explain xkcd - User contributions [en]

Talk:1730: Starshade

2016-09-07T10:28:12Z

198.41.239.34: Hm...

I would like to note that in the last frame the microphone booms on the headsets are on the right side, rather than on the left, which would have been more common. [http://ux.stackexchange.com/questions/60749/why-most-of-the-microphones-are-placed-on-the-left-of-headsets-headphones Stackexchange discussion]

Is this comic sexist? [[Special:Contributions/198.41.239.34|198.41.239.34]] 10:28, 7 September 2016 (UTC)

1727: Number of Computers

2016-08-31T10:26:00Z

198.41.239.34: Graph extends above 100 billion, not just above 10 billion.

{{comic
| number = 1727
| date = August 31, 2016
| title = Number of Computers
| image = number_of_computers.png
| titletext = They try to pad their numbers in the annual reports by counting Galileo's redundant systems as multiple computers, but they're falling behind badly either way.
}}

==Explanation==
{{incomplete|Rough draft, needs better phrasing and transcript}}
In this comic is a graph of all computers in the world, on a log scale. Also on the page is a graph representing all computers destroyed by NASA by throwing them into Jupiter.

Space probes sent to Jupiter are typically scheduled to deorbit and fall into Jupiter's atmosphere. There are multiple reasons for this, including avoiding contaminating Europa with Earth pathogens.

The caption below the comic humorously implies that NASA's reasons for causing the probes to deorbit is merely to destroy computers for the sake of destroying computers (and failing horribly, given they have destroyed three computers out of >100 billion).

==Transcript==
[A graph is shown, with the x-axis representing time (labeled in years from 1942 until 2030) and the y-axis indicating computer count. There is a line that starts slowly, then rockets up exponentially, eventually reaching the right edge of the graph at ~10 billion, labeled 'Number of Computers created.' On the right, another line appears, this one barely sloping upwards at all, capping out at 4, labeled 'Number of Computers destroyed by hurtling them into Jupiter.'

Caption: NASA needs to pick up the pace if they ever want to finish the job.

Title text: They try to pad their numbers in the annual reports by counting Galileo's redundant systems as multiple computers, but they're falling behind badly either way.

{{comic discussion}}

1692: Man Page

2016-06-11T14:49:01Z

198.41.239.34:

{{comic
| number = 1692
| date = June 10, 2016
| title = Man Page
| image = man_page.png
| titletext = For even more info, see blarbl(2)(3) and birb(3ahhaha I'm kidding, just Google it like a normal person.
}}

==Explanation==
This comic shows a {{w|Unix}} manual page, i.e. a ''{{w|man page}}'' (hence the title), for a fictional program called "[http://da.urbandictionary.com/define.php?term=blerp blerp]". Unix man pages are meant to provide a brief reference on the usage of a command, not extended explanations with tutorials as may be found in many hardcopy product manuals. Unfortunately, Unix commands tend to be very bloated and include lots of optional behavior that is often irrelevant to the command and can be done much more easily using shell features like piping and redirection, and thus the manpage grows to explain all of the features. This example exaggerates the obscurity and terseness found in many man pages, making fun of the typical style of the genre.

It follows the prescribed format for a man page, with the following sections:
* Command Name: self-explanatory
* Synopsis: details of the valid command line formats
* Description: summary account of the purpose and operation of the command
* Options: detailed description of all the available command line arguments
* See Also: references to other man pages with relevance
* Bug Reports: contact details for the support group (if any)
* Copyright: details of the ownership and rights status of the man page (not the program)

However most the contents of these sections are not very meaningful, or even obey the correct syntax.

The Synopsis section is supposed to be in a {{w|Regular Expression|regex}}-like language called {{w|Wirth Syntax Notation}}, with structures like

* {<list of valid alternatives>}, e.g. blerp {A,B,C}
* [<optional element>], e.g. blerp [-o [<output file>]]
* <something> ... meaning repeat <something> as many times as you need

But the two Synopsis lines given do not have valid syntax; they randomly mix objects and syntactic characters, and the curly and square brackets are not properly nested or paired.

