Difference between revisions of "explain xkcd:Sandbox"

Explain xkcd: It's 'cause you're dumb.
Jump to: navigation, search
m
 
(431 intermediate revisions by 80 users not shown)
Line 1: Line 1:
__NOINDEX__
+
__NOTOC__{{DISPLAYTITLE:explain xkcd}}
{{DISPLAYTITLE:explain XKCD:sAnDBoX}}
+
<center>
Make changes, try things out, or just have fun with the wiki here! Just leave everything above the line alone, please.
+
<font size=5px>''Welcome to the '''explain [[xkcd]]''' wiki!''</font><br>
[http://www.explainxkcd.com/wiki/index.php?title=explain_xkcd:Sandbox&action=edit&oldid=91667 clear sandbox]
+
<span style="font size:210%;">We have an explanation for all [[List of all comics (full)|'''{{#expr:{{PAGESINCAT:All comics|R}}}}''' xkcd comics]], and only {{PAGESINCAT:Incomplete explanations|R}} ({{#expr: {{PAGESINCAT:Incomplete explanations|R}} / {{LATESTCOMIC}} * 100 round 1}}%) are incomplete. [[:Category:Incomplete explanations|Help us finish them!]]</span><!-- Note: the -1 in the calculation above has been removed (it was there to discount "comic" 404, but we've categorized it to be a comic and so has Randall.) -->
------
+
</center>
xkcd [[1957]] WIP:
+
<!-- Go to this explanation button --><span style="position: absolute; right:0; padding-top:1.4em; font-size: 100%;"><span class="no-link-underline">[[{{LATESTCOMIC}}|&nbsp;</span>'''Go to this explanation''']]</span>
{| class="wikitable"
+
 
! style="width: 30%;" | Vulnerability
+
=Latest comic=
! style="width: 70%;" | Explanation
+
<div style="border:1px solid grey; background:#f6f6f6; padding:1.5em;">
|-
+
{{:{{LATESTCOMIC}}}}
|Apple products crash when displaying certain Telugu or Bengali letter combinations.
+
----
|[Insert explanation here.]
+
 
|-
+
<span style="position: absolute; left:0; padding-top:1.35em; font-size: 105%;"><span class="no-link-underline">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[[File:new topic.png|21x21px|link={{LATESTCOMIC}}#Discussion]][[{{LATESTCOMIC}}#Discussion|&nbsp; </span>'''View comic discussion''']]</span><br><br></div>
|An attacker can use a timing attack to extploit[sic] a race condition in garbage collection to extract a limited number of bits from the Wikipedia article on Claude Shannon.
+
 
|[Insert explanation here.]
+
== New here? ==
|-
+
<div style="float:right; margin: 0 0 1em 1em">{{Special:ContributionScores/10/30/nosort,notools}}<div style="font-size:0.85em; width:28em; font-style:italic">[[Special:ContributionScores|Lots of people]] contribute to make this wiki a success. Many of the recent contributors above have [{{fullurl:Special:Contributions|contribs=newbie}} just joined]. You can do it too! Create your account [[Special:UserLogin/signup|here]].</div></div>
|At the cafe on third street, the post-it note with the wifi password is visible from the sidewalk.
+
 
|[Insert explanation here.]
+
You can read a brief introduction about this wiki at [[explain xkcd]]. Feel free to [[Special:UserLogin/signup|create an account]] and contribute to the wiki! We need explanations for xkcd [[:Category:Incomplete explanations|comics]], [[:Category:Characters|characters]], [[What If? chapters|''What If?'' articles]], and [[:Category:xkcd|everything in between]]. If it is referenced in an [[xkcd]] comic, it should be here.
|-
+
 
