explain xkcd - User contributions [en]

2174: First News Memory

2024-01-10T05:21:48Z

172.71.158.90: /* Explanation */

{{comic
| number = 2174
| date = July 10, 2019
| title = First News Memory
| image = first_news_memory.png
| titletext = Psychology researchers say our 'flashbulb' memories of big events can be unreliable, but I clearly remember watching live on CNN as Challenger crashed into and destroyed the Berlin Wall.
}}

==Explanation==

Seven xkcd characters are discussing their "first news memory", their first memory of an event that was reported by the news media. Typically, very young children are unaware of even major news events. At some period in childhood, a news event will be significant and widely covered enough that the child will notice and remember it. Which specific event this is impacted by the person's age, where they live, and how prominently the news is featured in their homes and surroundings.

In the first panel, [[Cueball]] and [[Megan]] report that they remember the {{w|1988 United States presidential election|1988 US presidential election}} and the {{w|Berlin_Wall#Fall_of_the_Berlin_Wall|the removal of the Berlin wall}} in 1989 respectively. These are normal 'firsts' for Americans born in the early 1980s, as both of these events dominated media coverage at the time when people of that age would first be old enough to notice and remember it.

[[Hairy]] then recalls watching the {{w|Space Shuttle Challenger disaster|''Challenger'' explosion}} in school. A number of schools in the United States showed the footage of the Space Shuttle ''Challenger'' being launched, only to be shocked when the rocket exploded shortly after take-off. This would indeed have been a formative memory for the many students who saw it live, but Hairy subverts this expectation by clarifying that he saw it in 1995, nearly a decade after the explosion. He mentions that his teacher was fired soon after, presumably for deliberately exposing young students to a traumatic event without a good reason.

[[White Hat]] says that his first news memory was about the 2016 election (presumably the {{w|2016 United States presidential election|2016 US presidential election}}), which is only three years prior to the publication date of this comic. As he is his his 30's the fact that he can't remember any earlier news events surprises his friends, as he apparently was entirely unaware news events for most of his life.

The final memory comes from [[Black Hat]], who says he remembers "when we landed on the moon". This implies that he's talking about the first {{w|moon landing}}, which occurred on July 20, 1969, and that "we" refers to the United States (which launched the mission in question). For people who where children in the 1960's, having the first moon landing as a memory is quite common.

Black Hat subverts this interpretation by saying 'my second memory is my mom telling us we were moving to Earth instead, to blend in with the humans.' This completely re-interprets his first sentence, as it suggests that the "we" refers to himself and his family actually landing on the moon. It also implies that he's an alien who landed on the moon as a stopping point before relocating to earth. [[Hairbun]] remarks that this revelation "explains a lot", implying that Black Hat's fundamental disregard for normal standards of human behavior make more sense if he is, in fact, not human. Of course, it's equally valid to conclude that Black Hat is simply lying to mess with the people around him, which would be fully in character for him. This could also mean that Black Hat and White Hat are brothers, and thus, since it is unclear when they landed, it's possible the election was the first news episode White Hat ever watched.

===Title Text===
The title text gives [http://theconversation.com/flashbulb-memories-of-dramatic-events-arent-as-accurate-as-believed-64838 the claim] that {{w|Flashbulb memory|flashbulb memories}} of big events can be unreliable. Randall (or another character in the comic, possibly Hairbun) denies this claim, claiming to remember watching on CNN as the ''Challenger'' spacecraft crashed into the Berlin Wall. This is an inaccurate memory of these two events, as the ''Challenger'' explosion occurred in 1986 over the Atlantic Ocean, just east of Cape Canaveral, Florida, and did not occur near the Berlin Wall (in Berlin, Germany). Also, the Berlin Wall was intentionally demolished starting in 1989; it was not damaged by a space shuttle.{{Citation needed}} It is possible that this memory also conflates those events with those of the {{w|September 11 attacks}} since the latter ''did'' involve three winged craft crashing into and destroying landmark structures.

==Transcript==
:[Ponytail, Cueball, Megan, Hairy, White Hat, Black Hat and Hairbun are all at a party, discussing their earliest news memories.]

:[Panel with Ponytail, Cueball, Megan, and Hairy]
:Ponytail: What's your first news memory?
:Cueball: I always like this question! Mine was the 1988 election.
:Megan: Berlin wall for me. You?

:[Frame-less panel with Megan, Hairy, White Hat, and Black Hat]
:Hairy: Watching the ''Challenger'' launch in class. We were so excited; everyone was horrified when it blew up.
:Hairy: It was 1995.
:Hairy: Our teacher got fired soon after.

:[Panel with Hairy, White Hat, Black Hat, and Hairbun]
:White Hat: Mine's the 2016 election.
:Hairbun: ...aren't you in your 30's?
:White Hat: Look, we're not all great about keeping up with the news, OK?

:[Panel with White Hat, Black Hat, and Hairbun]
:Black Hat: My first memory is when we landed on the moon.
:Black Hat: My second memory is my mom telling us we were moving to Earth instead, to blend in with the humans.
:Hairbun: This explains a lot.

{{comic discussion}}
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Hairy]]
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Black Hat]]
[[Category:Comics featuring Hairbun]]

2767: Recipe Relativity

2023-04-26T15:57:14Z

172.71.158.90: /* Explanation */ wikilink

{{comic
| number = 2767
| date = April 24, 2023
| title = Recipe Relativity
| image = recipe_relativity_2x.png
| imagesize = 303x332px
| noexpand = true
| titletext = It says to cut the onions into 1/4" slices, but I'd better correct for length contraction.
}}

==Explanation==
{{incomplete|Created by an EDITOR MOVING AT 94% OF THE SPEED OF LIGHT. Do NOT delete this tag too soon.}}

In this comic, [[Randall]] is cooking a recipe found online. It took him much longer than the recipe said it would, and he concludes that this was due to {{w|time dilation}} as described in the theory of {{w|special relativity}}; that is, the recipe author was moving at 94% of the speed of light, causing relativistic effects, so that only 35 minutes passed for the author while 105 minutes passed for Randall. To calculate the 94% figure, he takes the recipe’s official duration (t’) and his actual duration (t), and then calculates what speed of light fraction would account for the cooking time difference.

This is absurd{{citation needed}} and therefore humorous because the traveling recipe author would report the time in his or her own {{w|frame of reference}}, not Randall's, no matter how fast they were traveling.

Randall is poking fun at online recipes that state an optimistic cooking time. The recipe author may assume an ideally equipped kitchen, a skilled chef, and the availability of prepared ingredients, such as canned or frozen cooked black beans instead of dried beans which take over an hour to soak and cook.[https://i.ibb.co/sWJR8Vq/Screenshot-2023-04-25-6-28-35-AM.png]

The title text takes the relativistic theory even further, saying that because of {{w|Length contraction|Lorentz contraction}} caused by the recipe author moving close to the speed of light, Randall should use different sizes of ingredients. If the recipe author calling for 1/4" onion slices is indeed traveling at 94% of the speed of light relative to Randall, he wonders whether his onions should be cut to 3/4" slices to match their size in his frame of reference. This is similarly absurd and therefore humorous.

==Transcript==
:[In a small square panel the top part is written in black. It looks like a search from the internet and most of the top part of the browser is too small to be read. There are three small squares and a long rectangular address bar. To the right of the first small square which has a triangle inside it pointing down, there are two lines with unreadable text. Then followed by the second square, which is empty, and the address bar with a long line of unreadable text. Finally there are two lines of unreadable text before the last square which has a plus-shaped symbol inside it. Beneath this is a large header which can easily be read:]
:<big>Black bean burrito bowl</big>

:[Beneath this header there is a line with unreadable text, and below that line a thin empty rectangle. Beneath this is the second line of readable text. The last part indicating a time is circled in red. The readable black words are written in normal letters, as opposed to the standard of xkcd with all small caps.]
:Total time: 35 minutes

:[Beneath this there are three more lines of text, but this has all been written in red. Also it uses the standard xkcd all caps text format. The first line is normal text. And the last indication of time is also circled in red as the one above it, and a small double arrow goes between those two red lines around the time.]
:My actual time: 1h 45m
:[Below this there are two lines with equations written in math version, but here given here in text. The second equation is split over two lines. The last result is also circled in red.]
:t=t'/√(1-v2/c2)
:v=c*√(1-(t'/t)2) = c*√(1-(35/105)2) = 0.94c

:[Caption below the panel:]
:I think this recipe author is moving past me at 94% of the speed of light.

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Comics with lowercase text]]
[[Category:Physics]]
[[Category:Food]]

1957: 2018 CVE List

2023-04-17T07:08:57Z

172.71.158.90:

{{comic
| number = 1957
| date = February 19, 2018
| title = 2018 CVE List
| image = 2018_cve_list.png
| titletext = CVE-2018-?????: It turns out Bruce Schneier is just two mischevious kids in a trenchcoat.
}}

==Explanation==
{{w|Common Vulnerabilities and Exposures|CVE}} (Common Vulnerabilities and Exposures) is a standardized format for assigning an identity to a cybersecurity vulnerability (similar to the way that astronomical bodies are assigned unique identifiers by committees). Giving vulnerabilities a unique identifier makes them easier to talk about and helps in keeping track of the progress made toward resolving them. The typical format of a CVE identifier is '''CVE-[YEAR]-[NUMBER]'''. For example, the CVE identifier for 2017's widespread {{w|Meltdown (security vulnerability)|Meltdown vulnerability}} is [https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5754 CVE-2017-5754]. CVEs also contain a short description of the issue.

In this comic (released in February 2018), Randall presents a number of spurious predicted CVEs for later in 2018. Each CVE identifier is given as "CVE-2018-?????", reflecting the fact that they have not yet happened so we don't know exactly what their CVE identifier will be.

Following are short descriptions of all the ''vulnerabilities'' mentioned in the comic.

;Apple products crash when displaying certain {{w|Telugu language|Telugu}} or {{w|Bengali language|Bengali}} letter combinations.
:This refers to a [https://techcrunch.com/2018/02/15/iphone-text-bomb-ios-mac-crash-apple/ real vulnerability] in iOS and MacOS publicized a few days before the comic was released, as well as [https://thenextweb.com/apps/2017/01/18/iphone-ipad-apple-text-ios-bug/ past] [http://www.telegraph.co.uk/technology/2018/01/18/apple-text-bomb-can-crash-iphones-single-message/ similar] iOS vulnerabilities.
;An attacker can use a timing attack to extploit [''sic''] a race condition in {{w|Garbage collection (computer science)|garbage collection}} to extract a limited number of bits from the Wikipedia article on Claude Shannon.
:The reference to using a Timing Attack to exploit a race condition in garbage collection refers to Meltdown and Spectre CPU flaws that can be exploited in a cloud server like the ones in Wikipedia. {{w|Claude Shannon}} was an early and highly influential information scientist whose work underlies compression, encryption, security, and the theory behind how information is encoded into binary digits.
:
:This is not a security problem, since Wikipedia articles are public. However, since Shannon formulated how the amount of unique or actual information some entity contains is proportional to the number of bits required to encode it, retrieving only a few bits casts a dark perspective upon the significance of the Shannon article's content.
;At the cafe on Third Street, the Post-it note with the WiFi password is visible from the sidewalk.
:Cafés often offer free access to WiFi as a service to patrons, as a business strategy to encourage said patrons to remain in the building and buy more coffee. Some use a password, so that only patrons can use the WiFi, and may display the password on signage inside. Since anybody could go into the cafe to read the post-it, and then use the network from nearby, the ability to read it from outside is, at most, a trivial problem. For systems that are supposed to be secure, writing passwords in a visible place is a major security flaw. For instance, following the [[wikipedia:2018 Hawaii false missile alert|2018 Hawaii false missile alert]], the agency concerned received criticism for a press photo showing [https://www.businessinsider.com/hawaii-emergency-agency-password-discovered-in-photo-sparks-security-criticism-2018-1?r=US&IR=T a password written on a sticky note] attached to a monitor.
;A remote attacker can inject arbitrary text into public-facing pages via the comments box.
: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 a user, such as through a comment section, can result in dangerous content containing arbitrary HTML or JavaScript code being displayed to other users.
;MySQL server 5.5.45 secretly runs two parallel databases for people who say "S-Q-L" and "sequel."
:Some people pronounce "{{w|SQL}}" like "sequel", after SQL's predecessor "SEQUEL (Structured English Query Language)". The standard for SQL suggests that it should be pronounced as separate letters; however, the author of SQL pronounces it "sequel", so the debate persists (with even <s>more</s> <s>less</s> <s>more</s> <s>less</s> <s>MORE</s> justification than arguments about how to pronounce "GIF"{{citation needed}}). MySQL is an open-source relational database management system. The latest generally available version (at the time of writing) is MySQL 5.7.
;A flaw in some x86 CPUs could allow a root user to de-escalate to normal account privileges.
:{{w|Privilege escalation}} refers to any illegitimate means by which a system user gains greater access privileges than they are supposed to have. The most highly-sought privilege is that of the root user, which allows complete access to an entire system— a ''superuser''. Any flaw that would allow an ordinary user to escalate to superuser status is a critical security threat, as they then have full control of the machine. This is what most hackers seek to achieve when attacking a device.
:
:This CVE presents the less-threatening reverse situation: allowing a root user to ''de-escalate'' to normal account privileges. In fact, root users can already do this at any time; superuser privileges allow them to take control of any user account, so they can simply switch to an account which has fewer privileges than the root user.
;Apple products catch fire when displaying emoji with diacritics.
:This is a reference to a common problem of modern gadgets catching fire (usually related to flaws in lithium-ion batteries), as well as to Apple products crashing when attempting to display certain character sequences. Diacritics are the accents found on letters in some languages (eg. č, ģ ķ, ļ, ņ, š, ž). These would not normally be found on emojis{{citation needed}}. 🔥̃ is an example of such an emoji.
;An oversight in the rules allows a dog to join a basketball team.
:This probably refers to the movie ''{{w|Air Bud}}'', about a dog playing basketball. This has been a common theme in xkcd comics: see [[115: Meerkat]], [[1439: Rack Unit]], [[1819: Sweet 16]], [[1552: Rulebook]].
:In 2017, it was discovered that an oversight in the constitution of the state of Kansas may [http://www.kansascity.com/news/politics-government/article175956836.html permit a dog to be governor]. Shortly before this comic published, the Secretary of State's office ruled that [http://dfw.cbslocal.com/2018/02/13/dog-kansas-governor/ it could not].
;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.
:{{w|Haskell (programming language)|Haskell}} is a functional programming language. Functional programming is characterized by using functions that don't have side effects because they can not change things accessible in other parts of the program, as in [[1312: Haskell]]. The joke here is discovering that it does indeed have side-effects, manifested via external alteration, not violating the internal alteration paradigm. It may also be a reference to "{{w|The Ones Who Walk Away From Omelas}}," a short story by Ursula Le Guin in which a utopian city concentrates all its misery into one child who is locked away in a basement.
;Nobody really knows how hypervisors work.
:[[wikipedia:Hypervisor|"Hypervisors"]] are a tool for computer virtualization. Virtualization is implemented via various combinations of hardware and/or software, which requires a computer to completely simulate another computer, with its own unique hardware and software, and to varying degrees as to whether or not the virtualization is aware of or can determine whether it is being virtualized. Many IT professionals and businesses rely heavily on various forms of virtualization, but most of the individual employees would be hard-pressed to explain how it works. Programs running on other virtual computers, or on the real computer, may be able to access information on a virtual computer in ways which would not be possible with a single real computer. Consequently, understanding how the hypervisor works is important to assessing the security of a virtual server. Meltdown and Spectre are related to this.
;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.
:This joke is about arcane systems that are running Linux in exceedingly rare situations, meaning that reproducing errors would be incredibly difficult or inconvenient, and would only affect a very tiny user base (if any at all). {{w|IBM System/390 ES/9000 Enterprise Systems Architecture ESA family|System/390}} is an IBM mainframe introduced almost 30 years before this comic, which has a version of Linux. UTC+14 is a time zone used only on some islands in the Pacific Ocean (Primarily [[Wikipedia:Line_Islands|the Line Islands]]) and is also the earliest time zone on Earth. Even if all of these absurd conditions were met, the resulting vulnerability would still be relatively benign: simply changing a user's preferred clock display format. Other xkcd comics make references to such obscure computer-time issues relating to time zones and time conversions, and how many programmers find these issues frustrating or even traumatizing.
;x86 has way too many instructions.
:The x86 architecture (used in many Intel and AMD processors) is very complicated. Processors typically implement such a complex architecture using programs (microcode) run on a set of hidden, proprietary processors. The details of these hidden machines and errors in the microcode can result in security vulnerabilities, such as Meltdown, where the physical machine does not match the conceptual machine.
:
:A more complicated instruction set is more complex to implement.{{Citation needed}} The x86 architecture is considered "CISC" (a "{{w|Complex instruction set computer}}"), having many instructions originally provided to make programming by a human simpler; other examples include the 68000 series used in the first {{w|Apple Macintosh}}. In the 1980s, this design philosophy was countered by the "RISC" ("{{w|Reduced instruction set computer}}") design movement - based on the observation that computer programs were increasingly generated by compilers (which only used a few instructions) rather than directly by people, and that the chip area dedicated to extra instructions could be better dedicated to, for example, cache. Examples of RISC style designs include {{w|SPARC}}, {{w|MIPS}}, {{w|PowerPC}} (used by Apple in later Macintoshes) and the {{w|ARM architecture|ARM}} chips common in mobile phones. Historically, there was considerable discussion about the merits of each approach. At one time the Mac and Windows PC were on different sides; owners of other competing systems such as the Archimedes and Amiga had similar arguments on usenet in the early 1990s. This "issue" may be posted by someone who still recalls these debates. Technically, the extra instructions do slightly complicate the task of validating correct chip behavior and complicate the tool chains that manage software, which could be seen as a minor security risk. However, the 64-bit architecture introduced by {{w|AMD}}, and since adopted by {{w|Intel}}, does rationalize things somewhat, and all recent x86 chips break down instructions into RISC-like micro-operations, so the complication from a hardware perspective is localized. Recent security issues, such as the speculative cache load issue in Meltdown and Spectre, depend more on details of implementation, rather than instruction set, and have been exhibited both by x86 (CISC) and ARM (RISC) processors.
;NumPy 1.8.0 can factor primes in ''O''(log ''n'') time and must be quietly deprecated before anyone notices.
:Fantastically, this would be an unimaginable software threat, not to be confused with the even speedier, but future-bound, threat in hardware via {{w|Quantum computing}}.
:NumPy is the fundamental package for scientific computing with the programming language Python. ''O''(log ''n'') is [[wikipedia:Big_O_notation#Infinite_asymptotics|Big O notation]] meaning that the time it takes for a computer algorithm to run is in the order of log ''n'', for an input of size ''n''. ''O''(log ''n'') is very fast and is more usual for a search algorithm. Prime factorization currently is ''O''(''2''''n''n)). If something can find the prime factors of a number this quickly, especially a [[wikipedia:semiprime|semiprime]] with two large factors, it will enable attacks to break many crypto functions used in internet security. However, prime numbers have only a single factor, and "factoring primes" quickly is a simpler problem, that of [[wikipedia:Primality test|proving that a number is in fact a prime]].
;Apple products grant remote access if you send them words that break the "I before E" rule.
:Another joke on the first CVE and [[wikipedia:I before E except after C|a common English writing rule of thumb]], which fails almost as often as it succeeds. Possibly a jab at Apple's image, portraying their software as unable to handle improper grammar or spelling.
;Skylake x86 chips can be pried from their sockets using certain flathead screwdrivers.
:Skylake x86 chips are a line of microprocessors made by Intel. Some processors are soldered directly to a system board or daughter board, while others are attached to boards that plug into the system board by means of a socket (pins or connectors that make physical contact with receptacles or connectors on a system board). Some sockets, especially older ones, require force to insert or remove, and often require the use of a flat blade screwdriver or a specialized tool, but most modern ones use ZIF (Zero Insertion Force) techniques, often involving a lever or similar to tighten or loosen the friction/tightness of the contacts. No screwdriver is needed in this case. However, any processor ''can'' be forcefully removed from its socket with a screwdriver.{{Citation needed}}
;Apparently Linus Torvalds can be bribed pretty easily.
:{{w|Linus Torvalds}} is the {{w|benevolent dictator for life}} of the Linux kernel codebase. Normally it is hard to make changes because he has the last word, and because the kernel is replicated in all Linux installations. Linus made the news in January 2018 when, having looked at one of Intel's proposed fixes for the Spectre and Meltdown vulnerabilities, he declared "[https://techcrunch.com/2018/01/22/linus-torvalds-declares-intel-fix-for-meltdown-spectre-complete-and-utter-garbage/ the patches are COMPLETE AND UTTER GARBAGE]". Presumably, it may be found that he may be successfully bribed to be less blunt and/or less critical of vulnerability fixes that are complete and/or utter garbage. If this were the case, this would be a severe critical vulnerability to all Linux servers and machines.
;An attacker can execute malicious code on their own machine and no one can stop them.
:The point of an attack is to make someone else's machine perform actions against the owner's will. Anyone can make their own machine execute any code if they have root access and the necessary tools, but this would usually not be described as an attack, except in the case of a locked-down appliance, such as a video game console, a John Deere tractor, or pay TV decoder.
;Apple products execute any code printed over a photo of a dog with a saddle and a baby riding it.
:This could refer to a CVE vulnerability of JPG files where JavaScript embedded within the image file is executed by some application. In this case, though, the code is visible on the image instead of invisibly encoded within the image file. The code is also only executed if the image contains a photo of a baby in a saddle riding a dog. It's unclear whether the photo would be a digital photo, a printed photo (i.e. as taken using a digital camera), or maybe both.
:Other than by some {{w|metadata}}, either internal to the image file, or embedded along with it, as in a web page, or a PDF or other container file, this "bug" would require the device to {{w|Hard AI|figure out}} specifically what the photo contains image-wise (something that's REALLY HARD for computers to do reliably), but would also require OCR (optical character recognition) code to convert the text superimposed on the photo into executable code. In other words, it's hard to believe in 2018 that such a bug could exist. Maybe in the future when such things are more routine...? As an example, OCR used to be hard to do reliably, but now it's a lot more routine and built into a lot of devices.
;Under rare circumstances, a flaw in some versions of Windows could allow Flash to be installed.
:Adobe Flash has been an integral browser plugin for decades, but has fallen out of favor in the 2010s, and eventually discontinued because of its notoriously abysmal security record. All security experts advise against installing it. Preventing installation of Flash would make systems more secure, but most versions of Windows do not prevent Flash installation (provided, as of 2021, the user still has a copy of the files with which to do so). The joke here relates to the difficulty of keeping Flash up to date, or even installed properly to begin with. A common user experience, which is the subject of numerous jokes and memes, is the constant nagging notification to install or update Flash in order for web pages to display properly. Many IT professionals will bemoan the trouble they have experienced in the workplace due to these notifications and problems related to them.
:In late 2020, Microsoft [https://support.microsoft.com/en-us/help/4577586/update-for-removal-of-adobe-flash-player released an optional Windows update] that removes Flash and prevents users from installing it again.
;Turns out the cloud is just other people's computers.
:This refers to a meme that demands that "cloud" be replaced with "other people's computers" in all marketing presentation to CEOs and non-computer literate persons evaluating the security impact of using cloud services. Part of the humor here is that "the cloud" is, in actuality, simply a term for hosted services, or in other words computers being run by other people (typically businesses that specialize in this type of "{{w|Platform as a Service}}" or "PaaS" service model). Referring to "the cloud" as "other people's computers" is, at its core, entirely accurate, though it takes away the business jargon and simplifies the situation in such a way that it might cast doubt on the security, reliability, and general effectiveness of using "cloud" solutions. In [[908: The Cloud]], it turns out that [[Black Hat]] is the "other people" whose computer ''is'' the Cloud.
;A flaw in Mitre's CVE database allows arbitrary code insertion.[[779|[~~CLICK HERE FOR CHEAP VIAGRA~~]]]
:Mitre's CVE database is where all {{w|Common Vulnerabilities and Exposures|CVEs}} are stored. This log message forms the punchline of the comic, as it implies that all of the exaggerated error messages above might have been inserted by hackers exploiting the vulnerability. To pour salt in the wound, they then included in a typical spam link purporting to offer inexpensive {{w|Viagra|brand-name Sildenafil}}.
;It turns out Bruce Schneier is just two mischevious kids in a trenchcoat.
:Appears in the title text. {{w|Bruce Schneier}} is security researcher and blogger. The "two kids in a trenchcoat" is a reference to the {{tvtropes|TotemPoleTrench|Totem Pole Trench}} trope. Shortly before this comic was posted, a [https://rare.us/rare-humor/two-kids-dressed-as-a-tall-man-to-get-into-black-panther-is-caught-on-video story went viral] in which two kids were photographed attempting this for real to get into a screening of ''Black Panther''.