The Description section provides a somewhat unhelpful summary that could apply to almost any Unix command. Processing input files (or output of other commands in a pipeline) is a generic function for Unix shell tools, as is specifying their behaviour with command line arguments, environment variables and flags.

The options are in alphabetical order (putting lower case before upper case and with an em-dash inserted between b and c the only exception to this order).

{{w|Command-line_interface#Command-line_option|Command-line options}}, also known as flags, are typed following a program name to change how the program runs. The following is an example usage.

<code>blerp -a -d -t -p "AVIGNON"</code>

This would run blerp in attack mode, outputting to DEBUG.EXE, with tumble dry, and with POPE set to AVIGNON. In most cases, any number of flags can be used in any order, and applicable flags can be followed by arguments (such as "AVIGNON" in this example).

For a walk through of all possible flags see the '''[[#Table of flags|table of flags]]''' below.

Below the flags there is a ''see also'' list with other stupid program names. Apart from two more blerbs there is also blirb, [http://da.urbandictionary.com/define.php?term=Blarb blarb] and [http://da.urbandictionary.com/define.php?term=Blorp blorp], with chapter references. The last blorp(501)(c)(3) is not a valid chapter reference for a man page, it is however a slightly covert reference to {{w|501(c)_organization#501.28c.29.283.29|501(c)(3)}} which is an organization that is {{w|Tax exemption|tax-exempt}}.

Then follows a bug report site. http://www.inaturalist.org is a site working to extend biological research, and the exact address given, http://www.inaturalist.org/taxa/47744-Hemiptera, points to the same page as http://www.inaturalist.org/taxa/Hemiptera. {{w|Hemiptera}} is the order classifying ''true bugs'', making it a good place to report any biological bugs discovered while running a program (such as certain insects that got into certain early computers, causing the computers to malfunction and giving the name "bug" to computer malfunctions).

Finally there is a "{{w|copyright}}" line which references several variously open-source content licenses which is also a recurring theme on xkcd (see [[225: Open Source]]). For instance GPL references {{w|GNU General Public License}} and the (2) and (3+) refers to {{w|GNU_General_Public_License#Version_2|GPL 2}} and {{w|GNU_General_Public_License#Version_3|GPL 3 or higher}}. ''CC'' refers to {{w|creative commons}} where ''BY'' is the {{w|Creative_Commons_license#Types_of_licenses|type of license}}, ''5.0'' refers to the attribution and ''RV 41.0'' refers to revision 41.0. However there were no higher attribution than [https://creativecommons.org/licenses/by/4.0/legalcode 4.0] at the time of this comics release. xkcd is released under [http://creativecommons.org/licenses/by-nc/2.5/ CC BY-NC 2.5] as can be seen at the bottom of the {{xkcd}}  homepage. A few comics have been released under the [[:Category:CC-BY-SA comics|CC-BY-SA license]] or [http://creativecommons.org/licenses/by-sa/3.0/ 3.0]. BSD refers to {{w|BSD licenses}} a [[:Category:BSD|recurring theme]] in xkcd. "Like Gecko" is a reference to a web browser user-agent string; modern user-agent strings include a lot of text designed{{Citation needed}} to let the browser pretend to be several different browsers/renderers, and "(like Gecko)" is the standard text for a browser that wants to be treated as if it were {{w|Gecko (software)|Gecko}} while admitting, if you look closely, that it isn't really Gecko. This copyright line, which includes a lot of mashed-together text that might appear to match any of several different licenses, resembles a {{w|user agent}} string.

"Or best offer" is a reference to a private sale, such as of a car parked outside a home, with a hand-made notice proclaiming the intent to sell to any passer-by who may be interested, usually with relevent details including a suggested price "or best offer", to indicate a willingness to be flexible for a quicker sale. In context, it suggest the person who has the highest offer for ''blerp'' will be sold the rights to the program. Since the other licenses mentioned would allow for free usage without paying royalties, it would usually be pointless to buy the rights to the program. The owner could possibly revoke the other licenses though.