|A remote attacker can inject arbitrary text into public-facing pages via the comments box.
+
* If you're new to wiki editing, see the [[explain xkcd:Editor FAQ]] for a specific guidance to this wiki and the more general help on [[mw:Help:Editing pages|how to edit wiki pages]]. There's also a handy {{w|Help:Cheatsheet|wikicode cheatsheet}}.
|Describes a common feature on news sites or social media sites like Facebook. The possibility for users to "inject" text into the page is by design. This is a humorous reference to the relatively common security vulnerability "[[Wikipedia:Cross-site_scripting|persistent cross-site scripting]]", where input provided by the user is displayed to other users in a dangerous fashion that allows attackers to inject arbitrary HTML or Javascript code into e.g. a comment section. It might also be a humorous reference to the events before, during and after the 2016 US Presidential elections where Internet Research Agency employees based remotely in St. Petersburg, Russia, but disguised as US citizens, "injected" arbitrary text in the form of political propaganda into comments on multiple web sites, according to an indictment returned by a federal grand jury on February 16, 2018.
+
 
|-
+
* Discussion about the wiki itself happens at the [[explain xkcd:Community portal|Community portal]].
|MySQL server 55.45 secretly runs two parallel databases for people who say "S-Q-L" and "sequel."
+
 
|[Insert explanation here.]
+
* You can browse the comics from the [[List of all comics (full)|list of all comics]] or by navigating the category tree at [[:Category:Comics]].
|-
+
 
|A flaw in some x86 CPUs could allow a root user to de-escalate to normal account privileges.
+
* The incomplete explanations are listed [[:Category:Incomplete explanations|here]]. Feel free to help out by expanding them!
|[Insert explanation here.]
+
 
|-
+
== Rules ==
|Apple products catch fire when displaying emoji with diacritics.
+
 
|[Insert explanation here.]
+
Don't be a jerk!
|-
+
 
|An oversight in the rules allows a dog to join a basketball team.
+
There are a lot of comics that don't have set-in-stone explanations; feel free to put multiple interpretations in the wiki page for each comic.
|[Insert explanation here.]
+
 
|-
+
If you want to talk about a specific comic, use its discussion page.
|Haskell isn't side-effect-free after all; the effects are all just concentrated in this one. Computer in Missouri that no one's checked on in a while.
+
 
|[Insert explanation here.]
+
Please only submit material directly related to xkcd and, of course, only submit material that can legally be posted and freely edited. Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users who repeatedly post such content will be blocked.
|-
+
 
|Nobody really knows how hypervisors work.
+
If you need assistance from an [[explain xkcd:Administrators|admin]], post a message to the [[explain xkcd:Community portal/Admin requests|Admin requests]] board.
|[Insert explanation here.]
+
 
|-
+
[[Category:Root category]]
|CRITICAL: Under Linux 3.14.8 on System/390 in a UTC+14 time zone, a local user could potentially use a buffer overflow to change another user's default system clock from 12-hour to 24-hour.
+
 
|[Insert explanation here.]
+
Recent comments: {{Special:RecentChanges|namespace=1}}
|-
 
|x86 has way too many instructions.
 
|[Insert explanation here.]
 
|-
 
|Numpy 1.8.0 can factor primes in O(log n) time and must be quietly deprecated before anyone notices.
 
|[Insert explanation here.]
 
|-
 
|Apple products grant remote access if you send them words that break the "I before E" rule.
 
|[Insert explanation here.]
 
|-
 
|Skylake x86 chips can be pried from their sockets using certain flathead screwdrivers.
 
|[Insert explanation here.]
 
|-
 
|Apparently Linus Torvalds can be bribed pretty easily.
 
|[Insert explanation here.]
 
|-
 
|An attacker can execute malicious code on their own machine and no one can stop them.
 
|[Insert explanation here.]
 
|-
 
|Apple products execute any code printed over a photo of a dog with a saddle and a baby riding it.
 
|[Insert explanation here.]
 
|-
 
|Under rare circumstances, a flaw in some versions of Windows could allow Flash to be installed.
 
|[[Insert explanation here.]
 
|-
 
|Turns out the cloud is just other people's computers.
 
|[Insert explanation here.]
 
|-
 
|A flaw in Mitre's CVE database allows arbitrary code insertion.[~~CLICK HERE FOR CHEAP VIAGRA~~]
 
|[Insert explanation here.]
 
|-
 
|Title text: It turns out Bruce Schneier is just two mischevious kids in a trenchcoat.
 
|[Insert explanation here.]
 
|}
 

Latest revision as of 06:19, 3 January 2026

Welcome to the explain xkcd wiki!
We have an explanation for all 3210 xkcd comics, and only 61 (1.9%) are incomplete. Help us finish them!