==Transcript==
:[A heading is centered above a list of 21 vulnerabilities]
:<big>Leaked list of major 2018 security vulnerabilities </big>

:CVE-2018-????? Apple products crash when displaying certain Telugu or Bengali letter combinations.
:CVE-2018-????? An attacker can use a timing attack to extploit a race condition in garbage collection to extract a limited number of bits from the Wikipedia article on Claude Shannon.
:CVE-2018-????? At the cafe on Third Street, the Post-it note with the WiFi password is visible from the sidewalk.
:CVE-2018-????? A remote attacker can inject arbitrary text into public-facing pages via the comments box.
:CVE-2018-????? MySQL server 5.5.45 secretly runs two parallel databases for people who say "S-Q-L" and "sequel."
:CVE-2018-????? A flaw in some x86 CPUs could allow a root user to de-escalate to normal account privileges.
:CVE-2018-????? Apple products catch fire when displaying emoji with diacritics.
:CVE-2018-????? An oversight in the rules allows a dog to join a basketball team.
:CVE-2018-????? 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.
:CVE-2018-????? Nobody really knows how hypervisors work.
:CVE-2018-????? 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.
:CVE-2018-????? x86 has way too many instructions.
:CVE-2018-????? NumPy 1.8.0 can factor primes in ''O''(log ''n'') time and must be quietly deprecated before anyone notices.
:CVE-2018-????? Apple products grant remote access if you send them words that break the "I before E" rule.
:CVE-2018-????? Skylake x86 chips can be pried from their sockets using certain flathead screwdrivers.
:CVE-2018-????? Apparently Linus Torvalds can be bribed pretty easily.
:CVE-2018-????? An attacker can execute malicious code on their own machine and no one can stop them.
:CVE-2018-????? Apple products execute any code printed over a photo of a dog with a saddle and a baby riding it.
:CVE-2018-????? Under rare circumstances, a flaw in some versions of Windows could allow Flash to be installed.
:CVE-2018-????? Turns out the cloud is just other people's computers.
:CVE-2018-????? A flaw in Mitre's CVE database allows arbitrary code insertion.[~~Click here for cheap viagra~~]

==Trivia==

*The word "exploit" in the second line is apparently misspelled.
* Randall has previously referenced diacritics in [[1647: Diacritics]].

* Bruce Schneier was previously mentioned in the title texts of [[748: Worst-Case Scenario]] and [[1039: RuBisCO]].

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Comics with lowercase text]]
[[Category:Charts]]
[[Category:Programming]]
[[Category:Computers]]
[[Category:iOS]]

2763: Linguistics Gossip

2023-04-17T07:08:55Z

172.71.158.90: Oops I added the wrong category

{{comic
| number = 2763
| date = April 14, 2023
| title = Linguistics Gossip
| image = linguistics_gossip_2x.png
| imagesize = 269x329px
| noexpand = true
| titletext = The E's wedding invitation definitely used the word LOVE more times than was strictly necessary.
}}

==Explanation==
{{incomplete|Created by Æ's DIVORCE ATTORNEY - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

{{w|Æ}} (pronounced "ash") is a letter formed from a {{w|Ligature (writing)|ligature}} of A and E. Depending on the language, it can be pronounced as a diphthong /ae̯/ (Classical Latin), as an /ɛ/ sound like in "b''e''t" (Old Norse, later forms of Latin), as an /eɪ̯/ like in "oy v''ey''", as an /aɪ̯/ like in "''aye''-aye", or as an /æ/ like in "c''a''t" (Danish, Norwegian, and in the International Phonetic Alphabet).

The comic personifies the letters "A" and "E", imagining that the character Æ represents a romantic relationship between the two. It then imagines a situation in which the two letters end the relationship and eventually marry other letters, giving rise to two new ligatures (A with R and E with V).

The title text continues with the idea of personified letters with E's wedding invitation. In the comic, E's new relationship appears to be with the letter "V" as implied with the statement with E's wedding invitation repeatedly using the word "LOVE", which would spawn many chances to use a V+E ligature. Part of the humor in the title text comes from the idea that the number of times the word "LOVE" is used in a wedding invitation can be defined as "strictly necessary," even though a wedding is a celebration of love. Love (presumably) is the reason for a marriage, or perhaps they are self-deluding themselves, or desperately trying to convince others that it is genuine romance rather than a relationship at least partially on the rebound from the original split. This could also be a reference to strict linguistics and grammar guidelines that do not make sense in a given context.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[There is a broken heart centered at the top of the image. Below that is the capital letter Æ (a letter combining A and E). There are arrows pointing downward — one from the A of Æ to an A, and one from the E to an E. Below this layer is an arrow from the A to a letter combining A and R, and an arrow from the E to a letter combining V and E.]

:[Caption below the panel:]

:Hot linguistics gossip: The '''A''' and '''E''' from '''Æ''' have broken up and are now married to other letters.
{{comic discussion}}
[[Category:Comics with lowercase text]]
[[Category: Language]]
[[Category: Romance]]

1256: Questions

2023-04-06T09:28:13Z

172.71.158.90:

{{comic
| number = 1256
| date = August 26, 2013
| title = Questions
| image = questions.png
| titletext = To whoever typed 'why is arwen dying': GOOD. FUCKING. QUESTION.
}}
A larger version of the picture can be found in http://xkcd.com/1256/large/.
==Explanation==
{{w|Google}}, a rather popular internet search engine{{citation needed}}, has a feature known as [https://support.google.com/websearch/answer/106230?hl=en autocomplete] that guesses at search queries before they are fully typed out. These guesses are generally made based on popular searches by other people. From time to time, a particularly strange or hilarious one may be found, as is evidenced in this comic.

The largest pictured questions are: "Why are there slaves in the bible" and "Why are there ants in my laptop".

All of the questions in the comic are "why" questions, so many of them are predicated on false assumptions, such as "Why are there pyramids on the moon". Originally, all these questions and many more (33,171 in total) could be found at http://xkcd.com/why.txt. ([https://web.archive.org/web/20170510061043/https://xkcd.com/why.txt Archived Version])

Regarding the title text: in the Peter Jackson films of {{w|The Lord of the Rings (film series)|''The Lord of the Rings'' trilogy}}, Arwen becomes sickly for unspecified reasons as the plot advances, apparently giving Aragorn a more personal reason to fight. The only explanation given is by Elrond, who says "As Sauron's power grows, her [Arwen's] strength wanes." This subplot is entirely absent from the {{w|The Lord of the Rings|original novels}}.

From [http://www.imdb.com/title/tt0167260/faq#.2.1.21 IMDB]: <blockquote>
Arwen, like her father (and brothers) is considered to be a Half-Elf, the result of a union between an Elf and a mortal human. The Half-Elven of Middle-earth get a choice, to remain immortal and return to the West (Valinor) or to become mortal and to die as humans do. Elrond chose to remain an Elf. Arwen (like her uncle Elros) chooses to become mortal in order to wed and remain with Aragorn. Elrond senses this; this is what he means when he says that Arwen is dying. It is the same as in The Last Unicorn, when the unicorn is given the form of a human woman and can feel that she is no longer immortal ("I can feel this body dying all around me"). According to Tolkien, though, after Aragorn dies in the year 120 (Fourth Age), Arwen returns to Lórien, where she dies by choice the following winter. </blockquote>

==Selected answers==
The tables below have been created so as to split the comic into almost entirely arbitrary blocks, which have then been identified with similarly arbitrary numbers. As a general rule, section numbers work top to bottom, then right to left.
===Illustrated Panels===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
|Why aren't my arms growing?||Arms stop growing because longer arms would not be a very useful way to spend resources. Human DNA has programmed the body to gradually ossify (turn to bone) the growing arms and legs, closing the {{w|epiphyseal plate}} (the flat plate at the end of each long bone), at which point they stop growing. Alternately, the muscles of the arm, which may have been the intended subject of the question, may fail to grow if not exercised with appropriate resistance, repetition or frequency; if nutrition is insufficient; if insufficient recovery time is given; or if sufficient levels of certain hormones like growth hormone or testosterone are not present.
|-
|Why are there ghosts?||There is no hard evidence of ghosts. The reason you are seeing ghosts could be {{w|pareidolia}} or some cognitive bias.
|-
|Why are there squirrels?||Squirrels are the product of a long sequence of evolution, like any other animal. They persist because they effectively reproduce and compete for resources within their niche, but they are also the product of many circumstantial events that has led to them being the way they are.
|-
|Why is sex so important?||Sex is important biologically because it is the primary method of reproduction in many different species, and culturally because it both plays an important role in human relationship and causes hard-to-control urges that affect behaviour. However, it can be of varying importance to different people (see [http://www.asexuality.org/home/?q=overview.html asexuality]).
|-
| Why aren't there guns in Harry Potter? || In the ''{{w|Harry Potter}}'' universe {{w|guns}} ''do'' exist and are mentioned at the beginning of ''{{w|Harry Potter and the Prisoner of Azkaban}}'', when the news gives a warning that Sirius Black has one. Muggle technology (human inventions) are often looked down on by wizards - the majority of half-blooded wizards won't touch one, let alone a wizard extremist like {{w|Voldemort}}. Not only does any Muggle device more complex than a wristwatch interfere with magical artifacts, but wands are usually more versatile than most guns; a revolver can't shoot lightning, summon items or teleport its user. Finally, while Harry himself may or may not consider using firearms due to his Muggle upbringing, ''Harry Potter'' is set in the United Kingdom (which has stricter gun laws than, say, the United States).
|-
|-
|}