In the title text there is a list with even more info, again with crazy names like [http://blarbl.blogspot.dk/ blarbl] and [http://da.urbandictionary.com/define.php?term=birb birb]. Again there are page references, but for the last the person writing this stops writing the reference and begins to laugh at whom ever still reads this man page and telling them that he is kidding and suggest that they ''just Google it like a normal person''. The writer of this text thus also stops finishing the brackets as the ending ")" for the last chapter is missing.

Man pages were part of the subject of [[293: RTFM]], [[912: Manual Override]] and [[1343: Manuals]] and were mentioned in [[434: xkcd Goes to the Airport]] and [[456: Cautionary]].

===Table of flags===
*There are 28 flags.
**Only these five letters are not used: l, m, w, x, z.
**j and k are used together as jk.
**The following seven capital letters are used: D, I, O, R, S, U, V.
***That makes it one capital letter for every lower case letter that is not used by itself.
**Finally the em dash "—" is used as the only non-letter character. Also the only that breaks the strict alphabetical sorting of the list, with lower case before upper case letters.
{| class="wikitable"
!Flag!!Description!!Explanation
|-
| -a||ATTACK MODE||This sounds like a command for a robot or something similar. Strange for a command line program. Possibly this is designed to break something?
|-
| -b||SUPPRESS BEES||Nonsensical option. This is a word play, meaning either to suppress {{w|Bee|Bees}} (the insects) or the letter '''B'''. A possible implication is that running the program without this flag would somehow result in the user being attacked by bees. This is also a possible {{w|Discworld}} reference, as the ''{{W|Hex_(Discworld)#Structure_and_technology|long-term storage}}'' of the only recurring computer in the series, ''{{w|Hex (Discworld)|Hex}}'', is composed of a beehive. (Note that the actual computer runs on ants.)
|-
| -—||FLAGS USE EM DASHES||Command line options (flags) typically use {{w|Hyphen|hyphens}} (short horizontal lines largely used within words). {{w|Dash#Em_dash|Em dashes}} (longer, with the same length as the letter "m") can't always be easily typed into a command line interface, so switching flags from hyphens to em dashes is excessively difficult and nonsensical.

This may be a play on how a lot of commands accept both single-dash options, like -h for help, as well as double-dash options like --help also for help. In word processors, a double-dash (--) is often replaced with the longer em dash (—), making them kind of synonymous.

Also implies a paradox where if flags were to use em dashes, this flag itself would be invalid.
|-
| -c||COUNT NUMBER OF ARGUMENTS||Most likely not useful.
|-
| -d||PIPES OUTPUT TO DEBUG.EXE||{{w|DEBUG.EXE}} is the old 16-bit debugger that came with MS-DOS. On a Unix system it is much more likely that one would use the {{w|GNU Debugger}} (GDB). A debugger is usually called by calling the debugger with the program (or script) to be debugged as parameter.
{{w|Pipeline (Unix)|Piping}} in Unix means that the output of one program serves as input for another program.
|-
| -D||DEPRECATED||Many programs contain legacy options to avoid breaking scripts that use them. While the option should still work, the documentation is changed to say "deprecated" to discourage further use. Eventually such options usually get removed. (However, given the nature of this comic, it's likely that -D has always stood for "deprecated".)
|-
| -e||EXECUTE SOMETHING||Vague. Also a possible pun on a kill-switch.
|-
| -f||FUN MODE||Strange and slightly ominous, given some of the other options. See under -O.
|-
| -g||USE GOOGLE||As an actual program flag, a bit hackjob-ish, but it is possible it is telling the user to use Google to find out what this tag does.
|-
| -h||CHECK WHETHER INPUT HALTS||Completely impossible, by the {{w|Halting problem}} which is the problem of determining, from a description of an arbitrary computer program and an input, whether the program will finish running or continue to run forever. {{w|Alan Turing}} proved in 1936 that a general algorithm to solve the halting problem for all possible program-input pairs cannot exist.

