tweeter/president is being bribed with this week.

//Yeah, you lot's gonna have to do all the citations for this one//

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[A list in a box.]

:1. Come up with new idea

:2. Convince people it's good

:[Scrawled in red handwriting, as an afterthought, an arrow indicating it is between item 2 and the original item 3] 3. Check whether it works

:3. [Now scribbled over and amended to "4."] New idea is adopted

:[Caption below the box] The invention of clinical trials.
{{comic discussion}}

2528: Flag Map Sabotage

2021-10-14T06:51:37Z

162.158.88.113: Fixed some grammar. Didn't really know how to go about with the first sentence, since it's pretty weird.

{{comic
| number = 2528
| date = October 13, 2021
| title = Flag Map Sabotage
| image = flag_map_sabotage.png
| titletext = Delaware hopes to explore the western edge of areas marked with the Belgian flag, once the tornadoes die down.
}}

==Explanation==
{{incomplete|Created by a GOD-EMPEROR OF GREATER DELAWARE - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

The comic refers to a style of map uses a map legend to demonstrate the country's borders. This flag contains a fake map legend that causes the colors of country flags to be reinterpreted according to the legend. For example the south of Russia would become part of Greater Delaware as the bottom of the Russian flag is red, which the legend marks as Greater Delaware. A number of common flag colors are included.

The title text refers to the flag of Belgium, which consists of three vertical stripes in the order black, yellow, and red. The western part of Belgium would, according to the legend, be unexplored, while the eastern part would be Greater Delaware. The middle would therefore be a tornado zone separating the unexplored area from Greater Delaware. Depending on how the flags are aligned it would be possible to explore from the south. The north is not viable as rebel forces would be present.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[A flag displays a white country-shaped area surrounded by a red field. Inside the shape sits a map legend.]

:Map Legend
:[Bright blue rectangle] Disputed territory
:[Green rectangle] Newly independent
:[Blue rectangle] Demilitarized zone
:[Yellow rectangle] Tornado warning
:[Dark blue rectangle] Held by rebel forces
:[Red rectangle] Greater Delaware
:[Black rectangle] Unexplored

:[Caption below panel]
:Our new country's flag sabotages those maps where geographic areas are colored in with flag patterns.

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Maps]]
[[Category:Sabotage]]