===Section One===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why do whales jump? || Partly to get air, partly because it's an effective way to catch prey near the surface, and partly because they just seem to find it fun - it's like going into outer space!{{Actual citation needed}}
|-
|Why are witches green? || See {{w|Wizard of Oz}}.
|-
|Why are there mirrors above beds?|| Often, these are used by couples to view themselves during coitus.
|-
|Why do I say Uh?||See ''[http://www.theregister.co.uk/2006/05/06/the_odd_body_language_fillers/ Why do we say 'um', 'er', or 'ah' when we hesitate in speaking?]''.
|-
| Why is sea salt better? || The question likely refers to the difference between common {{w|Fortified table salt}} and usually more expensive sea salt. While the major part of both of these is sodium chloride (NaCl) the idea behind the claim is the different composition mostly in regards to trace elements of sea salt compared to "normal" salt. Table salt's composition is often influenced by a country's health department and thus addition of trace elements is regulated. While these regulations are based on scientific studies there remain to be debates concerning the additions, such as iodine.
|-
| Why are there trees in the middle of fields? || Many images of fields contain singular trees in the middle of them. While there exist such trees it is likely an artistic choice to give a more pleasing or aesthetically satisfying image compared to just a field. In modern agriculture those would in fact be quite troublesome since they are a hindrance to large machines used and a new tree would be unlikely to grow in a constantly worked field, although they can be useful in fields for grazing animals, since they provide shade. Before mechanized agriculture, such trees would also be planted to give the workers a place rest in the shade without having to go all the way back from a large field.
|-
| Why is there not a Pokémon MMO? || {{w|Pokémon}} is a popular franchise, spanning game consoles, anime series, a trading card game, and many other things. Among fans, it is a frequent topic of discussion why a Pokémon {{w|massively multiplayer online game}} has not been officially announced by the series' developers {{w|Game Freak}}, as they often [http://www.dorkly.com/comic/52546/be-careful-what-you-wish-for predict] that such a game would be extremely popular, and bring in massive revenue for the company. However, if Game Freak were to develop a Pokémon MMO the MMOs would be strong competition against the console games and therefore reducing the Pokémon demographic significantly. The mobile app {{w|Pokémon Go}} has since partly filled the MMO niche, with multiplayer interactivity through item drops and fighting at gyms.
|-
|Why is there laughing in TV shows? || Sitcoms were once filmed with an audience, so the actors could respond to their reactions. That's the historical reason why there were laughs in TV shows. The tradition continues, with the difference that now the laughter mostly comes from recorded tapes. See {{w|Laugh track}}.
|-
|Why are there doors on the freeway?|| Highway/freeway {{w|noise barrier|noise barriers}} sometimes have doors in them to allow workers access to both sides of the barrier.
|-
|Why are there so many svchost.exe running?||See {{w|svchost.exe}}.
|-
| Why aren't there any countries in Antarctica? || {{w|Antarctica}} is the southern most continent and is by large covered in ice and in general pretty cold. While it is a regular target of tourists and researchers it also lacks native human inhabitants. At the moment, the territorial claims concerning Antarctica are mostly handled via the {{w|Antarctic Treaty System}}. In short there are a few countries who claim certain parts of the continent as their own in theory but so far it is considered neutral territory and most maps don't concern themselves with displaying the (in some regards disputed) territorial claims because they do not matter at this point in time. If there are ever any worthwhile resources discovered, this might change.
|-
|Why are there scary sounds in Minecraft?|| To add atmosphere and to give players hints when there is a dark cave nearby. See [http://minecraft.gamepedia.com/Ambience Minecraft Wiki].
|-
|Why is there kicking in my stomach?||See ''[http://www.webmd.com/baby/fetal-movement-feeling-baby-kick Feeling Your Baby Kick]''. Here, ''stomach'' means ''abdomen''.
|-
|Why are there two slashes after http?||See ''[http://www.dailymail.co.uk/sciencetech/article-1220286/Sir-Tim-Berners-Lee-admits-forward-slashes-web-address-mistake.html Sir Tim Berners-Lee admits the forward slashes in every web address 'were a mistake']''.
|-
|Why are there celebrities?||There are certain people who are more respected and well-known than other people, whether it be because of their acting career, major advancements to science, or a sex tape.
|-
|Why do snakes exist?|| The question is rather general and likely based on a widespread dislike for the reptilians. Be it due to their appearance, their spread, or the danger a few snakes pose to humans (often due to being venomous) many people have a dislike for snakes and would prefer them to not exist (similar to spiders).
In regards to "why do snakes exist on earth?": Because evolution. Snakes fill a gap in the ecosystem as predators and hunt different species, including vermin. Snakes are in that regard similar to many other predatory animals. The question on why snakes developed with their distinct streamlined shape is still debated but {{w|snakes|likely it either provided an advantage when burrowing or swimming}}.
|-
|Why do oysters have pearls?||{{w|pearl|From Wikipedia}}: <blockquote>Pearls are formed inside the shell of certain mollusks as a defense mechanism against a potentially threatening irritant such as a parasite inside the shell, or an attack from outside, injuring the mantle tissue. The mollusk creates a pearl sac to seal off the irritation. Pearls are commonly viewed by scientists as a by-product of an adaptive immune system-like function.</blockquote>
|-
|Why are ducks called ducks?||See {{w|Duck#Etymology}}. {{Wiktionary|duck|According to Wiktionary}}, the noun ''duck'' can be traced back to the {{w|Proto-Germanic language|Proto-Germanic}} word {{Wiktionary|Appendix:Proto-Germanic/dūkaną|''dūkaną''}} ("to dive, bend down"), and, in turn, the {{w|Proto-Indo-European language|Proto-Indo-European}} {{Wiktionary|Appendix:Proto-Indo-European/dʰewb-|''dʰewb-''}} ("deep, hollow"), which is the origin of the verb ''to duck''. The link between the noun and the verb comes from ducks' tendency to dive under water for short periods of time.
|-
|Why do they call it the clap?||An old folk remedy for {{w|gonorrhea}} was to clap on the sides of the penis.
|-
|Why are Kyle and Cartman friends?|| The question relates to the TV show {{w|South Park}}. Both are children living in the small titular town in Colorado. Cartman is widely accepted to a be very bad person, one of his many character flaws being his antisemitism. Kyle on the other hand is a Jew. However, both, along with two other kids, Stan and Kenny, are the core focus of the show (or used to be) and to some extent are considered to be friends. While there are episodes which show Cartman being not entirely a horrible person and him holding Kyle in a position of at least a worthy adversary, most of the time the question should be "Why is anyone friends with Cartman?" However, they most likely remain "friends" because they are in the same class at school and are therefore "forced" to be around one another.
|-
|Why is there an arrow on Aang's head?||{{w|Avatar: The Last Airbender#Characters|Aang}} is the main character of the TV series {{w|Avatar the last Airbender|Avatar - The Last Airbender}} and features as part of a large body spanning tattoo an arrow on his head. These tattoos are made to replicate the markings of one of the shows fictional animals, the air bison which are regarded as the original air benders. They are given to human air benders once they attain the status of masters. Because Aang acquired this status very early in life he was already tattooed accordingly.
|-
|Why are text messages blue?||This likely refers to iMessage chat being blue. These messages are blue when sending a message to another apple device. When sent as an SMS message, they will be green.
|-
|Why are there mustaches on clothes?||Because some people buy them. Mustaches, especially handlebar-style mustaches, were a popular fad at the time of this comic.
|-
|Why are there mustaches on cars?||Fuzzy pink mustaches are used to designate cars in the {{w|Lyft}} service.
|-
|Why are there mustaches everywhere?||See {{w|Movember}}
|-
|Why are there so many birds in Ohio?||There are an estimated [http://oh.audubon.org/bsc/SOTB.html 400 bird species] in {{w|List of birds of Ohio|Ohio}}, but there are [http://www.jstor.org/discover/2419997sid=21104910103541&uid=4&uid=3739776&uid=2&uid=3739256 2.74 nesting pairs per acre].
|-
|Why is there so much rain in Ohio?|| {{w|lake_effect|Lake-effect}} rain develops in the same manner as lake-effect snow.
|-
|Why is Ohio weather so weird?||See {{w|Lake-effect snow}}.
|-
|}

===Section Two===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are there male and female bikes? || {{w|bicycle|From Wikipedia}}: <blockquote>Historically, women's bicycle frames had a top tube that connected in the middle of the seat tube instead of the top, resulting in a lower {{w|Frame geometry|standover height}} at the expense of compromised structural integrity, since this places a strong bending load in the seat tube, and bicycle frame members are typically weak in bending. This design, referred to as a '''''{{w|step-through frame}}''''' or as an ''open frame'', allows the rider to mount and dismount in a dignified way while wearing a skirt or dress.</blockquote>
|-
|Why are there bridesmaids?||See {{w|Bridesmaid#Origin and history}}.
|-
|Why do dying people reach up?|| In many works of fiction dying people are regarded with an outstretched arm, grasping for unseen objects towards the sky. In all likelihood this originates in the idea of heaven as the place where (good) people go after death. People "reach for the light" which is seen when dying according to similar beliefs or possibly for already dead relatives or other associated people waiting for them. An alternative hypothesis is that they want to hug/touch their loved ones one last time.
|-
|Why aren't there varicose arteries?||Blood moves through veins due to irregular pressure from skeletal muscles combined with valves to control direction. In varicose veins these valves malfunction affecting blood flow. In arteries blood flow is produced directly from pressure caused by the heart.
|-
|Why are old Klingons different?|| {{w|Klingon Redesign|From Wikipedia}}: <blockquote>For {{w|Star Trek: The Motion Picture}} (1979), the Klingons were retconned and their appearance and behavior radically changed. To give the aliens a more sophisticated and threatening demeanor, the Klingons were depicted with ridged foreheads, snagged and prominent teeth, and a defined language and alphabet. Lee Cole, a production designer, used red gels and primitive shapes in the design of Klingon consoles and ship interiors, which took on a dark and moody atmosphere. The alphabet was designed as angular, with sharp edges harkening to the Klingon's militaristic focus.[5] Costume designer Robert Fletcher created new uniforms for the Klingons, reminiscent of feudal Japanese armor.</blockquote>

Additionally, there is an in-universe explanation: A [http://memory-alpha.wikia.com/wiki/Klingon_augment_virus Klingon augment virus] was deployed to make enhanced warriors, but accidentally made weaker Klingons with human-like features. These afflicted Klingons were the ones seen in the original series.

|-
|Why is programming so hard?||Programming is the art of writing instructions for a computer to do. Since the computer has a limited set of instructions for you to use it involves a new way of thinking for many. It is also hard because the computer itself is not smart or adaptable to unexpected problems. For instance when humans are told to sort books in a shelf, they can do that even if there are things in the way (simply moving them to the side). A computer will generally just crash if it doesn't have instructions on how to deal with the unexpected problem.
|-
|Why is there a 0 Ohm resistor?|| A resistor is usually designed to create a certain resistance, measured in {{w|Ohm}} in an electronic device. A 0 Ohm resistor seems pointless as it would only provide the same resistance as a normal cable. However, Wikipedia's {{w|Zero-ohm link}} article gives sufficient explanation.
|-
|Why do Americans hate soccer? || Soccer, or (association) football in British English, is rather unpopular in the USA compared to most other regions of the world. Finding a particular reason behind the (dis)like for certain sports, apart from cultural spread, is difficult. One possible explanation is soccer's tendency to have far fewer points scored in an average game and a higher likelihood of draws compared to such things as American Football, basketball or baseball, which are far more popular. In how far this is a legitimate argument for regarding soccer as "less interesting" is up to debate.
This assumption that Americans dislike soccer is also somewhat dated; the national Womens' team is the most successful in the world, having won 4 FIFA Women's World Cups and consistently encouraging more youngsters to take up the sport. Unfortunately, when it comes to the professional game, the National Soccer League still has a long way to go to catch up with the dominance and name recognition of the NFL (American football) (due primarily to the spectacle of the Super Bowl), the MLB (baseball) (partly credited to the dominance of the New York Yankees and the pageantry of the World Series), and the NBA (basketball), due to the makeup of the American professional sports industry during its golden years in the 1970s & 80s.
|-
|Why do rhymes sound good?||The brain enjoys repetition, especially in music.
|-
|Why do trees die?||Some common reasons include lack of water, lack of nitrogen in the soil and being chopped down.
|-
|Why is there no sound on CNN?||Some stations broadcast a {{w|second audio program}}, an alternative sound track that your TV can be configured to use instead of the primary program. This is intended to be used for broadcasting in an alternate language, or for {{w|Descriptive Video Service}} to make a program accessible to the visually impaired. Many programs that don't actually use SAP will still broadcast an SAP that is identical to the primary program; however, this is not required. If your TV is configured to use SAP and a particular channel isn't broadcasting SAP at that time, there won't be any sound.
|-
|Why aren't Pokémon real?||Pokémon are fantasized creatures that were designed to produce an interesting battle mechanic in a game. Some of the Pokémons abilities would be impossible on earth as we know it. For instance, Magcargo is hotter than the surface of the sun.<ref name="Bulbapedia Magcargo">http://bulbapedia.bulbagarden.net/wiki/Magcargo#Trivia</ref>
|-
|Why aren't bullets sharp?||See {{w|Terminal ballistics}}.
|-
|Why do dreams seem so real?|| Most dreams occur during a stage known as REM (Rapid Eye Movement). During REM, your brain is highly active and its wave pattern is the same as the wave patterns in a person who is awake. It should be noted that dreams can occur during other stages of sleep but most dreams that are vivid occur during the REM stage.
|-
|}

===Section Three===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why do testicles move?|| The scrotum shrinks and expands to account for temperature changes.
|-
| Why are there psychics?|| A {{w|Psychic}} is a supposed user of anomalous powers. Studies have classified psychic powers as pseudoscience. The existence of psychics appears to be as an economic incentive.
|-
| Why are hats so expensive?|| Hats can be expensive depending on the quality of material, size, location, and demand. A probable answer is that hats are simply difficult to make, causing high prices. Another likely cause is the fact that hats are not widely worn in much of the western world and people who do wear them often have far fewer than they have, for example, shirts, meaning that manufacturers cannot get the same economies of scale in production and distribution.
|-
| Why is there caffeine in my shampoo?|| Because the producers want you to believe that caffeine penetrates the hair roots and thereby somehow protects it from negative testosterone impacts and from premature hair loss.
|-
| Why do your boobs hurt?|| Common reasons are a badly-fitted bra or {{w|PMS}}. It could also be a hormone imbalance, breastfeeding, large or awkwardly shaped breasts or a serious condition such as {{w|breast cancer}}.
|}

===Section Four===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why aren't economists rich? || Economists study how society organizes resources but, contrary to the popular misconception, don't focus much on the short-term behavior of the stock market (a system that is still poorly understood). In order to become rich, in most cases one has to own a commodity that produces more wealth, such as a large company, or be related to somebody who has done so. In rare cases, a particularly lucky individual could become rich by having an unusually high paying job, such as a famous actor or sports star. Neither of these situations are likely for someone studying the field of economics. Some economists do get very rich as strategists for banks and businesses, but most are just academics and analysts.
|-
| Why do Americans call it soccer? || {{w|Association football}} is called "soccer" ("association" + "-er") in American English because {{w|American Football}} is the more popular version there. Of note is that the word "soccer" originates on British soil, to distinguish it from Rugby football aka "rugger".
|-
| Why are my ears ringing? || {{w|Tinnitus}}, or ringing of the ears, can result from stress, foreign objects in the ear, hearing damage, wax build up, or any other number of causes.
|-
| Why are there so many Avengers? ||The number of Avengers has [http://en.wikipedia.org/wiki/List_of_Avengers_members varied greatly] over the years and decades, each time with its own justification for why they need to work together, but the simplest answer is money. Cross-branding and cross-merchandising is successful to the brand and brings in new readers, plus creates a new franchise to profit from.
|-
|Why are the Avengers fighting the X Men || {{w|Avengers vs. X-Men}} was a 2012 Marvel crossover event that, like many other recent comic book events, had heroes fight other heroes. In this case, the {{w|Avengers (comics)|Avengers}} and the {{w|X-Men}} fought over the {{w|Phoenix Force (comics)|Phoenix Force}}, a godlike power that often possesses {{w|Jean Grey}} or her descendants (in this case, her alternate universe daughter Hope Summers). The Avengers believed the Phoenix Force is too powerful for humanity to control and wanted to contain it, while the X-Men believed the Phoenix was the messiah for mutants and could fix all of the Earth's problems.
|-
|Why is Wolverine not in the Avengers || Wolverine ''has'' been an Avenger, in some circumstances. e.g. in the {{w|The Avengers: Earth's Mightiest Heroes}} cartoon series, the episode ''New Avengers'' had Wolverine (along with Spider-man, War Machine, The Thing and Luke Cage and Iron Fist) substitute while the 'original' Avengers were unavailable to deal with the current crisis (which of course included the fate of the 'proper' Avengers). However, in general his anti-authority personality makes him a difficult team-member to field, and he has frequently disassociated himself even from the X-Men. But, in Avengers vs. X-Men (see above) Wolverine ''sided'' with The Avengers, and more modern treatments have even included the character in about as much a permanent a membership of the group as Logan is ever likely to have.

But if the question is about why Wolverine didn't appear in {{w|The Avengers (2012 film)|''The Avengers''}}, the answer is that ''The Avengers'' is being produced by Marvel/Disney, while Fox still has the rights to the X-Men and all Marvel mutants in general. Unless there is studio agreement, the two properties cannot cross, except through complicated machinations. For example, there are plans to bring Avengers mainstays Quicksilver and The Scarlet Witch to both the ''Avengers'' and ''X-Men'' franchises, but only the Fox films have the right to call them the children of Magneto, and Marvel/Disney cannot even identify them on-screen as "mutants".
|}

===Section Five===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
|Why are there ants in my laptop? || Ants usually come in your laptop when there are little crumbs of food. It is advised to get screen protectors.
|-
| Why is Earth tilted? || The Earth's axial "tilt", wherein its axis of rotation is not perpendicular it its orbit, is a result of conservation of momentum when the Earth was formed, because not everything orbits in the same way. This is pure happenstance.
|-
| Why is space black? || What we call black is the absence of light. Space is mostly empty, and although there are many stars, the light from most of these stars hasn't reached us yet. In addition, a lot of light has been stretched by {{w|redshift}} so it's no longer visible to us. See {{w|Olbers' paradox}}
|-
| Why is outer space so cold? || It's hard to actually define a temperature for space - it's empty, so there's nothing to measure. However, most of space has very little radiation hitting it, so a person won't receive any energy, but will still radiate some away, resulting in a net loss of energy, colloquially "heat." Around the Earth, objects in direct sunlight will actually get very hot. In deep space, there is almost no warming radiation.
|-
| Why are there pyramids on the moon? || There are no pyramids on the moon. However, the appearance of mountains and some craters on the moon have fooled some into believing there are pyramids on the moon, but these claims are false.
|-
| Why is NASA shutting down? ||NASA isn't shutting down. This question might have something to do with the {{w|United States federal government shutdown of 2013}} or perhaps due to the {{w|Space Shuttle program}} ending in 2011, but that is not the entirety of NASA.
|}