Note that most commands reserve -h for help, so using it for a different function is non-standard. Such is common for many Unix and Linux commands.
|-
| -i||IGNORE CASE (LOWER)||Usually, ignoring case means that a program will run without differentiating between upper- and lowercase. This flag suggests that blerp will run ignoring all the lowercase characters completely, or ignoring all the uppercase characters with the next flag "-I". Note that using this may make it ignore the difference for flags like -i and -I...
|-
| -I||IGNORE CASE (UPPER)||See above. Also possible that all text is converted to upper case, or that upper-case requirements only are ignored
|-
| -jk||KIDDING||A common acronym for [http://www.urbandictionary.com/define.php?term=jk Just Kidding], not a program flag. Also note that standard behavior of Unix command line options is that a single "-" can be followed by multiple one-letter options, making -jk equivalent to -j -k.
|-
| -n||BEHAVIOR NOT DEFINED||Possibly mathematically ominous? Otherwise useless.(Possible debug/unstable feature flag)
|-
| -o||OVERWRITE||Standard program flag, usually meaning that the program will overwrite a file rather than make a new one when data is output.May work strangely with -d.
|-
| -O||OPPOSITE DAY||Strange flag, possibly means that all other flags (or maybe even including this one!) have the opposite effects - if so, a lot of strange things would happen. (Especially with -b, -e, -f, -jk, -O...). This may be a reference to the SpongeBob SquarePants episode [http://spongebob.wikia.com/wiki/Opposite_Day "Opposite Day"].
|-
| -p||SET TRUE POPE; ACCEPTS "ROME" OR "AVIGNON"||This refers to a {{w|Western_Schism|historical schism}} in the {{w|Catholic Church}}. In the 14th century, the Pope briefly ruled from Avignon, France, instead of Rome. After the Papacy was returned to Rome in 1377, the Church split (the so-called Western Schism) as not everyone accepted the move and the Pope who ordered it. This flag apparently allows the user to select a preferred Pope. There is actually a possible feature request here, as "PISA", a third Pope, should also be an option. It is the second time this week that Popes have been mentioned, last time was two comics before in [[1690: Time-Tracking Software]] regarding the Popes sexual activity.
|-
| -q||QUIET MODE; OUTPUT IS PRINTED TO STDOUT INSTEAD OF BEING SPOKEN ALOUD||In most cases, a program will output basic information to the console, and running it in quiet mode will make it run without outputting anything. Blerp, on the other hand, outputs information through audio, and the quiet flag causes it to run like a normal program. "STDOUT" is short for "standard output".
|-
| -r||RANDOMIZE ARGUMENTS||Pointless and possibly damaging.
|-
| -R||RUN RECURSIVELY ON <nowiki>http://*</nowiki>||The star (*) symbol is often used as a wildcard to match any string of characters. "<nowiki>http://*</nowiki>" suggests that blerp will be run on every (unsecured) webpage on the internet, or on each page recursively. What it might do in order to make this valid is also ominous.
|-
| -s||FOLLOW SYMBOLIC LINKS SYMBOLICALLY||A {{w|symbolic link}} is a filesystem feature that allows the creation of "fake" files which when accessed redirect to another file path. Many commands offer an option to follow filesystem links and operate on the actual file rather than the fake pointer; this option however seems to suggest that it will only politely pretend to do so.
|-
| -S||STEALTH MODE||Similar to -a, in that it sounds more like an option for some kind of robot.
|-
| -t||TUMBLE DRY||Perhaps useful for a program that runs on a clothes dryer. Refers to [https://img1.etsystatic.com/000/0/5254504/il_570xN.184726893.jpg directions like these]. Many clothing items are marked "do not tumble dry" in the care instructions, but this would be extremely difficult to make relevant to a program. Given the other flags, this may be less nonsensical than it would first appear..
|-
| -u||UTF-8 MODE; OTHERWISE DEFAULTS TO ANSEL||{{w|ANSEL}} is an old and obscure character encoding that predates ASCII. Using ANSEL as a default would be strange and largely incompatible with most modern systems. On the other hand, UTF-8 is rather standard. Similar in this regard to -q, blerp does something non-standard by default. The problem with using different modes (where the original was also UTF-8) is shown in the title text of [[1683: Digital Data]].
|-
| -U||UPDATE (DEFAULT: FACEBOOK)||Update usually refers to replacing an old software with a newer version. The default here suggests posting a status update to Facebook, sourcing an update form Facebook, or updating Facebook itself.
|-
| -v||VERBOSE; ALIAS TO find / -exec cat {}||Almost standard flag, in ordinary programs the opposite of -q - instead of silencing output, it makes it more specific, usually to help with debugging. Instead, this flag gets replaced with a command that prints the contents of all files in the filesystem tree. However, it will never complete, as certain device files never end (/dev/urandom contains random bytes). Note that the "find" command is missing <code>\;</code> and will not run, instead complaining <code>find: missing argument to `-exec'</code> .
|-
| -V||SET VERSION NUMBER||Many programs will have a flag to view the version number. This flag changes the version number instead. Version number should only be changed when the program is updated (because it's used for distinguishing which edition of a program you have), so manually changing the version number like this is strange and a little dangerous.
|-
| -y||YIKES||[[wiktionary:yikes|yikes]] is an interjection which can express fear or empathy with unpleasant or undesirable circumstances. It is unclear how this would influence the program.
|}