 Go to this explanation

Latest comic[edit]

Proof Without Content
There's also a proof without content of a conjecture without content, but it's left as an exercise for the reader.
Title text: There's also a proof without content of a conjecture without content, but it's left as an exercise for the reader.

Explanation[edit]

Ambox warning blue construction.png This is incomplete:
This page was created as an exercise for the reader. Don't remove this notice too soon. If you can fix this issue, edit the page!

This comic refers to a proofs without words, which rely on images or other geometric tools to visually demonstrate a concept without further explanation. The comic gives an example of a proof without any content at all, which proves its own existence.

This proof requires the conjecture to be stated, which could be construed as content.

This can also be a parody on scientists doing empty papers sometimes as an inside joke, such as a comprehensive overview of chemical-free consumer products – the point with that paper being that "chemical-free" is often used in its lay meaning as a selling point, that is meant to vaguely imply no artificial chemicals were added and/or used prior to production (only unrefined substances from natural sources; or perhaps allows refined substances from natural sources; or perhaps allows the use of manufactured chemicals that are at least chemically identical to naturally available ones; or perhaps...), despite any physical product technically containing substances that can be called chemicals, plus that pure synthetic chemicals can even be far better ingredients (for safety and quality control purposes) than the more 'traditional and natural' source.

The title text refers to another proof without content, that a conjecture without content could exist. This would imply a conjecture-proof pair with no content whatsoever. This could only be discussed indirectly, which is why it is mentioned and left as an exercise for the reader. Alternatively, the exercise could be forming the conjecture and proof itself if the comic is interpreted as a blank sheet of paper.

Transcript[edit]

Ambox warning green construction.png This is one of 41 incomplete transcripts:
Don't remove this notice too soon. If you can fix this issue, edit the page!


[Within a panel, two boxes stacked vertically. Each one has a label above it.]
Conjecture:
[Within the box]
It's possible to construct a convincing proof without words, pictures, or content of any kind.
[The next label]
Proof:
[The box underneath this label is empty.]
[Caption under the panel]
Proofs without words are cool, but we can go further.

comment.png  Add comment      new topic.png  Create topic (use sparingly)     refresh discuss.png  Refresh 

Discussion

Make changes, try things out, or just have fun with the wiki here! Just leave everything above the line alone, please.


This is a test. PoolloverNathan[stalk the blue seas] 20:48, 16 March 2021 (UTC)

This is not. —While False (museum | talk | contributions | logs | rights | printable version | page information | what links there | related changes | Google search | current time: 16:34) 18:38, 17 November 2022 (UTC)
A foreign student asked me to help fight against his math teacher. That was unusual. He was in that class for just a couple of weeks. The teacher's phone number was sent to me. The student asked me to spam-call the teacher. 172.71.155.55 22:58, 18 September 2023 (UTC)

here i'm just messing around in html, ignore this

furhhfghure guyrburgryhuyvfr "rvhru"

interesting way of writing quotations xd

hmmm this one of putting "<p>" in a line break will come in handy for when i want it to start at the same place than the first line

Please beware that <p> on mediawiki also disables automatic paragraph breaks, so you need a closing </p> or you'll break automatic paragraph formatting for the rest of the page. Zmatt (talk) 22:06, 31 July 2024 (UTC)

edit: da hek did that "</div>" come from An user who has no account yet (talk) 14:14, 13 October 2023 (UTC)

hi uh its hard to get here. is this a reference to undocumented feature??? hmm... this is interesting.
108.162.241.216 02:05, 23 November 2023 (UTC)

Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
Tomato soup.jpg Soup
yum yum [citation needed]

Hiuiedeixgeyceiyedhcdiedcve {{trout}}

This is the leaderboard:

Last 7 days (Top 50)

<a href=" [AT THE JULY 28TH MEETING][tab] "Cancel the meeting! Our cover is blown.">

More testing: hello ​ does​this​work (yes​it​does) This isn't a good name (talk) 22:44, 28 January 2026 (UTC)
      comment.png  Add comment

      new topic.png  View comic discussion

New here?[edit]

Last 30 days (Top 10)

Lots of people contribute to make this wiki a success. Many of the recent contributors above have just joined. You can do it too! Create your account here.