===Section Six===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are there tiny spiders in my house?
|rowspan="6"|During autumn in particular male spiders reaching maturing will set off to find a mate. By chance they may end up in your house. When encountering spiders in large numbers, it is more likely that they are young from the same female spider. Females lay {{w|Spider#Reproduction_and_life_cycle|up to 3,000}} eggs at a time. These questions also plays off of Munroe's longstanding fear of spiders, especially the [http://www.explainxkcd.com/wiki/index.php/8:_Red_spiders red spiders] mentioned in [http://www.explainxkcd.com/wiki/index.php/Category:Red_Spiders several early comics].
|-
| Why do spiders come inside?
|-
| Why are there huge spiders in my house?
|-
| Why are there lots of spiders in my house?
|-
| Why are there spiders in my room?
|-
| Why are there so many spiders in my room?
|-
| Why do spider bites itch? ||This mostly happens as an immune response to [http://www.mnn.com/health/fitness-well-being/stories/why-do-mosquito-bites-itch histamines] under the skin which are injected through saliva.
|-
| Why is dying so scary? ||Part of human nature is the fear of the unknown, and death is the ultimate unknown because it is not knowable until it's experienced, and there is nobody to report what the result was. This leaves it open to speculation, and many major religions are based on preparing ones soul for death. Also, dying would leave loved ones families with the responsibility of taking care of their remains and finances. And finally, most people don't want to die, living for as long as possible, possibly because the unknown is too unbearable to cope with. Several causes of death are known to inflict pain to the victim, and fear of pain is an instilled evolutionary safeguard for preventing harm to a sapient creature. Still though several people are not afraid of death and dying, and recognize life is short and to cherish each moment while we can. Death is inevitable, so we should not fear it. In addition, it would be evolutionarily advantageous for our ancestors to have feared and avoided death.
|-
| Why is there no GPS in laptops? ||It is not impossible for laptops to have a GPS, and some do. But there are [http://security.stackexchange.com/questions/50907/are-there-gps-tracker-for-laptops design difficulties] that have to be overcome including battery draining, room within the crowded device to place a receiver, WiFi can give a location just as well, and the product casing could interfere with its ability to functional normally and receive the signals necessary to operate as intended. Some Dell computers have these, but the privacy one needs to give up to accept the terms and conditions makes it unfavorable.
|-
| Why do knees click? || Typical of other clicking and cracking of joints, this may be the sound of [http://www.webmd.com/pain-management/knee-pain/features/knee-cracks-pops ligaments tightening]. However do not rely on a wiki to diagnose a medical conditions. Consult a licensed physician.
|-
|-
| Why aren't there E grades? ||E grades [http://www.todayifoundout.com/index.php/2014/02/e-f-grading-scale/ actually exist] in some districts, but they are rare. In their long and bizarre history, E was originally used where F is today (E was the lowest grade), but in those systems, students often received E's for an "Excellent" grade, creating much confusion. F was used in place instead and E was eliminated from a standard grading scale.
|-
| Why is isolation bad? ||Isolation is when a person deliberately secludes themselves away from others, often far-removed from society. This can happen in locations as small as a city apartment and as large as the open woods. People evolved as social animals and it is generally held that those who isolate themselves suffer from depression or other forms of psychological imbalance. Of course society can trigger many of these imbalances causing an individual to isolate themselves. Isolation is often seen as therapeutic so people can spend time with themselves constructively, often finding peace within themselves and through mediation. Monks and hermits generally live in solitude as well. Many people view a decision to be isolated as noble, and others as healthy. While general interaction is largely healthy, in the crowded modern world, isolation is neither good or bad; it depends on the person and what that isolation does to them.
|-
| Why do boys like me? ||Attraction comes in many forms: physical, emotional, intellectual, spiritual, among others. Some people will lie about what they like about you to get something from you (money, sex, etc.), but most are genuine. It is not possible to assert definitively why one person may like another person, and that is something that needs to be discussed openly and honestly with them and nobody else.
|-
| Why don't boys like me? ||Similar to the answer above about what makes one desirable to another, there are an equal number of factors that make one unappealing. This can include everything from physical appearance to how one treats others. If a person is rude and unfriendly, most people find that not-conducive to healthy relationship and avoid the person who is asking. Not being liked by someone you like however does not mean you're wrong or are a bad person and in most cases has to do with the person you are asking about.
|-
| Why is there always a Java update? ||[https://www.java.com/en/download/faq/whatis_java.xml Java] is a software that runs on most computers and mobile devices that is crucial to its security and stability. The reason why it always updates is because it needs to stay current with the ever-upgrading fleet of browsers, operating systems and software that supports Java. Additionally Java updates itself so each version can run optimally. Software coding and debugging is a never-ending process towards perfectly stable releases.
|-
| Why are there red dots on my thighs? || This might be [http://en.wikipedia.org/wiki/Petechia Petechia], which are broken blood vessels, however do not rely on a wiki to diagnose medical conditions. Consult a licensed physician.
|-
| Why is lying good? ||Lying and other forms of dishonesty is typically seen as bad because it lowers one's credibility and makes them less likely to be trusted in the future. It is almost always advantageous to tell the truth, as lies have a way of escalating as you need to keep expanding on the lie to cover your tracks. There are instances however where lying may be used in more noble circumstances. For example, if a friend asks your opinion on something they have made (such as a poem or painting) that you do not like, it is okay to tell them you like it because protecting their feelings and your relationship is more important than how you feel. Often military personnel are trained to keep national security secrets at all costs and will lie about what they know to save themselves and the country.
|}

===Section Seven===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are there slaves in the bible? ||Slavery was viewed differently in the early years of human civilization before the contemporary moral and ethical conversations began centuries later. The Jewish legal system as presented in the bible {{w|The Bible and slavery|justified slavery}} for a number of reasons, notably to pay off some sort of debt. Slaves were seen as property and their work provided value to the slave owner, but such a relationship was legally required to be temporary and slaves had some basic human rights. Similarly slave owners rationalized their ownership through scripture, pointing out that it was in the Bible and therefore okay with God — without wishing to go off on a tangent, if you have to rationalize your system of slavery then it's probably illegal under historic Jewish law.
|-
| Why do twins have different fingerprints? || Fingerprints are not only from the DNA, but from the conditions in the womb which differ from child to child.
|-
| Why are Americans afraid of dragons? ||This question was the title of a [http://blogs.sfu.ca/courses/spring2012/engl387/wp-content/uploads/2012/02/Why-are-Americans-Afraid-of-Dragons.docx 1974 essay] by Ursula K. LeGeuin in which she makes a [http://en.wikipedia.org/wiki/Semiotics semiotic] analysis of dragon mythology. She argues that our belief in dragons (and those outside of America as well) stems from childhood, much like other ferocious fictional creatures such as goblins and hobbits, but many hold onto these fears as a way of avoiding reality. In her closing argument, she writes, "They know that its truth challenges, even threatens, all that is false, all that is phony, unnecessary, and trivial in the life they have let themselves be forced into living. They are afraid of dragons, because they are afraid of freedom."
|-
| Why is HTTPS crossed out in red? || The site accessed has an invalid SSL certificate. See [[Red Line Through HTTPS]].
|-
| Why is there a line through HTTPS? || The site accessed has an invalid SSL certificate.
|-
| Why is there a red line through HTTPS on Facebook? || Facebook has an invalid SSL certificate.
|-
| Why is HTTPS important? || For security reasons, as a site with HTTPS has encrypted traffic.
|}

===Section Eight===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are there swarms of gnats? || The reason gnats (and other creatures) tend to swarm together is likely a safety-in-numbers protection, and as a big gathering to find a mate.
|-
| Why is there phlegm? ||{{w|Phlegm#Phlegm|Phlegm}} is a thick, viscous fluid produced by the mucus membranes as a way to clear the airway and aids in the release of bacteria, disease and debris in those passages.
|-
| Why are there so many crows in Rochester, MN || From a Minnesota Paper, [http://www.startribune.com/local/138902104.html the Star Tribune], "Laws prevent the city from poisoning the crows". "Duffy [ {{w|Steve Duffy}}, a co-owner of U.S. Bird Abatement Services, which has contracted with Rochester to get rid of the crows] isn't sure why Rochester has such a bad crow problem; probably a confluence of many bird-friendly conditions that has also made it a magnet for {{w|geese}}. He's seen worse cases, but called Rochester's situation 'hideous.'" And best of all, "The city has twice this winter hired experts to chase them off. They tried {{w|lasers}} and bullhorns — hey, get out of here, you crows — and even employed raptors to pick them off, one by one. That worked, for awhile." Unfortunately, they mean a {{w|bird of prey}}, not a {{w|velociraptor}}.
|-
| Why is Psychic weak to Bug || In Pokémon, Pokémon of the Psychic type like Alakazam are weak to three types of attacks: Ghost, Dark, and Bug. The general theory is that Psychic Pokémon, relying heavily on their thoughts for attacks, are weak to fears, which ghosts, darkness, and bugs can be classified as.
|-
| Why do children get cancer? ||{{w|Cancer}} is an aggressive and often fatal disease that has the potential to affect all humans as well as other organisms. There are multiple types of cancer, each with their own epidemiology, but children are not immune to succumbing to the horrific effects of the disease. Children are human beings{{citation needed}} and are subject to the same illnesses adults have, regardless of age, or their innocence. There is no divine or supernatural explanation for this. Simply put, life is a battle for all humans regardless of how small they are.
|-
| Why is Poseidon angry with Odysseus? || {{w|Poseidon}} was the patron deity of the city of {{w|Troy}}, which after a 10 years siege by the Greeks fell due to {{w|Odysseus}}' strategem of the {{w|Trojan_Horse|Trojan horse}}. As the Greeks were returning home after the Trojan War, Oddyseus' ship accidentally landed on the island home of the cyclops Polyphemus, who imprisoned the crew and ate many of them. In order to escape, Odysseus blinded the cyclops. Poseidon, Polyphemus' father, was extremely angered by his son being blinded, so he cursed Odysseus' ship to prevent him from reaching his home in {{W|Ithaca}}. The adventures which Odysseus encountered during his quest for reaching Ithaca are the main theme of {{w|Homer|Homer's}} {{w|Odyssey}} The Odyssey also says that before sailing, the crew forgot to offer a sacrifice as was ordained.
|-
| Why is there ice in space? || Space is {{w|Outer_space#Environment|Cold}}. The background radiation, which is used to measure the temperature of space's vacuum, is estimated at about 3K (−270 °C; −454 °F). Water freezes at 273.15 K (0 °C; 32 °F). Because the temperature in space is less than the freezing point of water, liquids freeze in space, turning into ice.
|}

===Section Nine===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why is there an owl in my back yard? || Owls can be seen all over the world, and live in a wide variety of habitats. They are mainly noctural, and spend a large portion of the night hunting. The owl in your back yard is likely looking for food.
|-
| Why is there an owl outside my window? || As with the question above, the owl is likely to be hunting for food.
|-
| Why is there an owl on the dollar bill? || On the front of a dollar bill, near the upper right '1' is a tiny section of the design which can be seen to represent an owl. Conspiracy theorists will note that owls were symbolically linked to the Masons, while others will instead see a spider.
|-
| Why do owls attack people? || While owls and human often live in close proximity without problems, as with other species, owls may attack if they feel threatened. When people irritate or otherwise make owls feel unsafe, they retaliate with violence to protect themselves.
|-
| Why are AK47s so expensive? || The market value of an AK47 varies depending on where in the world you live. With strict gun control laws, obtaining an AK47 in the UK is likely to be more expensive due to the risks involved for those supplying the weapon. In former Soviet republics and the Middle East, AK47s are more plentiful, and hence the price is likely to be lower.
|-
| Why are there helicopters circling my house? ||People living in high-crime areas will often hear helicopters circling, especially at night, when police use the helicopter's searchlight to locate and track suspects, or to light a crime scene. Those Googling this question might be wondering if a dangerous fugitive is nearby, or what else may be going on.
Potentially, the questioner may be hallucinating the helicopters or imagining themselves as the target due to {{w|paranoid schizophrenia}}, in which either a neurochemical imbalance or distorted thought patterns causes {{w|delusions of persecution}}.
Alternately, this question may be a joke because it is so incongruous to the others in this section. The joke is that people would be Googling about owls attacking people and assault rifle prices, which could, ostensibly alert authorities to come to your house to arrest you.
|}

===Section Ten===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are there gods? || Gods and goddesses are part of mythology and folklore that are used to give spiritual guidance as well as explanations for phenomena that are yet unexplained by natural processes.
|-
|Why are there two Spocks? || This is probably a reference to the {{w|Star_Trek_(film)|2009 Star Trek movie}} in which the franchise was given a {{w|Reboot_(fiction)|continuity reboot}}. The modified setting is explained in-universe by time travel, with both the villain Nero and the original-timeline Spock being brought back from the 24th century to the 23rd, creating a timeline in which both older Spock (played by Leonard Nimoy) and the younger Spock (played by Zachary Quinto) coexist.

Another possibility is that the question refers to the episode {{w|Mirror,_Mirror_(Star_Trek:_The_Original_Series)|"Mirror, Mirror"}}, which mostly takes place in an alternate universe populated by ruthless versions of most of the characters (including Spock).
|-
| Why is Mt Vesuvius there? ||The simple answer is that volcanoes are created by interactions where the Earth's tectonic plates meet. These conditions only exist in a few places on Earth. The question could also be asking, "why is Mt Vesuvius near such a heavily populated area?" Humans have lived near Vesuvius throughout history, due to its pleasant climate, rich soil, and proximity to other major cities. The Italian government [http://www.theguardian.com/world/2003/jun/05/italy.sophiearie offers generous cash incentives] to move people away from the danger zone, but finds few takers.This question could also be a reference to mountaineer {{w|George Mallory}}'s famous answer as to why he wanted to climb Mount Everest: "Because it's there."
|-
| Why do they say T minus? || Time before the launch of a spacecraft is denoted as T minus because the launch has not happened yet. Any time after the launched is stated without the minus, for example T 3 seconds, so time before the launch can be seen as "minus" time. The T stands for "Test" or "Time".
|-
| Why are there obelisks? || {{w|Obelisk}} article has more information.
|-
| Why are wrestlers always wet? || Professional wrestling is strenuous activity, whether its fake or not. Strenuous activity results in sweat, giving the bodyan appearance of being wet. Greco-roman wrestling and Turkish Oil Wrestling both involve oiling the body, giving a similar appearance.
|-
| Why are oceans becoming more acidic? || Due to the higher amount of carbon dioxide on the atmosphere, which dissolves in the oceans turning into carbonic acid - CO2+H2O=H2CO3 (see {{w|Ocean acidification}})
|-
| Why is Arwen dying? || {{w|Elf (Middle-Earth)#Death|Elves}} can die from grief.
|-
| Why aren't my quail laying eggs? || Not enough sunlight/calcium, or they are egg bound(very serious)?
|-
| Why aren't my quail eggs hatching? || Problems in incubation, or the eggs may not be fertilized.
|-
|Why aren't there any foreign military bases in America? || ''Further information: {{w|United States military deployments}}''This is a very interesting question, albeit one likely based on a regional misunderstanding. Presumably, this question is asked by Americans who assume that the existence of {{w|Category:Military facilities of the United States by country|U.S. military bases abroad}} is a general trend among countries, as opposed to being the rarity that it is. In fact, {{w|List of countries with overseas military bases|only a handful of other countries}} have military bases outside of their borders, and the three—{{w|France}}, the {{w|United Kingdom}}, and {{w|Russia}}—that have more than one or two are all countries that, like the United States, {{w|Allies of World War II|were on the winning side of World War II}}, have {{w|List of countries by military expenditures|massive military expenditures}}, and have {{w|United Nations Security Council veto power|UN Security Council vetoes}}. In other words, only the most militarily elite countries have bases overseas. The U.S. is unique, however, in that it has far more overseas bases than any other country (and, pretty much, far more of anything else than any other country, when it comes to the military), and in that {{w|List of United States military bases|it has bases in several other highly-industrialized nations}}, including {{w|List of United States Army installations in South Korea|South Korea}} and the United Kingdom, and, most notably, the World War II {{w|Axis powers}}: {{w|List of United States Army installations in Germany|Germany}}, {{w|United States s Japan|Japan}}, and {{w|List of United States Army installations in Italy|Italy}}. France, Russia, and the U.K.'s bases, on the other hand, are almost all within areas that they previously controlled.These bases can be controversial in some countries, while in others they are a major source of economic and political stability. The U.S. traditionally justifies their presence as a necessary and crucial element in its efforts to promote peace domestically and worldwide. Despite their major role in {{w|U.S. foreign policy}}, and in the general political structure of the globe, the American public often largely ignores them, and they rarely become a major political issue (apart from an occasional mention by {{w|Libertarian Party (United States)|Libertarian presidential candidates}}).So, essentially, the absence of foreign military bases within the U.S. is primarily because there aren't really any other countries in a position to place bases there. Ironically, although no battles in the traditional sense have been fought within the U.S. since the {{w|U.S. Civil War}} and the U.S. mainland has seen {{w|Mainland invasion of the United States|almost no military action}}, foreign air bases might have been useful on September 11, 2001. (The {{w|attack on Pearl Harbor}} in 1941 was 18 years before Hawaii became a U.S. state, but Hawaii was still a fundamental part of the United States as it was an incorporated territory.)There are, however, foreign troops stationed at some continental US military bases. For example, RAF (British Royal Air ) 39 Sqn and 361 Sqn at Creech Air Base in Nevada flying Reaper and Predator drones. But these are not foreign military bases, they are just guests.
|}