==Transcript==
:[A terminal screen; the background is black and the text is white.]
<div style="background-color:black;color:white;white-space:pre-wrap;font-family:monospace;padding: 0 2em;max-width:50em;">
;NAME
:blerp
;SYNOPSIS
:blerp {[ OPTION | ARGS ]...[ ARGS ... -f [FLAGS] ...}
:blerp {... DIRECTORY ... URL | BLERP} OPTIONS ] -{}
;DESCRIPTION
:blerp FILTERS LOCAL OR REMOTE FILES OR RESOURCES USING PATTERNS DEFINED BY ARGUMENTS AND ENVIRONMENT VARIABLES. THIS BEHAVIOR CAN BE ALTERED BY VARIOUS FLAGS.
;OPTIONS
:-a ATTACK MODE
:-b SUPPRESS BEES
:-— FLAGS USE EM DASHES
:-c COUNT NUMBER OF ARGUMENTS
:-d PIPES OUTPUT TO DEBUG.EXE
:-D DEPRECATED
:-e EXECUTE SOMETHING
:-f FUN MODE
:-g USE GOOGLE
:-h CHECK WHETHER INPUT HALTS
:-i IGNORE CASE (LOWER)
:-I IGNORE CASE (UPPER)
:-jk KIDDING
:-n BEHAVIOR NOT DEFINED
:-o OVERWRITE
:-O OPPOSITE DAY
:-p SET TRUE POPE; ACCEPTS "ROME" OR "AVIGNON"
:-q QUIET MODE; OUTPUT IS PRINTED TO STDOUT INSTEAD OF BEING SPOKEN ALOUD
:-r RANDOMIZE ARGUMENTS
:-R RUN RECURSIVELY ON <nowiki>http://*</nowiki>
:-s FOLLOW SYMBOLIC LINKS SYMBOLICALLY
:-S STEALTH MODE
:-t TUMBLE DRY
:-u UTF-8 MODE; OTHERWISE DEFAULTS TO ANSEL
:-U UPDATE (DEFAULT: FACEBOOK)
:-v VERBOSE; ALIAS TO find / -exec cat {}
:-V SET VERSION NUMBER
:-y YIKES
;SEE ALSO
:blerp(1), blerp(3), blirb(8), blarb(51) blorp(501)(c)(3)
;BUG REPORTS
:<nowiki>http://www.inaturalist.org/taxa/47744-Hemiptera</nowiki>
;COPYRIGHT
:GPL(2)(3+) CC-BY/5.0 RV 41.0 LIKE GECKO/BSD 4(2) OR BEST OFFER
</div>

{{comic discussion}}

[[Category:Programming]]
[[Category:Computers]]
[[Category:BSD]]
[[Category:Animals]]

Talk:1683: Digital Data

2016-05-20T09:54:38Z

198.41.239.34: Yeah.