You can read a brief introduction about this wiki at explain xkcd. Feel free to create an account and contribute to the wiki! We need explanations for xkcd comics, characters, What If? articles, and everything in between. If it is referenced in an xkcd comic, it should be here.

  • The incomplete explanations are listed here. Feel free to help out by expanding them!

Rules[edit]

Don't be a jerk!

There are a lot of comics that don't have set-in-stone explanations; feel free to put multiple interpretations in the wiki page for each comic.

If you want to talk about a specific comic, use its discussion page.

Please only submit material directly related to xkcd and, of course, only submit material that can legally be posted and freely edited. Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users who repeatedly post such content will be blocked.

If you need assistance from an admin, post a message to the Admin requests board.

Recent comments:

31 January 2026

     09:13 

Talk:3201: Proof Without Content‎‎ (5 changes | history) . . (+533). . [81.179.199.253‎; Hcs‎; 136.47.216.1‎; Logalex8369‎ (2×)]

     

09:13

(cur | prev) . . (+103). . Hcs (talk | contribs)

     

03:42

(cur | prev) . . (+118). . 136.47.216.1 (talk)

     

02:01

(cur | prev) . . (+150). . 81.179.199.253 (talk)

     

01:39

(cur | prev) . . (+95). . Logalex8369 (talk | contribs)

     

01:38

(cur | prev) . . (+67). . Logalex8369 (talk | contribs)

     02:13  Talk:633: Blockbuster Mining‎ (diff | hist) . . (+320). . 208.59.176.206 (talk) (comment)
     01:57  Talk:631: Anatomy Text‎ (diff | hist) . . (+359). . 208.59.176.206 (talk) (book vs. Wikipedia)

30 January 2026

N    23:26 

Talk:3201: Proof Without Content‎‎ (14 changes | history) . . (+3,363). . [TheusafBOT‎; 81.179.199.253‎; 73.222.207.213‎; 2600:4041:2e5:b900:6c41:5afb:89d1:f216‎; 2600:1700:2120:5880:c885:5daf:efd8:eadf‎; 104.28.199.245‎; R128‎ (2×); Barmar‎ (2×); 2001:16b8:b583:2500:4d66:4f4e:17e2:34f1‎ (2×); 199.36.252.124‎ (2×)]

     

23:26

(cur | prev) . . (+226). . 73.222.207.213 (talk) (Circular reasoning in proof)

     

22:12

(cur | prev) . . (+161). . 2600:1700:2120:5880:c885:5daf:efd8:eadf (talk)

     

22:11

(cur | prev) . . (+324). . 2600:4041:2e5:b900:6c41:5afb:89d1:f216 (talk)

     

21:14

(cur | prev) . . (+114). . 81.179.199.253 (talk)

     

19:33

(cur | prev) . . (+166). . Barmar (talk | contribs)

     

19:31

(cur | prev) . . (+305). . Barmar (talk | contribs)

     

17:58

(cur | prev) . . (+188). . R128 (talk | contribs)

     

17:58

(cur | prev) . . (+1,432). . 104.28.199.245 (talk) (explained the joke in terms of maths books and students frustration)

     

17:51

(cur | prev) . . (+19). . 2001:16b8:b583:2500:4d66:4f4e:17e2:34f1 (talk)

     

17:50

(cur | prev) . . (+107). . 2001:16b8:b583:2500:4d66:4f4e:17e2:34f1 (talk)

     

17:44

(cur | prev) . . (+208). . R128 (talk | contribs)

     

17:40

(cur | prev) . . (-92). . 199.36.252.124 (talk)

     

17:39

(cur | prev) . . (+92). . 199.36.252.124 (talk)