===Section Eleven===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why are my boobs itchy? ||It could be anything from dry skin to a rare life-threatening disease. Could also be related to pregnancy, PMS, or puberty. [http://www.just-health.net/Itchy-Breast.html Here's a thorough list] of possible causes and remedies.
|-
| Why are cigarettes legal? ||Despite the obvious detrimental affects nicotine has on health, it is, like caffeine and alcohol, more profitable to regulate than to ban, and is also subject to intense lobbying by tobacco companies to keep it legal. Substances like cocaine and other drugs are mainly illegal because of government attitudes disapproving of recreational drug use coupled with there being no powerful preexisting corporate lobby with a stake in making or keeping these drugs legal, and also, with some drugs (in the US, at least), due to more than a bit of racism (against Mexicans with regard to marijuana, or against Chinese for opium). Nicotine, however, which is the key ingredient in tobacco, is regulated and heavily taxed, bringing income for the government. This is one of the major arguments for legalizing other, currently-illegal drugs, at least the "softer" ones like marijuana, as, if they're legalized, they can be taxed and bring the government more money, and the government can provide an incentive for producers and sellers to keep their product safe and high-quality (by punishing those who mislabel their drugs or cut them with dangerous substances, while letting producers and sellers of safe, high-quality drugs operate without fear of arrest or prosecution).
|-
| Why are there ducks in my pool? ||Most likely, they're looking for a place to mate. Which means you'll soon have baby ducks in your pool. Most migratory birds are protected by wildlife laws, so you want to prevent them from moving into your pool in the first place. The [http://www.dfwwildlife.org/duck.html DFW Wildlife Coalition] has some tips.
|-
| Why is Jesus white? ||This is an ethnocentric viewpoint that varies throughout cultures. In African cultures he is portrayed as black. In short, whatever culture he is introduced to, those inhabitants will have him fit their own image.
|-
| Why is there liquid in my ear? ||[http://www.healthline.com/symptom/discharge-from-ear It's called otorrhea], and can be caused by infection, trauma, or changes in pressure. A common cause is [http://www.mayoclinic.org/diseases-conditions/swimmers-ear/basics/definition/con-20014723 Swimmer's ear], an infection of the outer ear canal. More seriously, it could be Cerebrospinal fluid. This can end up in your ears do to a puncture in the skulls membrane, often due to a collision/concussion. This is a very serious condition. Again, do not take (too much) medical advice from wiki.
|-
| Why do Q tips feel good? ||The inner ear contains [http://en.wikipedia.org/wiki/Erectile_tissue erectile tissue] (as does your inner nose which is why sneezing feels good) so you are massaging tissue which gets aroused upon stimulation.
|-
| Why do good people die? ||Everybody dies, no matter how good or bad they were. But sometimes if people are really bad they are made to die sooner. (But loved ones and ones who were known to make memorable or valuable contributions are mourned and revered more than a person who has left much pain to others as their legacy; we remember the good ones and so it hurts more.)
|-
| Why are ultrasounds important? ||Ultrasound scans provide a great deal of information about a fetus, thus increasing the chances of a healthy birth. They have many other medical uses.
|-
| Why are ultrasound machines expensive? ||As hospital equipment goes, ultrasound machines are actually a bargain. [http://www.costowl.com/healthcare/healthcare-ultrasound-machine-costs.html A new ultrasound machine] costs about $20,000-$75,000, depending on features. Comparable devices are much more expensive: The [http://info.blockimaging.com/bid/84432/CT-Scanner-Price-Guide CT scanner] runs $90,000-$250,000, while the [http://www.ehow.com/about_4731161_much-do-mri-machines-cost.html MRI machine] easily goes over a million.
|-
| Why is stealing wrong? ||Stealing is theft and it is illegal. Taking something that is not yours without permission or payment hurts the livelihood of other individuals as well as damages their trust in others.
|}

===Vertical Questions===
{| class ="wikitable"
|-
!style="width:20%;"|Question !! Possible answer
|-
| Why is there hell if god forgives? ||There is not a single answer to this question. The answer varies based on the religion and that religion's sect mixed with personal interpretations of that religions scripture and how a person decides to follow it. However the idea of what Hell will be like also varies. There is no one answer to this question, but the easiest explanation is that the individual did not pray hard enough, correctly, was not part of the right religion, and their forgiveness was contingent on something that the person either did not do or know to do (or say or think).
|-
| Why do iguanas die? ||All living things die, but iguanas may suffer from [http://www.anapsid.org/iguana/kidneyfailure.html kidney failure].
|-
| Why is GPS free? || GPS was originally developed by the U.S. military for its own use, not for commercial purposes. However, the government realized that free GPS would have a significant bonus for the economy and would prevent disasters like the {{w|Korean Air Lines Flight 007}} where a plane was shot down after accidentally entering Soviet airspace, and in 1983 President Reagan declared that the US would make GPS available to all. At one point, "{{w|selective availability}}" was used to degrade performance for civilian users, but since 2000 this has also been switched off.
|-
| Why are trees tall? ||Tall is a relative term, and Redwoods are famous for their height - among the tallest in the world. The reason for this is, in part [http://www.nps.gov/redw/faqs.htm climate, fog, rain, good soil, few predators, among others].
|-
|Why are there female Mr. Mimes? || {{w|Mr. Mime}} is a Pokémon introduced in the first generation of the games, and despite its name, it can be either of a male or female gender. As the Pokémon was introduced before the concept of [http://bulbapedia.bulbagarden.net/wiki/Gender gender in Pokémon games], it is likely that the people in charge of translating its Japanese name (Barrierd) did not take this into account during the process.
|-
| Why is there lava? ||{{w|Lava}} is magma (molten rock) which is at the Earth's surface. Magma in the Earth comes from the melting of rock due to rising heat from deeper within the planet. {{w|Earth's internal heat budget|This heat}} is about half radiogenic and half primordial (left over from the formation and differentiation of the Earth). Most of the crust and mantle of the Earth is solid rock, but in places (usually controlled by plate tectonics, but {{w|Hawaii hotspot|not always}}) where the heat is high enough the minerals with lowest melting point start to melt and then migrate upwards towards the surface. This melt collects in {{w|Magma chamber|magma chambers}}, in which the magma may start to cool and crystallize. Sometimes it will crystallize completely, becoming an underground solid body called a pluton. Other times melt will keep migrating upwards until it reaches the surface and erupts as lava, forming a {{w|volcano}} or undersea vent.
|-
| Why is YKK on all zippers? || {{w|YKK}} Group is the name of a large group of Japanese manufacturing companies, which among other things manufacture a lot of zippers. YKK zippers are also considered to be some of the best available, so a clothing maker including a YKK zipper would likely leave the YKK name on, instead of getting no branding or rebranding them.
|-
| Why is life so boring? ||It is up to an individual to find meaning and interest in life. Monotony, predictability and lack of physical and intellectual stimulation would lead to a feeling of boredom.
|-
| Why aren't there dinosaur ghosts? ||Ghosts are a supernatural phenomenon that have not been empirically proven to exist. Those who believe in ghosts implicitly believe in a soul (of which a ghost is a materialization of), and it is a commonly held belief by religious institutions and ghost-hunters that animals do not have souls and thus dinosaurs would not have any either.
|-
|Why is there no king in England? ||''At the time of publication, {{w|Elizabeth II}} was the Queen of England, and continued to be so for another decade, ending up having been so for over 70 years.''

In colloquial usage, any married couple reigning over a monarchy is known as the king and queen. For the past several hundred years, there has almost always been a queen in England, the sole exceptions being when the king has not had a wife. (Also, "England" is commonly used as the equivalent to "The United Kingdom", often incorrectly.) However, there is a distinction between being the Queen of England (that is to say, {{w|List of British monarchs|a monarch}} in her own right) and any {{w|queen consort|Queen ''Consort''}} of England (the woman married to, or who later marries, the man who has become its King).

Monarchies tend to strongly select for Kings (with or without consorts). At times of strife, very few {{w|Empress Matilda|'queen's}} enter the fray. Peaceful {{w|succession to the British throne}} has been for a long governed in England by {{w|male-preference cognatic primogeniture}} which disproportionately favours male descendents. And British laws and customs have been generally built around the presumption that the monarch would be a man, and that man would be married to a woman, [[223: Valentine's Day|comic 223]] be damned. The consort (wife) to the King may be popularly styled as "Queen <her name>", but would not normally be a functional title. If she survives her husband, {{w|Queen Elizabeth The Queen Mother|her continued use of the honorific}} does not exclude the successive monarch having (or being) a new queen.

Despite everything, throughout the {{w|Acts of Union 1707|current continuity of the modern British throne}} two women have begun to reign as Queen in their own right. It just so happens that these two have been two of the longest-reigning monarchs in world history, {{w|Queen Victoria}} and Queen Elizabeth II herself. Both of these have been influential and famed not just in 'England' but around the world, and this fact may add to people noting the rare but conspicuous lack of an 'English' king historically (despite five times as many actual Kings). This is especially true within the living memory of those who asked the questions in the comic, who may never have lived through the time prior to Elizabeth II.

The title of "{{w|king consort}}" exists, but has not been used. Instead Victoria and Elizabeth's respective consorts, {{w|Albert, Prince Consort|Albert}} and {{w|Prince Philip|Philip}}, were given alternate titles — Albert as {{w|Prince Consort}} and Philip as "{{w|British prince|Prince of the United Kingdom of Great Britain and Northern Ireland}}" (both commonly referred to as "Prince ..."). These titles being by gift of their own queen and spouse, though Albert was already formally a prince of {{w|Saxe-Coburg and Gotha}} whilst Philip had previously been prince of {{w|Danish royal family|Denmark}} and {{w|Greek royal family|Greece}} but had renounced both titles before marrying then-Princess Elizabeth. Earlier in history, various {{w|Mary II of England|co-ruling queens}}, and {{w|Elizabeth I|unmarried queens}} had also avoided any need for the "consort" title.

Much more recently, the system of male-preference {{w|Succession to the Crown Act 2013|was changed}} to ''absolute'' primogeniture, where (for all those born after 2011) males are no longer favoured over females, in the otherwise strict chronology of descent. Should the monarchy continue onwards without further social change, there are now likely to be far more actual Queens in the future (with or without consorts); however, already the first three members of Elizabeth II's senior line of descent are male: Prince Charles, as was, Elizabeth's eldest son; Prince William, Charles's eldest son; and Prince George, William's eldest child (being born in 2013).

It would still likely take a while (or unpredictable circumstances) before England has its next Queen in her own right and the question becomes relevent again. Since Elizabeth's death in September 2022, {{w|Charles III}} has indeed automatically become the King of England, and his current wife {{w|Camilla, Queen consort of the United Kingdom|Camilla}} is Queen Consort (but not formally the Queen of England). No further children are expected, nor would any normally change the immediate line of succession. The second child of William, {{w|Princess Charlotte of Cornwall and Cambridge|Princess Charlotte}} (born 2015), now rises accordingly to be third in line from Charles — behind William and her elder brother, at least until such time as George might himself eventually have an heir of his own, male or female.
|-
| Why do I feel dizzy? ||Balance is achieved from fluids in the inner-ear, but [http://en.wikipedia.org/wiki/Dizziness#Epidemiology dizziness] can have nearly a dozen causes.
|-
| Why are dogs afraid of fireworks? ||Loud noises can trigger their flight or fight responses when they are [http://www.cesarsway.com/dogbehavior/hyperdog/How-to-Keep-Your-Dog-Safe-and-Calm-During-Fireworks nervous].
|-
| Why are there weeks? || Weeks were originally important for religious reasons, primarily the requirement to observe a sabbath (day of rest) every seventh day. Today it is used to create a common schedule that doesn't change due to month length, much like the months divide a year to be able to schedule things like dentist appointments. Similarly, hours and minutes divide a day making it possible to create a schedule.
|}

==See also==
http://www.reddit.com/r/xkcd/comments/1l3na7/questions/cbvigrd, answers to all the questions.

==Transcript==
:[This strip is a rectangular word cloud, titled 'Questions found in Google autocomplete'. Embedded in the cloud are 5 single panels, with illustrated questions. These are described at the end. Questions are given in roughly columnar order. None of the questions have question marks.]

:Questions found in Google Autocomplete

:Why do whales jump
:Why are witches green
:Why are there mirrors above beds
:Why do I say uh
:Why is sea salt better
:Why are there trees in the middle of fields
:Why is there not a Pokemon MMO
:Why is there laughing in TV shows
:Why are there doors on the freeway
:Why are there so many svchost.exe running
:Why aren't there any countries in antarctica
:Why are there scary sounds in Minecraft
:Why is there kicking in my stomach
:Why are there two slashes after HTTP
:Why are there celebrities
:Why do snakes exist
:Why do oysters have pearls
:Why are ducks called ducks
:Why do they call it the clap
:Why are Kyle and Cartman friends
:Why is there an arraow on Aang's head
:Why are text messages blue
:Why are there mustaches on clothes
:Why are there mustaches on cars
:Why are there mustaches everywhere
:Why are there so many birds in Ohio
:Why is there so much rain in Ohio
:Why is Ohio weather so weird
:Why are there male and female bikes
:Why are there bridesmaids
:Why do dying people reach up
:Why aren't there varicose arteries
:Why are old Klingons different
:Why is programming so hard
:Why is there a 0 ohm resistor
:Why do Americans hate soccer
:Why do rhymes sound good
:Why do trees die
:Why is there no sound on CNN
:Why aren't Pokemon real
:Why aren't bullets sharp
:Why do dreams seem so real
:Why aren't there dinosaur ghosts
:Why do iguanas die
:Why do testicles move
:Why are there psychics
:Why are hats so expensive
:Why is there caffeine in my shampoo
:Why do your boobs hurt
:Why aren't economists rich
:Why do Americans call it soccer
:Why are my ears ringing
:Why are there so many Avengers
:Why are the Avengers fighting the X men
:Why is Wolverine not in the Avengers
:Why are there ants in my laptop
:Why is Earth tilted
:Why is space black
:Why is outer space so cold
:Why are there pyramids on the moon
:Why is NASA shutting down
:Why is there Hell if God forgives
:Why are there tiny spiders in my house
:Why do spiders come inside
:Why are there huge spiders in my house
:Why are there lots of spiders in my house
:Why are there spiders in my room
:Why are there so many spiders in my room
:Why do spider bites itch
:Why is dying so scary
:Why is there no GPS in laptops
:Why do knees click
:Why aren't there E grades
:Why is isolation bad
:Why do boys like me
:Why don't boys like me
:Why is there always a Java update
:Why are there red dots on my thighs
:Why is lying good
:Why is GPS free
:Why are trees tall
:Why are there slaves in the Bible
:Why do twins have different fingerprints
:Why are Americans afraid of dragons
:Why is there lava
:Why are there swarms of gnats
:Why is there phlegm
:Why are there so many crows in Rochester, MN
:Why is psychic weak to bug
:Why do children get cancer
:Why is Poseidon angry with Odysseus
:Why is there ice in space
:Why are there female Mr Mimes
:Why is there an owl in my backyard
:Why is there an owl outside my window
:Why is there an owl on the dollar bill
:Why do owls attack people
:Why are AK47s so expensive
:Why are there helicopters circling my house
:Why are there gods
:Why are there two Spocks
:Why is Mt Vesuvius there
:Why do they say T minus
:Why are there obelisks
:Why are wrestlers always wet
:Why are oceans becoming more acidic
:Why is Arwen dying
:Why aren't my quail laying eggs
:Why aren't my quail eggs hatching
:Why aren't there any foreign military bases in America
:Why is life so boring
:Why are my boobs itchy
:Why are cigarettes legal
:Why are there ducks in my pool
:Why is Jesus white
:Why is there liquid in my ear
:Why do Q tips feel good
:Why do good people die
:Why are ultrasounds important
:Why are ultrasound machines expensive
:Why is stealing wrong
:Why is YKK on all zippers
:Why is HTTPS crossed out in red
:Why is there a line through HTTPS
:Why is there a red line through HTTPS on Facebook
:Why is HTTPS important
:Why are there weeks
:Why do I feel dizzy
:Why are dogs afraid of fireworks
:Why is there no king in England

:[We see Cueball from the torso up, with arms outstretched.]
:Cueball: Why aren't my arms growing

:[Megan stands with a grey ghost on either side of her.]
:Megan: Why are there ghosts

:[Beret Guy stands, looking at a squirrel.]
:Beret Guy: Why are there squirrels

:[Cueball stands.]
:Cueball: Why is sex so important.

:[We see Ponytail from the torso up.]
:Ponytail: Why aren't there guns in Harry Potter

== References ==
<references/>

{{comic discussion}}

[[Category:Large drawings]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Beret Guy]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics sharing name|Questions]]
[[Category:Multiple Cueballs]]
[[Category:LOTR]]
[[Category:Pokémon]]
[[Category:Google Search]]
[[Category:Squirrels]]
[[Category:Animals]]
[[Category:Soccer]]
[[Category:Star Trek]]
[[Category:Weather]]
[[Category:Harry Potter]]
[[Category:Religion]]
[[Category:Sex]]
[[Category:Volcanoes]]
[[Category:Minecraft]]
[[Category:Ants]]
[[Category:Kids]]

2752: Salt Dome

2023-03-21T14:38:05Z

172.71.158.90: /* Explanation */ clarify further

{{comic
| number = 2752
| date = March 20, 2023
| title = Salt Dome
| image = salt_dome_2x.png
| imagesize = 422x338px
| noexpand = true
| titletext = The US uses hollowed-out salt domes to store the Strategic Petroleum Reserve, and non-hollowed-out ones to store the Strategic Salt Reserve.
}}

==Explanation==
{{incomplete|Created by STRATEGIC SALT SPREADER - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic refers to how downwards pressure in one area of the world can cause upwards pressure in another, causing {{w|salt domes}} to rise up.

In the comic, [[Beret Guy]] and [[Ponytail]] are sitting at a table and eating dinner, alongside [[Cueball]], who is presumably a {{w|geologist}}. Thus, when asked to "pass the salt," Cueball, with his extensive knowledge of the Earth's crust and its interactions with the surface world, is aware of this phenomenon, and as such is stomping on his chair in order to create downward pressure on the ground beneath. This apparently works exactly as intended, as a salt dome begins rising out of the floor and even begins to break through the dinner table. The caption humorously remarks that this is what will happen if you ask any geologist to "pass the salt," which conventionally means to simply hand a salt shaker or dispenser to another diner who cannot reach it. A salt shaker, presumably containing the salt intended to be passed, can be seen on their table.

Cueball mentions {{w|overburden pressure}}, a geological term referring to the pressure that outer layers of rock exert on inner layers. This is what usually causes the rising of salt domes, though Cueball's stomping on his chair would not produce sufficient overburden pressure to raise a salt dome.{{fact}} However this is exactly the kind of [[:Category:Strange powers of Beret Guy|Strange powers]] Beret Guy usually displays (similar power is shown in [[1388: Subduction License]]). So it is quite interesting that it is Cueball that has these kind of powers, especially with Beret Guy present at the table.

In the title text, the {{w|Strategic Petroleum Reserve (United States)|Strategic Petroleum Reserve}} is a United States government reserve of oil in case of emergencies. [[Randall]] observes the actually true fact that artificial caves within hollowed-out salt domes create the spaces for the government to store this oil. The joke in the title text is that Randall claims that salt domes, that are not yet hollow, are used to store the US salt reserve. Of course this could be seen as true, but this salt is not put there by humans, but by nature, and is thus not stored there by any government. Further, the use of the term "salt dome" in the title text plays on the ambiguity between geological {{w|Salt dome|salt domes}} and the {{w|monolithic dome}} structures commonly used to store reserves of road salt, which also are commonly referred to as "salt domes".