Ewww, Verizon? **** them [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 04:58, 20 May 2016 (UTC)

Ironically, the title text on explainxkcd is different from the one on xkcd.com, demonstrating the reinterpretation of text encoded in UTF-8 as if it were encoded in ISO 8859-1. [[Special:Contributions/162.158.85.231|162.158.85.231]] 05:45, 20 May 2016 (UTC)

-Exactly; this nicely proves Randall's point. On my computer, different characters appear in different browsers, but of course in one browser the characters are reproducible.--[[User:Jkrstrt|Jkrstrt]] ([[User talk:Jkrstrt|talk]]) 07:26, 20 May 2016 (UTC)

Here is the decoded title text:
“If you can read this, congratulations–the archive youʼre you're using still knows about the mouseover text”!

He's written you're twice, but one is with a curly apostrophe, often favoured by americans (and maybe brits?), possible because of their keyboard. The simple apostrophe is “just” html-formatted, whereas the curly one has been molested by a UTF-8 / ISO-8859-1 misreading.
--[[Special:Contributions/108.162.229.16|108.162.229.16]] 07:51, 20 May 2016 (UTC)

This is a phenomenon that has always both fascinated me and frustrated me. I find it fascinating how, even today, data degrades as more and more people copy it (remember the old days when people used to copy VHS tapes, and the further you were from the original tape the more copying artefacts your copy had in it?). It also frustrates me, though, when I'm trying to find an original, undegraded image or video and it seems impossible to find. It's also annoying because it's actually pretty easy to copy something without causing any quality loss, yet practically every copied image on the internet has been degraded in some way or another. [[Special:Contributions/141.101.98.130|141.101.98.130]] 07:08, 20 May 2016 (UTC)

:If you haven't yet, you should check out this guy who ripped and reuploaded his own Youtube video 1000 times: https://www.youtube.com/watch?v=jEIzS_27Vt0 [[Special:Contributions/162.158.222.150|162.158.222.150]] 08:28, 20 May 2016 (UTC)

It's also funny because just a few moments ago I was trying to compress some video to send to someone. [[Special:Contributions/141.101.98.130|141.101.98.130]] 07:12, 20 May 2016 (UTC)

http://fotoforensics.com/analysis.php?id=274fcf46426f2da31b057f1652ae5269cfdbd70a.190103 this page highlights the encoding blocks so that the degration of quality can be seen better. [[Special:Contributions/141.101.91.205|141.101.91.205]] 09:42, 20 May 2016 (UTC)

Talk:1679: Substitutions 3

2016-05-13T00:29:41Z

198.41.239.34:

The title text may be a reference to the Mayan city discovered by a 15 year old, but that city hasn't yet been visited by scientists or Mr Tatum. https://translate.google.com/translate?tl=en&u=http%3A%2F%2Fwww.journaldemontreal.com%2F2016%2F05%2F07%2Fun-ado-decouvre-une-cite-maya [[Special:Contributions/198.41.239.34|198.41.239.34]] 13:32, 11 May 2016 (UTC)

Here's the code for the full set of substitutions from all three comics, to be inserted in the Chrome extension the page listed, which can be found here: https://chrome.google.com/webstore/detail/replacerator/gaajhenbcclienfnniphiiambbbninnp?hl=en
<div style="font-size: 25%;">{"Google Glass":"virtual boy","a unknown number":"like hundreds","allegedly":"kinda probably","ancient":"haunted","at large":"very large","behind the headlines":"beyond the grave","candidate":"airbender","car":"cat","cautiously optimistic":"delusional","congressional leaders":"river spirits","could not be reached for comment":"is guilty and everyone knows it","debate":"dance-off","disrupt":"destroy","doctor who":"the big bang theory","drone":"dog","election":"eating contest","electric":"atomic","email":"poem","expands":"physically expands","facebook ceo":"this guy","facebook post":"poem","first-degree":"friggin' awful","front runner":"blade runner","gaffe":"magic spell","global":"spherical","homeland security":"homestar runner","horsepower":"tons of horsemeat","latest":"final","meeting":"ménage à trois","minutes":"years","new study":"Tumblr post","no indication":"lots of signs","poll":"psychic reading","rebuild":"avenge","remains to be seen":"will never be known","scientists":"Channing Tatum and his friends","second-degree":"friggin' awful","selfdriving":"uncontrollably swerving","senator":"elf-lord","silver bullet":"way to kill werewolves","smartphone":"Pokédex","space":"spaaace","star-studded":"blood-soaked","subway system":"tunnels I found","successfully":"suddenly","surprising":"surprising (but not to me)","tension":"sexual tension","third-degree":"frigging' awful","tweet":"poem","urged restraint by":"drunkenly egged on","vows to":"probably won't","war of words":"interplanetary war","win votes":"find pokémon","witnesses":"these dudes I know","years":"minutes","you won't believe":"I'm really sad about"}</div>