N    

17:35

(cur | prev) . . (+113). . TheusafBOT (talk | contribs) (Created by theusafBOT: talk page for 3201)

     19:50  Talk:1141: Two Years‎ (diff | hist) . . (+337). . 2001:4c4e:1c09:ec00:5982:c642:8293:4131 (talk) (Zarg is a Luxembourgish noun)

     16:25 

Talk:3200: Chemical Formula‎‎ (13 changes | history) . . (+3,905). . [1234231587678‎; 87.75.45.69‎; 82.132.236.133‎; 2001:638:807:507:10d4:7a7b:db7c:21ff‎; 195.65.24.115‎; User 8496351‎ (2×); Kynde‎ (2×); Dextrous Fred‎ (2×); 82.13.184.33‎ (2×)]

     

16:25

(cur | prev) . . (+835). . 82.132.236.133 (talk)

     

15:04

(cur | prev) . . (+59). . 82.13.184.33 (talk)

     

15:02

(cur | prev) . . (-1). . 82.13.184.33 (talk)

     

14:52

(cur | prev) . . (+625). . Kynde (talk | contribs)

     

14:49

(cur | prev) . . (+638). . Kynde (talk | contribs)

 m   

14:24

(cur | prev) . . (+101). . Dextrous Fred (talk | contribs) (Clarification)

 m   

14:24

(cur | prev) . . (+259). . Dextrous Fred (talk | contribs) (Clarification)

     

13:41

(cur | prev) . . (+464). . 2001:638:807:507:10d4:7a7b:db7c:21ff (talk)

     

13:24

(cur | prev) . . (+82). . User 8496351 (talk | contribs)

     

13:20

(cur | prev) . . (+366). . User 8496351 (talk | contribs)

     

11:21

(cur | prev) . . (+9). . 195.65.24.115 (talk)

     

10:42

(cur | prev) . . (+229). . 87.75.45.69 (talk) (are kilonovas distinct from supernovas)

 m   

04:38

(cur | prev) . . (+239). . 1234231587678 (talk | contribs)

 m   14:25  Talk:3181: Jumping Frog Radius‎ (diff | hist) . . (+292). . Sci09273.15 (talk | contribs) (equation)

29 January 2026

     18:58 

Talk:3200: Chemical Formula‎‎ (10 changes | history) . . (+2,875). . [Gorcq‎; 82.132.239.10‎; 81.179.199.253‎; 2a12:f43:141a:9f00:a0fa:9260:7baf:8d57‎; 130.76.187.47‎; Commercialegg‎ (2×); 82.13.184.33‎ (3×)]

     

18:58

(cur | prev) . . (+944). . 81.179.199.253 (talk)

     

17:03

(cur | prev) . . (+149). . 82.13.184.33 (talk)

     

15:02

(cur | prev) . . (+723). . 82.132.239.10 (talk)

 m   

14:51

(cur | prev) . . (+1). . Commercialegg (talk | contribs)

 m   

14:50

(cur | prev) . . (+148). . Commercialegg (talk | contribs) (Comment)

     

13:37

(cur | prev) . . (+259). . 130.76.187.47 (talk)

     

13:16

(cur | prev) . . (+418). . 2a12:f43:141a:9f00:a0fa:9260:7baf:8d57 (talk) (B and Be)

 m   

12:15

(cur | prev) . . (+148). . Gorcq (talk | contribs)

     

09:38

(cur | prev) . . (0). . 82.13.184.33 (talk)

     

09:37

(cur | prev) . . (+85). . 82.13.184.33 (talk)

     15:42  Talk:2074: Airplanes and Spaceships‎ (diff | hist) . . (+358). . 82.71.120.214 (talk) (Mention of Patrick Moore, who has a connection to the topic of the comment.)
     15:36  Talk:3193: Sailing Rigs‎ (diff | hist) . . (+177). . Whoop whoop pull up (talk | contribs)
 m   14:30  Talk:3184: Funny Numbers‎ (diff | hist) . . (+125). . Commercialegg (talk | contribs) (Comment)
     10:53  Talk:490: Morning Routine‎ (diff | hist) . . (+120). . 176.199.209.149 (talk)