Ordinary salt is available in abundance throughout the U.S.[https://uwaterloo.ca/earth-sciences-museum/resources/detailed-rocks-and-minerals-articles/salt] so there is no need for national strategic salt reserves.{{fact}} However, the UK does maintain an Emergency Salt Reserve[https://www.gov.uk/government/publications/strategic-salt-protocol/national-emergency-salt-reserve-salt-protocol-note-for-local-highway-authorities-in-england], as part of a Strategic Salt Protocol[https://www.gov.uk/government/publications/strategic-salt-protocol], to ensure highways can be gritted during prolonged wintry weather, just as most communities regularly using salt on roads stockpile it for such purposes throughout the world.

==Transcript==
:[This comic is drawn on a gray background, with the segment beneath the floor in dark gray. This is to make the white part of the comic stand out as very white. In the comic Cueball, Beret Guy and Ponytail are dining at a long table, with Cueball and Ponytail far from each other at the either end of the table. Beret Guy sits close to Cueball, facing towards the reader, and he is quite far away from Ponytail. Beret Guy and Ponytail are sitting down in their chairs, Ponytail with her hands in her lap, Beret Guy with his arms on the table. Their chairs are quite high, neither of them are even close to reaching the floor with their feet. Cueball, on the other hand, is standing on his chair and is loudly stomping on the chair. This has caused the floor beneath the chairs legs to be dented slightly down. And a white column of salt has burst through the ground and is rising up under the table clearly bending the table up in the process, and the table surface is cracking up in several places. The white dome, the only white part of the image, is broader at the top than where it breaks through the floor, but widens out beneath the floor. The white salt has several small black spots on it, to indicate a rough surface. On the table there are three dining plates with food, a bowl and a plate with food, about to slide down the domed table surface, and two wine glasses, one of which has fallen over due to the deformation of the table. It has fallen over near Ponytail releasing the liquid out on the table, where it runs out over the side. Between Cueball and Beret Guy there stands a salt shaker, that could have been passed to Ponytail.]
:Cueball: Just a little more overburden pressure...
:Cueball: The dome is almost through the table...
:Cueball stomping: <big>''Stomp stomp''</big>

:[Caption below the panel:]
:Never ask a geologist to pass the salt.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Beret Guy]]
[[Category:Comics featuring Ponytail]]
[[Category:Geology]]
[[Category:Food]]

2749: Lymphocytes

2023-03-14T04:42:06Z

172.71.158.90: dvd+r explanation

{{comic
| number = 2749
| date = March 13, 2023
| title = Lymphocytes
| image = lymphocytes_2x.png
| imagesize = 651x733px
| noexpand = true
| titletext = It's very hard to detect, but recent studies have determined that when plasma B cells are producing antibodies, they go 'pew pew pew'
}}

==Explanation==
{{incomplete|Created by the WORLD'S SECOND COOLEST IMMUNOLOGIST - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

The human body contains many different types of immune cells.{{citation needed}} This comic is a list of lymphocytes, a specific type of immune cell that is found in lymph. As the comic goes on, in the style of many "informative" xkcd comics, the descriptions and names of the cells get more and more removed from reality. In fact, only one name and description is accurate, that being the plasma B cell description.

{| class="wikitable"
! Name !! Real Lymphocyte? !! Description !! Comment
|-
| Plasma B cells || Yes || Churn out antibodies || {{w|Plasma B cell}}
|-
| Naïve B cells || Yes || Try to stop pathogens by asking nicely || B cells that have not yet been exposed to an antigen
|-
| Memory B cells || Yes || Very quietly sing "memory" from ''Cats'' at all times || Long-lived B cells that can quickly respond to an antigen
|-
| {{w|Regulatory B cell}}s || Yes || Required by local ordinance || Suppress certain immune responses. Cells follow instructions from DNA, which might be considered to be local ordinances.
|-
| CD8+ T cells || Yes || Melee combat || Cytotoxic T cell
|-
| CD4+ T cells || Yes || Scream at other cells || Helper T Cell
|-
| Gamma-Delta T cells || Yes || Unknown / classified || T cells found in mucosa with different T-cell receptors than normal
|-
| CDRW+ T cells || No || Rewritable, 700MB || Here, the meaning of "CD" is switched from {{w|Cluster of Differentiation}} to {{w|Compact Disc}}.
|-
| DVD+R T cells || No || Different from DVD-R, though no one is sure how || {{w|DVD+R}} is a DVD format designed by HP Labs
|-
| Natural killer cells || Yes || Named by the world's coolest immunologist || Kills cells infected by intracellular pathogens and cancer cells
|-
| ILC1, ILC2, and ILC3 cells || Yes || Named by a significantly less cool immunologist || ?
|-
| D cells || No || Larger than C and AA cells, used in old flashlights || This is not a blood cell, but a parody of {{w|D battery|"D cell" batteries}}. Confusingly, biological cells called "D cells" or {{w|delta cell}}s do exist, but they are not lymphocytes.
|}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

{{comic discussion}}

2746: Launch Window

2023-03-07T18:32:38Z

172.71.158.90:

{{comic
| number = 2746
| date = March 6, 2023
| title = Launch Window
| image = launch_window_2x.png
| imagesize = 501x256px
| noexpand = true
| titletext = "Confirmed, we have to scrub." "Ugh, okay. I'll get the bucket and sponge."
}}

==Explanation==
{{incomplete|Created by a WINDEX-SCRUBBED LAUNCH WINDOW - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
A {{w|launch window}} is a brief period of time in which a spacecraft can be launched from Earth's surface such that the spacecraft can reach its destination with the minimal amount (or an amount lower than a threshold of acceptance) of energy expenditure.

This comic takes the concept of a "launch window" in a more literal direction, implying that they have an actual physical window that is only open at certain times, and through which the rocket presumably has to be launched. One character suggests moving the rocket outside in order to avoid issues that arise from dealing with the window. This immediately gets pushback by the other technicians who, in stereotypical behavior of shut-ins, don't want to bother leaving their comfortable computers. They complain the outside 'is so sunny', which ironically would normally indicate good conditions that would permit a launch. It also meets resistance because it would cause them to have to deal with bugs, presumably not of the technical type which might commonly prevent a launch, but more of the biological kind.

The title text continues the comic’s theme of taking aerospace terms literally, with a play on the two meanings of ''scrub''. Normally, in the context of a rocket launch, this would mean to cancel the launch, but here it apparently means that some cleaning job is required, possibly of the window in question (though how that would help them to launch the rocket through it is unclear), or possibly to deal with the aftermath of launching through the closed window.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Hairy can be seen sitting either side of a technical-looking double-sided console, with Hairy wearing a mike-and-headphones headset]
:Ponytail: The launch window will only be open for another 90 minutes.
:Ponytail: We may have to scrub.

:[Slightly expanded view where, left from Ponytail and Hairy, Cueball can also be seen, operating a similar but single-sided neighboring console with his back to Ponytail]
:Cueball: You know,
:Cueball: given all our issues with the launch window,

:[Cueball turns around, facing the others]
:Cueball: have we thought about moving the rocket outside?
:Ponytail: Ugh, no. It's so sunny out.
:Hairy: And there are bugs.

{{comic discussion}}

[[Category:Space]]
[[Category: Comics featuring Ponytail]]
[[Category: Comics featuring Cueball]]
[[Category: Comics featuring Hairy]]

2740: Square Packing

2023-02-20T22:00:38Z

172.71.158.90: /* Explanation */ bot creation notice

{{comic
| number = 2740
| date = February 20, 2023
| title = Square Packing
| image = square_packing_2x.png
| imagesize = 326x295px
| noexpand = true
| titletext = I also managed to improve the solution for n=1 to s<0.97, and with some upgrades I think I can hit 0.96.
}}

==Explanation==
{{incomplete|Created by a HYDRAULIC PRESS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

{{comic discussion}}

Talk:2736: Only Serifs

2023-02-11T22:29:41Z

172.71.158.90:

first two letters are "A" and "R" I think [[Special:Contributions/172.71.167.10|172.71.167.10]] 04:35, 11 February 2023 (UTC)Bumpf

It's AaBbCcDd. Most likely in Caslon, based on the uppercase A. [[Special:Contributions/172.68.174.149|172.68.174.149]] 04:54, 11 February 2023 (UTC)

So much for a hidden message. [[Special:Contributions/172.68.238.22|172.68.238.22]] 05:05, 11 February 2023 (UTC)

If we've come to this page for an explanation, we probably don't know what a "solum-serif font" is. update the transcript with something more widely known? [[Special:Contributions/172.69.65.224|172.69.65.224]] 05:42, 11 February 2023 (UTC)
:Agreed, enthusiastically! Someone trying to show off, Google doesn't even know what it means, it found ONE result, which is a font of curved corners someone made (when I put "solum-serif" in quotes, to not allow Google to just search one or the other). But while I was Googling someone fixed it before I could, LOL! Which is weird as it's past midnight here in the Eastern time zone. :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:56, 11 February 2023 (UTC)
:: Perhaps you haven't realised that nighttime for Americans is daytime for, um, somewhere around 80-90% of the world's population? [[User:Paddles|Paddles]] ([[User talk:Paddles|talk]]) 14:54, 11 February 2023 (UTC)

::I think that's probably because it was a joke. In fact the ridiculous of the notion of a "solum-serif" font is more or less the entirety of the joke of this comic. You're right, in the future we should make sure that these descriptions are devoid of humor.[[Special:Contributions/172.70.211.92|172.70.211.92]] 18:17, 11 February 2023 (UTC)

::For anyone who is confused, 'solum' (solus) is Latin for 'only', as opposed to 'sans' (from the Latin 'sine'), without. I suppose the joke is rather hard to get, though, since the top Google search results for 'solum' refer to soil. (Not my joke, by the way. Also, first ever comment - hope I've done this right.) [[User:CryptekCathekh|CryptekCathekh]] ([[User talk:CryptekCathekh|talk]]) 21:21, 11 February 2023 (UTC)

There was a whole thing on Wikipedia about formatting the f symbol for an arbitrary function. One camp held that f is just f, it always is and always was and if you italicize f in a san-serif font, you get an oblique ''f'' but if you italicize f in a serif font, you get a proper italic version, which I'm not sure how to display here. The italic f resembles ƒ, a character called the "hooked f," which is technically an oblique f with a descender ("hook"). That symbol has been used for florins, but sometimes it is also used to imitate the italic f to represent functions, because it has the descender in all environments. But Wikipedia uses a san-serif script, while most mathematical literature uses a serif script. However, it renders expressions in LaTeX with serif fonts and therefore these equations get an f with a descender. So some people were arguing that given this environment, the ƒ character was practically superior, even if it was conceptually wrong, because it most closely resembled the formatted LaTeX expressions. And on and on with the back and forth. I'm glad they eventually settled on just using f for f, like they use g for g and h for h, but still, it was amusingly nitpicky. [[Special:Contributions/172.70.100.50|172.70.100.50]] 07:58, 11 February 2023 (UTC)
:What you listed as resembling italic f looks on my system like ⨍. There are lots of fun variations (some unrelated, just similar looking): ∫⨎ʄ∮∬∰⨏ƒʆᶘᔑ [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 08:48, 11 February 2023 (UTC)

The title text teases the idea of a font made by adding the Times New Roman serifs to Comic Sans, and now I actually want to see such a cursed font. [[Special:Contributions/108.162.241.237|108.162.241.237]] 11:03, 11 February 2023 (UTC)

I think Caslon is correct:
[https://ibb.co/J2WhP1g Caslon] [https://ibb.co/MG77JMX Overlay] [https://ibb.co/3yQtqbN Low Opacity Overlay]
via [http://www.identifont.com/identify?58+.+5J+1JU+3YB+3RZ+35YX+94+JIA+58C+97+22X+8R8+1JY+2Z3A+6ZR+3Q+5BU+9J+1L0+76P+8Z+1QN+7UF+DG+5QE+J+JPK+8C+99+PAE+2AA6+2ZI+8X+8W+8J+1KS+JI6+2Z36+79+8E+53K+2E+1KI+8N+7VS+7S+2C6+1U6+8A+8R0+8F+3WO+2ZGL+1LA+7G+1QY+8B+A0 questions] in Identifont. If someone can add these to the wiki, please do. [[User:DragonDave|DragonDave]] ([[User talk:DragonDave|talk]]) 12:55 11 February 2023 (UTC)

I wonder if this is related to the US State Department dropping Times Roman in favor of Calibri, under the argument that the latter is easier to read. --[[Special:Contributions/172.70.114.198|172.70.114.198]] 13:47, 11 February 2023 (UTC)

I call these fonts seul serif, keeping with the theme of using French terminology. [[Special:Contributions/172.71.147.59|172.71.147.59]] 16:30, 11 February 2023 (UTC)

A free, existing example of [http://www.fontgrill.com/fonts/free/comic-serif/comic-serif.php Comic Serif].
[[Special:Contributions/172.70.214.242|172.70.214.242]] 16:43, 11 February 2023 (UTC)

^ TBH Comic Serif doesn't look half bad, if only it had a consistent baseline [[Special:Contributions/198.41.231.179|198.41.231.179]] 17:01, 11 February 2023 (UTC)

This comic reminds me of something I once actually did as a child: I once wrote a notepad full of game ideas and story concepts but wanted to keep them a secret; so I created my own "cipher" font where any straight lines in letters were removed, leaving only the curved lines. However, because some letters such as c and d would look similar without the straight lines, I gave some letters curved "serifs", which would be retained in my "font". --Jinji@donphan.social 20:32, 11 February 2023 (UTC)

I'm most instances where the word "font" is used, the correct word is "typeface". "Times Roman" is a typeface whereas "Times Roman bold" is a font. -Jez [[Special:Contributions/172.70.93.42|172.70.93.42]] 20:56, 11 February 2023 (UTC)

That can't POSSIBLY be the right link under the word "events". We have an entire category of "my hobby"/"Cueball getting kicked out of events" comics and that isn't any of them. [[Special:Contributions/172.71.158.90|172.71.158.90]] 22:29, 11 February 2023 (UTC)

Talk:2719: Hydrogen Isotopes

2023-01-03T08:06:13Z

172.71.158.90: Minimum neutronium

This shows as a 404 on xkcd.com but in my RSS feed i can see the comic
: Works for me. [[Special:Contributions/172.69.34.9|172.69.34.9]] 02:25, 3 January 2023 (UTC)
::works for me now too but it didnt before
::: It works on m.xkcd.com and on the homepage of xckd, but the direct link gives me a 404. Various services such as the Wayback Machine show it as loading though. Could be a bad cache on some service. [[Special:Contributions/162.158.63.86|162.158.63.86]] 02:37, 3 January 2023 (UTC)

Could someone add an explanation of Nydnonen? I don't get it and it's google proof [[Special:Contributions/172.71.210.209|172.71.210.209]] 05:04, 3 January 2023 (UTC)Benzodiakanine
: Nothing. Was hopeful about {{w|List of Greek and Latin roots in English/N}} but nope. Tried stemming on all the Wiktionaries too. [[Special:Contributions/172.71.158.91|172.71.158.91]] 05:28, 3 January 2023 (UTC)
: Kudos to whomever figured it out, lol! [[Special:Contributions/172.71.158.231|172.71.158.231]] 08:02, 3 January 2023 (UTC)

Are these to scale? I recently read that the Helium is smaller in terms of measured atomic radius than the Hydrogen. Possibly this is true of Deuterium as well? [[Special:Contributions/172.70.85.45|172.70.85.45]] 06:50, 3 January 2023 (UTC)
:They are almost the same size but it depends on temperature: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.200800063 [[Special:Contributions/162.158.90.153|162.158.90.153]] 08:00, 3 January 2023 (UTC)

Is "oops all neutrons" distinct from Neutronium, which is also all neutrons? [[Special:Contributions/172.70.100.131|172.70.100.131]] 07:38, 3 January 2023 (UTC)
:Neutronium is ultra-dense and bound by gravity, with a minumum of about 1.2x1058 neutrons in a 40 kilometer diameter sphere. [[Special:Contributions/162.158.90.153|162.158.90.153]] 08:00, 3 January 2023 (UTC)

Talk:2716: Game Night Ordering

2022-12-27T05:33:24Z

172.71.158.90: r

Should we create a category for comics about game night? It can contain at least this and https://xkcd.com/2486/. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 22:32, 26 December 2022 (UTC)
:I'm not going to oppose it, but keep in mind that it would overlap with [[:Category:Board games]]. --[[Special:Contributions/172.70.178.48|172.70.178.48]] 22:50, 26 December 2022 (UTC)
::We absolutely need a general [[:Category:Games]] because we have e.g. roleplaying games under Board games. Does anyone know how to edit in a superclass category? The last time I ever did anything sophisticated with Mediawiki categories was like 2008. [[Special:Contributions/172.71.154.38|172.71.154.38]] 23:39, 26 December 2022 (UTC)