I would put it somewhere more convenient if I knew a site for it. [[Special:Contributions/141.101.104.158|141.101.104.158]] 13:46, 11 May 2016 (UTC)
:This reminds me an awful lot of the title text in the previous comic [[1678: Recent Searches]] regarding autoexec code posted by verified twitter users. :-p [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:48, 11 May 2016 (UTC)
::Is there a way to easily enable/disable the extension?[[User:Bmmarti3|Bmmarti3]] ([[User talk:Bmmarti3|talk]])
:::It appears there isn't... Go to your list of browser extensions, and enable/disable it.[[Special:Contributions/141.101.75.245|141.101.75.245]] 18:59, 11 May 2016 (UTC)
:::I personally use a different extension than was linked to on xkcd.com, titled xkcd substitutions, which can be turned off by clicking on the icon for it at the top of your Chrome window, and also allows you to set specific sites on which it will never change words (i.e. on Gmail). Here's the shortened link: http://bit.ly/VF8nTw [[Special:Contributions/173.245.54.49|173.245.54.49]] 22:31, 11 May 2016 (UTC)

It would be wonderful if the celebrity injunction was about a ménage à trois and somehow all the hype was Randall's fault. [[Special:Contributions/141.101.70.133|141.101.70.133]] 15:13, 11 May 2016 (UTC)
Great. Now I have to update this:https://chrome.google.com/webstore/detail/xkcd-substitutions/jkgogmboalmaijfgfhfepckdgjeopfhk?hl=en&gl=001 --[[Special:Contributions/108.162.215.69|108.162.215.69]] 18:24, 11 May 2016 (UTC)

[[Special:Contributions/108.162.216.91|108.162.216.91]]Here's a funny link, but I don't know how to edit it in: https://www.washingtonpost.com/investigations/how-clintons--scandal-took-root/2016/03/27/ee301168-e162-11e5-846c-10191d1fc4ec_story.html, it the substituted version is "How Clinton’s poem scandal took root"[[Special:Contributions/108.162.216.91|108.162.216.91]]

On Doctor Who > Big Bang Theory - the real life example isn't particularly interesting, as it's substituting one TV show for another. The more interesting cases are those where news headlines reference an actual doctor, who (something). For instance, in the criminal trial of amputee Oscar Pistorius, one TV banner referred to someone as "Doctor who cut off [his] legs". "The Big Bang Theory cut off [his] legs" is, to my mind, more bizarre.
[[Special:Contributions/141.101.98.119|141.101.98.119]] 16:54, 12 May 2016 (UTC)Andrew Williams; one day I'll make an account. 12/05/2016

== Weird substitution ==

Isn't 'tension' -> 'sexual tension' weird? It could result in the following texts:

'sexual tension' -> 'sexual sexual tension',

'cable tension' -> 'cable sexual tension'.