The rules would seem to be similar to the card game Cheat (or, at least, the version we used to play). Using an ordinary wholly-dealt pack of cards (for any number of players), it was a "blind bid and discard" game whereby each player has to state "<one to four> <card value>s" (or more than four, with merged packs, each of which might be whole or partial) was going on the discard pile, such that the card value was within one (-1, =, +1, with standard wrapping ...>10>J>Q>K>A>2>...) of the prior stated discard. And ''something'' had to be discarded, whether or not the player could technically do so. The forfeit for not continuing play ''or'' challenging, within a generally acceptable thinking time, was the same for either being successfully challenged (you stated you put down two threes, but on checking the dump pile you discarded two sevens) or for the person who wrongly challenged... to pick up the discard pile and be so much further from the ultimate goal of ending up with zero cards (the first the winner, optionally the second, third, etc to do so to earn further ranks just for the sake of continuing/last-ranking the one who ended up as the only one still with cards). - I presume this game just applies the same penalty (buying the food) to anyone who dithers over whether to challenge anything or 'play their own hand'. There doesn't need to be anything more complicated to it. Unless there's also an 'empty hand' winning state, that I can't discern from the brief discourse given in the comic. But it seems more geared to finding the eventual 'loser' (the one who pays up) than any single beneficiary. [[Special:Contributions/162.158.34.230|162.158.34.230]] 23:17, 26 December 2022 (UTC)
:If there is a link for Cheat you should add it. [[Special:Contributions/172.70.206.150|172.70.206.150]] 23:20, 26 December 2022 (UTC)
::Well, I think there's far too many variations... Though, surprisingly, it does look like {{w|Cheat (game)}} actually describes ''my'' learnt version quite well. But I don't think I see any 'time out' penalties mentioned there, and that was the key part of the "play or challenge, don't dither, or you lose" bit to my (sorry, rather long) description above... [[Special:Contributions/162.158.34.230|162.158.34.230]] 23:27, 26 December 2022 (UTC)
::: Never apologize for verbosity on talk; devote that energy to brevity on main. [[Special:Contributions/172.71.154.156|172.71.154.156]] 23:41, 26 December 2022 (UTC)
::::We need a quotes page. [[Special:Contributions/172.70.206.150|172.70.206.150]] 02:13, 27 December 2022 (UTC)
::(Plus there's the inverted "loser finder" rather than "winner finder" primary nature of the gameplay. It makes the methodology of play a bit too different.) [[Special:Contributions/162.158.34.231|162.158.34.231]] 23:30, 26 December 2022 (UTC)

We should make a payment service for providing crowdfunded rewards to the best contributors to explanations. [[Special:Contributions/172.69.134.16|172.69.134.16]] 01:16, 27 December 2022 (UTC)
:I love this idea but it would conflict with the ethos of completely anonymized contributions here. Unless someone can propose how it might not? I mean, if there was some way to include an SHA-256 identity-confirming hash in edit summaries? Would keeping track of them in terms of surviving text after, say, a month be a decent leaderboard scoring? [[Special:Contributions/172.69.33.84|172.69.33.84]] 01:42, 27 December 2022 (UTC)
::My meager anonymous IP contributions to explanations have been completely dwarfed by my attempts to revert vandalism on the official main page leaderboard, but is that a good or a bad thing? The idea needs to be carefully considered. I would absolutely kick in $25 to support other explainers, but I would need some assurance that the system couldn't be gamed by, e.g. paraphrasers, which I'm not sure is even possible. [[User:Liv2splain|Liv2splain]] ([[User talk:Liv2splain|talk]]) 01:54, 27 December 2022 (UTC)
::: It's easy to hijack someone else's contributions with paraphrasing and refactoring. It's a dead end. [[Special:Contributions/162.158.166.230|162.158.166.230]] 02:05, 27 December 2022 (UTC)
:::: True, but is there a way to avoid the cheating? [[Special:Contributions/172.70.214.253|172.70.214.253]] 02:28, 27 December 2022 (UTC)
::: I would probably also kick in $25 if the system was well-designed, even if it was vulnerable to paraphrasing or refactoring, as long as someone could call out such flaws as they happened. Never let the perfect be the enemy of the good. [[Special:Contributions/162.158.166.173|162.158.166.173]] 02:39, 27 December 2022 (UTC)
:::: The operationalism issue is how to set up actual payment flows while still allowing criticisms of them. The cost to reverse a payment is too high compared to the relative number of payments you might want to reverse. [[Special:Contributions/172.71.158.90|172.71.158.90]] 05:33, 27 December 2022 (UTC)

Is this about cryptocurrency scams? [[Special:Contributions/172.70.211.135|172.70.211.135]] 02:50, 27 December 2022 (UTC)
:I want to [https://www.youtube.com/watch?v=wlMwc1c0HRQ&ab_channel=NickKing subscribe to your newsletter.] [[Special:Contributions/172.70.206.92|172.70.206.92]] 05:20, 27 December 2022 (UTC)

Talk:2713: Data Point

2022-12-22T03:07:51Z

172.71.158.90: Further

My theory: Randall got some interesting patterns drawing stars for the previous [[Gravity]] game, and wanted to show us how cool this one looks. [[Special:Contributions/172.69.134.130|172.69.134.130]] 10:53, 20 December 2022 (UTC)

Kudos to whomever used "datum" in its correct singular form. And also a kudo to the same person for their use of "data" correctly. [[Special:Contributions/172.70.179.3|172.70.179.3]] 12:27, 20 December 2022 (UTC)

: Anti-kudos for neglecting the etymology of kudos, ancient Greek κῦδος. In spite of ending in "s" it's a singular noun that means praise. Would a singular kudo be a pray or a prey? [[Special:Contributions/172.70.134.94|172.70.134.94]] 13:14, 20 December 2022 (UTC)
::The irony is sweet as a molass. [[Special:Contributions/162.158.78.27|162.158.78.27]] 18:11, 20 December 2022 (UTC)
:::This reminds me of a “dad joke” my mom would make every time we had molasses out on the dining table: she would inevitably, at some point, ask me to “pass the lasses.” And I would follow the script, and say, “don’t you mean MOlasses?” To which she would reply, in her best (meaning: awful) fake southern drawl, “hows ken it be MOlasses, whens I ain’t had none yet.”[[User:John|John]] ([[User talk:John|talk]]) 05:25, 21 December 2022 (UTC)
::::Molasses are one of the most irony foods they is. I have a molass to increase my iron all the time![[Special:Contributions/172.71.254.26|172.71.254.26]] 10:07, 21 December 2022 (UTC)

In the business of quality engineering it's all too common for the lab to be asked to neglect "bad" data points. The method is known as "Test until good." -- "Aha! You finally got one data point that says the stuff's okay. Ship it!" [[Special:Contributions/172.70.134.94|172.70.134.94]] 13:14, 20 December 2022 (UTC)

This comic finally explains the reason for the diffraction spikes on the stars in JWST images.

to be fair, there are certain data points which are mainly important in comparison to widely understood baselines, not to other data points in the actual test. things like fusion-energy-gain numbers, rocket ISP, nuclear warhead yield, etc. For those types of results, one valid data point that breaks the previous record is all that really matters. [[Special:Contributions/172.70.126.232|172.70.126.232]] 01:32, 21 December 2022 (UTC)

Isn't there a TIE fighter in the center of the picture? --[[Special:Contributions/162.158.129.80|162.158.129.80]] 11:50, 21 December 2022 (UTC)
:The usual convention is that whiskers around a solitary point are standard deviations (68% confidence intervals) but if they have perpendicular caps they're two standard deviations (95% confidence), although I am more than a little concerned I can't easily confirm this which I thought was common knowledge. The convention for box-and-whiskers plots are different, where the whiskers are 95% confidence intervals whether they have caps or not, and the boxes are two quartiles (50% confidence intervals), and a sole designation inside the box, by notches, or by the shape of the box represents the arithmetic mean (the median necessarily always being at the center of the box, which is often designated with a single perpendicular line.) [[Special:Contributions/172.71.158.230|172.71.158.230]] 03:03, 22 December 2022 (UTC)

2713: Data Point

2022-12-20T09:59:30Z

172.71.158.90: /* Transcript */ remerge

{{comic
| number = 2713
| date = December 19, 2022
| title = Data Point
| image = data_point_2x.png
| imagesize = 315x409px
| noexpand = true
| titletext = In general you should only include your single best data point in the paper. The rest of the data can go in the supplementary materials.
}}

==Explanation==
{{incomplete|Created by a REALLY COOL DATA POINT. Do NOT delete this tag too soon.}}

When scientific measurements are made, the conclusions are almost always based on many data points observed in relation to each other. The comic jokes that a single data point can somehow be of sufficient interest in isolation that the other data may be disregarded. In reality, a single datum can almost never represent what the information in the related data taken together indicate.

In this case the data point looks like a {{w|TIE fighter}} flying at you from the direction of the Sun. This is so cool that the entire focus of the scientific paper should be on this figure alone, as stated in the caption. [[Randall]] suggests this is a "science power move." (This is very similar to the [[:Category:Science tip|science tips]] in previous comics).

This is most likely intended as factitious satire, because the purpose of a chart or graph figure is to present multiple data which would be less clear than tabular or textual data, so there is never any reason to devote a figure to a single datum, regardless of its importance. It is could be a joke about papers which only highlight particularly interesting or significant data without including the background measurements or similar mundane information necessary to fully understand or reproduce the findings. While there are [https://www.aje.com/en/arc/data-not-shown-4-reasons-omit-figure-or-table/ accepted reasons for this practice,] it can be annoying when trying to follow an otherwise useful procedure or comparing aspects of the results the authors did not anticipate.

The title text suggests relegating all the other data to supplementary materials, presumably to avoid detracting from the single "cool" datum.

==Transcript==

:[A graph is shown. There are regularly spaced labels along both axes. In the center there is a single data point with short symmetrical vertical error bars. The graph is dominated by a round white center behind the point from where brilliant white lines emanate out radially in all directions, filling most of the background area, and looking like a star or the sun. Beneath the graph there are two lines of unreadable caption text to the left, next to a rectangular legend box on the right with one dot, indication the data point, and a label. Above the graph it is titled:]

:Figure 2.

:[Caption beneath the panel:]
:Science power move: When one of your data points is really cool, devote a whole figure to it.

{{comic discussion}}

[[Category:Science]]
[[Category:Scientific research]]

2708: Mystery Asterisk Destination

2022-12-09T02:46:52Z

172.71.158.90: /* Explanation */ conform

{{comic
| number = 2708
| date = December 7, 2022
| title = Mystery Asterisk Destination
| image = mystery_asterisk_destination_2x.png
| imagesize = 288x248px
| noexpand = true
| titletext = If you ever see the † dagger symbol with no unmatched footnote, it means the writer is saying the phrase while threatening you with a dagger.
}}

==Explanation==
{{incomplete|Created by a BOT.* Do NOT delete this tag too soon.†}}

This comic is a reference to the use of asterisks and other symbols for footnotes or endnotes. It jokes that when an asterisk appears after a word without a corresponding footnote, it refers to this comic. This may provide closure for readers, similarly in spirit to [[391: Anti-Mindvirus]], and opposite to the unmatched parenthesis of [[859: (]].

An unpaired asterisk or dagger often does not refer to a footnote, and thus does not constitute a mystery. Examples include programming languages and mathematical expressions using asterisks such as for the multiplication operator, or dates of birth and death, which are sometimes indicated with an asterisk or dagger respectively.

The title text claims that unmatched instances of † (a dagger; a symbol for a secondary footnote) are threats being made by the author to the reader with a physical dagger. As of this writing, it states "If you ever see the † dagger symbol with no '''''un'''''matched footnote...", forming a double negative. This is likely a typo intended as "the dagger symbol with no matching footnote."

==Transcript==
:[A blank panel with text at the bottom.]
:'''*'''Whenever you see a mystery asterisk that doesn't have a matching footnote, it points here.

{{comic discussion}}

2708: Mystery Asterisk Destination

2022-12-09T02:46:02Z

172.71.158.90: /* Explanation */ plural

{{comic
| number = 2708
| date = December 7, 2022
| title = Mystery Asterisk Destination
| image = mystery_asterisk_destination_2x.png
| imagesize = 288x248px
| noexpand = true
| titletext = If you ever see the † dagger symbol with no unmatched footnote, it means the writer is saying the phrase while threatening you with a dagger.
}}

==Explanation==
{{incomplete|Created by a BOT.* Do NOT delete this tag too soon.†}}

This comic is a reference to the use of asterisks and other symbols for footnotes or endnotes. It jokes that when an asterisk appears after a word without a corresponding footnote, it refers to this comic. This may provide closure for readers, similarly in spirit to [[391: Anti-Mindvirus]], and opposite to the unmatched parenthesis of [[859: (]].

An unpaired asterisk or dagger often does not refer to a footnote, and thus does not constitute a mystery. Examples include programming languages and mathematical expressions using asterisks such as for the multiplication operator, or dates of birth and death, which are sometimes indicated with an asterisk or dagger respectively.

The title text claims that unmatched instances of † (a dagger; a symbol for a secondary footnote) are threats being made by the author to the reader with a physical dagger. As of this writing, it states "If you ever see the † dagger symbol with no '''''un'''''matched footnote...", forming a double negative. This is likely a typo intended as "a dagger symbol with no matching footnote."

==Transcript==
:[A blank panel with text at the bottom.]
:'''*'''Whenever you see a mystery asterisk that doesn't have a matching footnote, it points here.

{{comic discussion}}

2699: Feature Comparison

2022-11-19T03:27:45Z

172.71.158.90: /* Explanation */ partial revert self: only the last sentence was particularly puerile

{{comic
| number = 2699
| date = November 16, 2022
| title = Feature Comparison
| image = feature_comparison_v2.png
| imagesize =
| noexpand = true
| titletext = Below the Web, and the Dark Web, a shadowy parallel world of Cybiko users trade messages on the Translucent Neon Plastic Web.
}}

==Explanation==
{{incomplete|Created by a MULTIHOMED MESH NODE. Do NOT delete this tag too soon.}}

This comic compares different remote communication services, including the relatively well-known {{w|Twitter}}, {{w|Discord}}, {{w|Mastodon (software)|Mastodon}}, {{w|Facebook}} (FB), {{w|Slack (software)|Slack}}, {{w|Signal (software)|Signal}}, {{w|Internet Relay Chat}} (IRC), {{w|Tumblr}}, {{w|Reddit}}, and {{w|SMS}} mobile telephone text messages. It also includes the less well-known {{w|Cybiko}}® wireless handheld computer for teens. For each of these, it purports to indicate which of various features they support. The comic illustrates how feature comparison charts/infographics can be abused by sellers who are trying to make their products look better than they really are, compared to their main competitors. The comic was likely inspired by the recent news coverage of Twitter's purchase by {{w|Elon Musk}}, and the subsequent mass firings and resignation of its staff, causing many users to start looking for alternatives.

The Cybiko was a handheld computer designed for teens and released in 2000, which featured its own two-way radio text messaging capabilities along with built-in games and a music player. Additional information about it is available at [http://cultureandcommunication.org/deadmedia/index.php/Cybiko the Dead Media Archive], as the device has not been manufactured since 2003. The chart suggests that the Cybiko has an advantage over all of the other listed communication services, as it is capable of all eight of the table's listed features listed, with none of the others being close. Purchasing a Cybiko or finding friends who own one can be its own challenge, as device was discontinued nearly 20 years ago. Additionally, the Cybiko is a ''device'' rather than a ''service''; a more fair comparison would be to a modern {{w|smartphone}}, which can provide most of these features via multiple apps, including those apps written especially for such rival services.

The features compared are {{w|Private message|direct messaging}}, {{w|group chat}}s, {{w|file transfer}}, built-in {{w|video game|games}}, instances of the software run by individual users instead of the corporation producing it, lack of a {{w|Server (computing)|central server}} requirement, {{w|mesh networking}}, and wireless message delivery without an active internet connection.

Mesh networking is a form of connectivity that reduces or removes the need for a centralized server or predefined gateways to a communications 'backbone'. Nodes communicate directly with any nodes that happen to be contactable, and from there may connect through to whatever nodes are in mutual contact, or to be found further afield, either in real-time or asynchronously. The Cybiko has this ability, as well as wireless message delivery because it communicates directly to other devices via radio, hence the ability to operate without any internet connectivity at all. There are several {{w|Comparison of software and protocols for distributed social networking|ongoing projects for distributed social networking}}, but all of these additionally require a hardware layer to provide signalling via their respective protocols. The Cybiko provides such via its decentralized radio capabilities.

The comic, purposefully, does not mention the downsides of the Cybiko, that being purchasing and finding friends who own one can be its own challenge, as it was discontinued nearly 20 years ago. Additionally, the comparison can be considered apples to oranges, since Cybiko is a ''device'' rather than a ''service''; a fairer comparison would be to a modern {{w|smartphone}}, which can provide most of these features via multiple apps, including ones written especially for such rival services. Even ignoring the above, some of the Cybiko's "advantages" come with their own drawbacks: while not requiring a central server nor the Internet, for example, is touted as a plus, the Cybiko instead relies on having other devices in proximity to relay messages, meaning unless the person you are sending to is nearby it will not function, which is not an issue of any of the other options.

This comic contains several errors. Mastodon doesn't require a central server, or support file transfer. Discord does not provide for user-run instances itself, only user-moderated and administrated instances. (There are two third party Discord server implementations, but it is unclear whether those could be counted as run by users.) Slack does not provide for user-run instances itself. Reddit does not provide for user-run instances at all, only user moderation and administration. IRC does require at least one central server,[https://www.rfc-editor.org/rfc/rfc1459.html] and relegates file transfer support to the domain of client extensions. Signal is heavily used in user-run instances via a diverse ecosystem of code forks; many of these don't require a central server, a couple use mesh networking. Reddit occasionally does have built-in games. Finally, Tumblr and SMS both have a form of group chats. An earlier version of the comic suggesting that Mastodon has no user-run instances was corrected by [[Randall]] shortly after publication of the original.

The title text refers to the translucent plastic covers that were popular in the late 1990s and early 200xs.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[A table with checkmarks to indicate which features various messaging services have. Each column is labeled with a service name and its logo beneath, except that for the last column, the device's longer name is written higher than all the other services' names, with an arrow pointing to a drawing of the device below it.]

{| class="wikitable"
|-
!
! Twitter
! Discord
! Mastodon
! FB
! Slack
! Signal
! IRC
! Tumblr
! Reddit
! SMS
! Cybiko® wireless handheld computer for teens (2000)
|-
! Direct messages
| ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓
|-
! Group chats
| ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || || ✓ || || ✓
|-
! File transfer
| || ✓ || ✓ || ✓ || ✓ || ✓ || ✓ || || ✓ || || ✓
|-
! Built-in games
| || ✓ || || ✓ || || || || || || || ✓
|-
! User-run instances
| || ✓ || ✓ || || ✓ || || ✓ || || ✓ || || ✓
|-
! Doesn't require central server
| || || || || || || ✓ || || || || ✓
|-
! Mesh networking
| || || || || || || || || || || ✓
|-
! Wireless message delivery works without internet
| || || || || || || || || || ✓ || ✓
|-
|}

{{comic discussion}}
[[Category:Charts]]
[[Category:Social networking]]

Talk:2699: Feature Comparison

2022-11-18T18:05:12Z

172.71.158.90: /* Proposal */ move more comments

The image has changed. Now Mastodon includes USER-RUN INSTANCES (though I believe it should also have a check next to DOESN'T REQUIRE CENTRAL SERVER).

I tried googling "wikipedia feature comparison chart". Instead of finding a page explaining how these charts work, I got a chart comparing different wiki softwares. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 23:22, 16 November 2022 (UTC)

Of course, it wouldn't be hard to make apps on smartphones support mesh networks ... however, the manufacturers and app developers prefer to work hard to make sure they don't work without being connected to internet and serving advertisement. [https://en.wikipedia.org/wiki/Wi-Fi_Direct Although ...] -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 00:25, 17 November 2022 (UTC)
:Actually, nearly all smartphones use radio chipsets running proprietary firmware with little to no mesh support; WiFi Direct depends upon protocol support from these chipsets, & specifically precludes relaying from device-to-device-to-device in a "decentralized mesh" fashion. DD-WRT & OpenWRT protocols support this kind of wireless decentralized mesh, but are not supported by the radio firmware present on consumer smartphones. Devices supporting these wireless mesh protocols do exist, but a lack of other nearby devices supporting those protocols, precludes relayed communication over multiple until such devices are deployed throughout the distance between a sender & recipient. In the US, there's only a couple bands allocated by the FCC which permit ciphered digital transmissions without a broadcast license, & the lineup of cellular handsets featuring radios for these bands can be counted on a few fingers.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 19:55, 17 November 2022 (UTC)

There seems to be a lot of wrongness about this matrix. Besides that mastodon instances can be run by user (which is fixed):
* Mastodon does not support file transfer. You can only upload images, and ''not'' even all image formats—webp is not supported. Some other ActivityPub servers support file upload, but then it's not Mastodon.
* IRC also doesn't support file transfer afaik.
* Mastodon and SMS don't require a central server
* Discord, Reddit, and Slack doesn't have user-run instances
* Discord doesn't have builtin games last time I checked. The games are by the bots,

I don't know about Slack, but pretty much all of Discord and Reddit is user-run/moderated instances.
:That slash is doing a lot of work there. [[Special:Contributions/172.69.34.31|172.69.34.31]] 06:57, 17 November 2022 (UTC)
:Your definition for "instance" must be very different from mine then. For me, "instance" refer to the server software's instance; that is, the user must be able to run the server software on their own to qualify this. If you consider subreddits and discord chat rooms (I refuse to call them "servers", because that's not what they are) as "user-run instances", then so are Facebook groups, right? Those are not instances; they're just communities or groups moderated by some selected people. --[[Special:Contributions/172.71.215.3|172.71.215.3]] 12:55, 17 November 2022 (UTC)
:webp support was added in Mastodon 4.0. [[Special:Contributions/162.158.222.124|162.158.222.124]] 08:38, 18 November 2022 (UTC)

"IRC itself is a teleconferencing system, which (through the use of the client-server model) is well-suited to running on many machines in a distributed fashion. A typical setup involves a single process '''(the server) forming a central point''' for clients (or other servers) to connect to, performing the required message delivery/multiplexing and other functions." – J. Oikarinen, D. Reed; Internet Relay Chat Protocol; RFC 1459; May 1993. Emphasis added. [[Special:Contributions/172.71.154.158|172.71.154.158]] 01:45, 17 November 2022 (UTC)

Notably, Mastodon ''eschews'' file transfer - audio specifically - for fear of enabling piracy (issue #7495). Tumblr would have a more comprehensive version of file transfer.
[[Special:Contributions/172.71.146.136|172.71.146.136]] 03:17, 17 November 2022 (UTC)

IRC has (X)DCC for File Transfers and for it's centralisation it depends on the deployment, the original network that became EFNet (Eris-Free Network) doesn't have a central server, but things like Libera and OFTC have centralised services for authentication and servers maintained by only one organisation. Btw for games on the fediverse (which Mastodon is part of) Misskey includes some, sadly they're centralised. [[User:Lanodan|Lanodan]] ([[User talk:Lanodan|talk]]) 03:40, 17 November 2022 (UTC)

Tumblr does have group chats. They're publicly viewable by anyone, but only people in the group can send messages, so I think they still count as group chats.

It appears we are all having a [[386]] moment watching Randall finally be wrong about something. How dare he?! [[Special:Contributions/172.70.111.30|172.70.111.30]] 05:37, 17 November 2022 (UTC)
: Nobody wants to put this train wreck into the explanation, but someone has to. I'm guessing we're waiting for further corrections just in case.
[[Special:Contributions/172.69.34.31|ki172.69.34.31]] 06:57, 17 November 2022 (UTC)

Discord did add games recently: https://discord.com/blog/server-activities-games-voice-watch-together
[[User:Spenc|Spenc]] ([[User talk:Spenc|talk]]) 07:28, 17 November 2022 (UTC)

He also just left out Matrix entirely, y'know I'm starting to think this isn't a serious comparison. --[[Special:Contributions/172.70.250.193|172.70.250.193]] 07:42, 17 November 2022 (UTC)
: He forgot to include humans, too, which support all of the features listed. [[Special:Contributions/141.101.99.12|141.101.99.12]] 10:23, 18 November 2022 (UTC)

Not sure what built-in would mean, but Slack has plenty of games you can install on it as an admin (Similar to Discord) [[Special:Contributions/172.70.162.223|172.70.162.223]] 09:52, 17 November 2022 (UTC)

Also on April fool's days Tumblr occasionally have some sort of built-in game [[Special:Contributions/172.70.162.46|172.70.162.46]] 09:54, 17 November 2022 (UTC)
:xkcd has those too :p --[[Special:Contributions/172.71.215.3|172.71.215.3]] 12:55, 17 November 2022 (UTC)

I'm wondering if we shouldn't include in the explanation, besides (on instead of) the link to {{Wikipedia|Mesh networking}}, also a link to {{Wikipedia|Comparison of software and protocols for distributed social networking}}. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 10:34, 17 November 2022 (UTC)

I can't help to notice phpBB is so dead it's not even on this chart. -- Shirluban [[Special:Contributions/172.71.122.79|172.71.122.79]] 10:37, 17 November 2022 (UTC)

I agree that the table is riddled with a surprising number of errors, but if the conspiracy theory that Randall has been replaced by another, evil cartoonist (as I write, the head of this explanation) is meant to be funny ... it didn't seem amusing to this particular explainer. [[User:Nitpicking|Nitpicking]] ([[User talk:Nitpicking|talk]]) 12:55, 17 November 2022 (UTC)
: It wasn't meant to be funny, it was meant to explain the comic. How much fake news about fake news about fake news do we need before we talk about it? It's clear to anybody who can tell how severe the mistakes are, that this is what the comic is about. [[Special:Contributions/172.70.111.29|172.70.111.29]] 15:10, 17 November 2022 (UTC)

While I'm sure this could start a holy war in its own right, if you include MMS under the umbrella of SMS, you get sort-of file transfers and also group chats. [[User:Jpatterson|Jpatterson]] ([[User talk:Jpatterson|talk]]) 14:12, 17 November 2022 (UTC)

If you think about the difference between user *run* instances vs user *hosted* instances, that might explain why Discord, Reddit, and Slack all have that check. However, I can't think of a possible reason why Mastodon is missing "Doesn't require central server" when that is its main selling point. :shrug: [[Special:Contributions/108.162.246.67|108.162.246.67]] 14:59, 17 November 2022 (UTC)

Somebody reverted my change that IRC does not require a central server, but it doesn't. The protocol has clients connecting to _one_ server among a _network_ of interconnected servers, where anybody can run such a network. [[Special:Contributions/172.70.111.29|172.70.111.29]] 15:10, 17 November 2022 (UTC)
: There's still going to be centralization of administration even among federated nets of IRC servers, unlike USENET for example. [[Special:Contributions/172.69.33.168|172.69.33.168]] 15:31, 17 November 2022 (UTC)

Are we encountering a new kind of vandalism where plausible edits are made introducing terrible prose, typos, and falsehoods? I noticed something similar happened with the recent Y2K comic. I really don't like to log in because we usually show we can do good work with most people logged out and IP's CDN-obfusticated for actual mass anonymity, but I will absolutely log in and push for page protection if vandals start trying to get insidious with subterfuge. [[Special:Contributions/172.69.33.168|172.69.33.168]] 15:31, 17 November 2022 (UTC)
:I don't know what vandalisms you're referring to. I've been adding the "Intermediate Edits", mostly behind HTML comments while fine-tuning so as not to make it look awful during the time I know it'll be half-completed (or less!).
:As to terrible prose, I cannot refute the possibility that I'm guilty of that. I do my best, but genuine typos or personal proclivities for purple prose may indeed creep in.
:With falsehoods, nothing I have added (or changed) is deliberately wrong, but may be not the same interpretation as someone else. I'm somewhat handicapped by not being a (regular/registered) user of most of the services (and may understand, e.g., Mesh Networking only in a form that a modern re-envisaging of it has moved drastically away from), but I've been taking my cues from only the very best external references (or Wikipedia!) and trying to boil down the supernumary technicalities to a more Explainxkcd-friendly format.
:As always, another editor with a genuinely better idea (in all those aspects) can refine things. As, I notice, has already been started. Didn't get an Edit Conflict, which I put down to being short and sharp in my insertions, and hope I caused not too many for others. - Taking a break from imposing my own edits, now. I shall deal with any further changes (or reversions) in good heart when I get the time again, later. Good luck and good editing to those who wish to pick up any of the work (or rework it) in the meantime. [[Special:Contributions/172.70.91.53|172.70.91.53]] 15:58, 17 November 2022 (UTC)

I think some of you missed the forest for the trees. The point of the comic is to illustrate how feature comparison charts, which are very common sales tools, might be abused to show that the seller's product looks better than it really is. That should be in the explanation of the comic. [[Special:Contributions/172.70.210.243|172.70.210.243]] 17:27, 17 November 2022 (UTC)
: Agreed, there are a lot of the points that could be debated. Is "central server" meant a server not controlled by you? What is a user-run instance? As twitter has several clients available but is listed without "User-run instances". I bet cybiko is trending on google search right now. [[User:Harald|Harald]] ([[User talk:Harald|talk]]) 17:33, 17 November 2022 (UTC)
::Sort of https://trends.google.com/trends/explore?date=now%207-d&q=cybiko [[Special:Contributions/172.71.154.38|172.71.154.38]] 19:13, 17 November 2022 (UTC)
: Even though a line about this has now been added, it still seems like it's slightly missing the point, in that it doesn't mention that while the Cybiko may support all those features, that doesn't mean (as the chart implies) that it supports them in a way that is comparatively useful to most users as the other options listed. I feel like the explanation should focus on how the Cybiko supports each of the features in turn, and why that's not a sensible comparison to make to the other options. [[Special:Contributions/141.101.99.12|141.101.99.12]] 10:35, 18 November 2022 (UTC)

===Proposal===
Instead of trying to describe all the common platforms and features, as the HTML comments editor plans, why not just link to their Wikipedia articles and discuss the edge cases, like what counts as group chat or file transfer? Most people will understand the general terms. [[Special:Contributions/172.70.214.252|172.70.214.252]] 19:41, 17 November 2022 (UTC)
:I see it as a handy summary that the respective Wikilink (which could still be followed) discusses at length, with history, CEOs, controversies, etc that we don't (normally, except maybe Twitter – for obvious current reasons/inspiration). Enough to brief the slightly adrift user (I have no idea how Discord works, I thought it was like Zoom!) or to clarify the tech used (the Mesh concept was backboneless self-organising swarm-communication, in my day, but is it possibly like Torrenting, according to one version of explanation?) without copypastaing absolutely everything.
:Plus the extensive "this is wrong, that is wrong..." can be quickly folded into a caveat (as one comment says) rather than the current clump edited in at the end, where it's a pain to read and I'm not sure I even read it thoroughly anyway. [[Special:Contributions/172.70.90.2|172.70.90.2]] 21:19, 17 November 2022 (UTC)

Outlining in HTML comments was a terrible idea with the opposite intended effect, so I am moving them all here:

:Services
:<!- to be populated
:;Twitter
:A short-form 'microblogging' platform, originally based upon the use of SMS model (see below) for publishing a limited amount of text, with the option to directed towards named recipients and/or to highlight a topical subject by means of the much publicized 'hashtag'. It allows account-holders to read and respond to most of the global messages posted by other users, with some restrictions and only limited read access by those not subscribed.
:Twitter has recently been in the news due to its long-winded purchase by {{w|Elon Musk}} and the subsequent mass-firings/reorganization of its staff, causing much turmoil within its userbase and others with an interest in its use.
:As such, Twitter is capable of Direct Messaging (DMs) and a Group Chat that defaults to being one universal talking-shop limited only by the reader's ability to discover and follow any particular person or subject of interest.
:;Discord
:Built as a platform for those involved in social gaming, it combines audio ({{w|VOIP}}) and text-messaging access through thematic chat rooms with a primarily invite-led mechanism to participate in those relevant to a given interest or activity.
:The capabilities of DMs, Group Chats, File Transfers, Built-in Games and User-Run Instances are noted.
:* Although Discord apparently does not provide for user-run instances itself. There are two third-party Discord server implementations, but it is unclear whether those could be counted as user-run instances of Discord.
:;Mastodon

:;Facebook (FB)

:;Slack

:;Signal

:;Internet Relay Chat (IRC)

:;Tumblr

:;Reddit

:;Short Messaging Service (SMS)
:-- yet to be populated -->
:...
:<!- Also need to explain features: *DONE*Direct messages*DONE*, Group chats, File transfer, Built-in games, User-run instances, Doesn't require central server, *DONE*Mesh networking*DONE*, Wireless message delivery (without internet) -->
:...
:<!- The following can be shuffled into :*bulletpoints against the Services header, once populated, I hope... -->
:...
:<!- Probably two individual tables, or ;headered itemized lists, but not a single table as per comic (and as per Transcript) as fitting description text in place of ticks (or lack of them?) would look *awful*... -->
:<!- ...these comments as placeholder, or checklist for each item needing commenting, depending on how the next active editor directs things... -->

Valiant effort, questionable implementation, terrible follow-through. [[Special:Contributions/172.71.158.90|172.71.158.90]] 18:05, 18 November 2022 (UTC)

Talk:2698: Bad Date

2022-11-14T16:34:35Z

172.71.158.90: tacoguy

There was a time when just the fact that she was looking at her cellphone during the date would be evidence that it's not going well. Sadly, it's probably normal these days. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:05, 14 November 2022 (UTC)

https://www.youtube.com/watch?v=w1iH1hppneo [[Special:Contributions/172.71.158.90|172.71.158.90]] 16:34, 14 November 2022 (UTC)

2697: Y2K and 2038

2022-11-11T19:34:32Z

172.71.158.90: /* Explanation */ paragraphs, fix number

{{comic
| number = 2697
| date = November 11, 2022
| title = Y2K and 2038
| image = y2k_and_2038_2x.png
| imagesize = 527x190px
| noexpand = true
| titletext = It's taken me 20 years, but I've finally finished rebuilding all my software to use 33-bit signed ints.
}}

==Explanation==
{{incomplete|Created by a Y2K-BRICKED BOT. Do NOT delete this tag too soon.}}

[[File:Year 2038 problem.gif|thumb|An animation of the 2038 bug in action. The {{w|integer overflow}} error occurs at 03:14:08 UTC on 19 January 2038.]]

The Y2K bug, or more formally, the {{w|year 2000 problem}}, was the computer errors caused by two digit software representations of calendar years not correctly handling the year 2000, such as by treating it as 1900 or 19100. The {{w|year 2038 problem}} is a similar issue with timestamps in {{w|Unix time}} format, which will overflow their {{w|Signed number representations|signed}} 32-bit binary representation on January 19, 2038.

While initial estimates were that the Y2K problem would require about half a trillion dollars to address, there was widespread recognition of its potential severity several years in advance. Concerted efforts among organizations including computer and software manufacturers and their corporate and government users reflected unprecedented cooperation, testing, and enhancement of affected systems costing substantially less than the early estimates. On new years day 2000, few major errors actually occurred. Those that did usually did not disrupt essential processes or cause serious problems, and the many fewer of those that did were usually addressed in days to weeks. The software code reviews involved allowed correcting other errors and providing various enhancements which likely made up for the the cost of merely correcting the date bug.{{Actual citation needed}}

It is unclear whether the 2038 problem will be addressed as effectively in time, but documented experience with the Y2K bug and increased software modularity has allowed many otherwise vulnerable systems to already upgrade to wider timestamp and date formats, so there is reason to believe that it may be even less consequential and expensive. The 2038 problem has been previously mentioned in [[607: 2038]] and [[887: Future Timeline]].

The caption in this comic provides a punchline: everyone should have completed their "Y2K recovery" as it has been a full 22 years since the year 2000. It is highly unlikely that there are more than a very few consequential older systems that still suffer from this bug, and any modern systems have already been built to handle the years 2000 and later.

The title text refers to replacing the 32-bit signed Unix time format with a hypothetical new 33-bit signed {{w|Integer (computer science)|integer}} time and date format, which is very unlikely as almost all computer data structure formats are allocated no more finely than in 8-bit bytes. Taking 20 years to develop and implement such a format is not entirely counterproductive, as it would add another 68 years of capability.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

[A timeline rectangle spanning from 2000 to 2038 divided into two halves. The first is labeled "Recovering from the Y2K bug" and the second labeled "Preparing for the 2038 bug." An arrow labeled "Now" is pointing approximately at the year 2022.]

[Caption:] By now you should have finished your Y2K recovery and be several years into 2038 preparation

{{comic discussion}}
[[Category:Calendar]]
[[Category:Computers]]
[[Category:Programming]]
[[Category:Timelines]]

2697: Y2K and 2038

2022-11-11T18:33:33Z

172.71.158.90: /* Explanation */ fix template