In short, whenever there's already something before 'tension' that gets modified, don't substitute (or replace those words (difficult to do automatically)) --[[User:Zom-B|Zom-B]] ([[User talk:Zom-B|talk]]) 07:43, 12 May 2016 (UTC)

Here's some javascript to run these substitutions (page may be unusable afterwards) - imma<br>
<code>document.body.innerHTML=[<br>
[/Gaffe/ig,"Magic spell"],
[/Ancient/ig,"Haunted"],
[/Star[- ]Studded/ig,"Blood-soaked"],
[/Remains to be seen/ig,"Will never be known"],
[/Silver[- ]bullet/ig,"Way to kill werewolves"],
[/Subway system/ig,"Tunnels I found"],
[/Surprising/ig,"Surprising (but not to me)"],
[/War[- ]of[- ]words/ig,"Interplanetary war"],
[/Tension/ig,"Sexual tension"],
[/Cautiously optimistic/ig,"Delusional"],
[/Doctor Who/ig,"The Big Bang Theory"],
[/Win votes/ig,"Find Pokémon"],
[/Behind (the )?headlines/ig,"Beyond the grave"],
[/Email|Facebook Post|Tweet|twitter post/ig,"Poem"],
[/Facebook CEO/ig,"This guy"],
[/Latest/ig,"Final"],
[/Disrupt/ig,"Destroy"],
[/Meeting/ig,"Ménage à trois"],
[/Scientists?/ig,"Channing Tatum and his friends"],
[/You won't believe/ig,"I'm really sad about"]<br>
].reduce((t,s)=>t.replace(s[0],s[1]),document.body.innerHTML)</code><br>
[[Special:Contributions/162.158.34.139|162.158.34.139]] 08:30, 12 May 2016 (UTC)

Talk:1679: Substitutions 3

2016-05-12T09:38:02Z

198.41.239.34:

The title text may be a reference to the Mayan city discovered by a 15 year old, but that city hasn't yet been visited by scientists or Mr Tatum. https://translate.google.com/translate?tl=en&u=http%3A%2F%2Fwww.journaldemontreal.com%2F2016%2F05%2F07%2Fun-ado-decouvre-une-cite-maya [[Special:Contributions/198.41.239.34|198.41.239.34]] 13:32, 11 May 2016 (UTC)

Here's the code for the full set of substitutions from all three comics, to be inserted in the Chrome extension the page listed, which can be found here: https://chrome.google.com/webstore/detail/replacerator/gaajhenbcclienfnniphiiambbbninnp?hl=en
<div style="font-size: 25%;">{"Google Glass":"virtual boy","a unknown number":"like hundreds","allegedly":"kinda probably","ancient":"haunted","at large":"very large","behind the headlines":"beyond the grave","candidate":"airbender","car":"cat","cautiously optimistic":"delusional","congressional leaders":"river spirits","could not be reached for comment":"is guilty and everyone knows it","debate":"dance-off","disrupt":"destroy","doctor who":"the big bang theory","drone":"dog","election":"eating contest","electric":"atomic","email":"poem","expands":"physically expands","facebook ceo":"this guy","facebook post":"poem","first-degree":"friggin' awful","front runner":"blade runner","gaffe":"magic spell","global":"spherical","homeland security":"homestar runner","horsepower":"tons of horsemeat","latest":"final","meeting":"ménage à trois","minutes":"years","new study":"Tumblr post","no indication":"lots of signs","poll":"psychic reading","rebuild":"avenge","remains to be seen":"will never be known","scientists":"Channing Tatum and his friends","second-degree":"friggin' awful","selfdriving":"uncontrollably swerving","senator":"elf-lord","silver bullet":"way to kill werewolves","smartphone":"Pokédex","space":"spaaace","star-studded":"blood-soaked","subway system":"tunnels I found","successfully":"suddenly","surprising":"surprising (but not to me)","tension":"sexual tension","third-degree":"frigging' awful","tweet":"poem","urged restraint by":"drunkenly egged on","vows to":"probably won't","war of words":"interplanetary war","win votes":"find pokémon","witnesses":"these dudes I know","years":"minutes","you won't believe":"I'm really sad about"}</div>

I would put it somewhere more convenient if I knew a site for it. [[Special:Contributions/141.101.104.158|141.101.104.158]] 13:46, 11 May 2016 (UTC)
:This reminds me an awful lot of the title text in the previous comic [[1678: Recent Searches]] regarding autoexec code posted by verified twitter users. :-p [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 13:48, 11 May 2016 (UTC)
::Is there a way to easily enable/disable the extension?[[User:Bmmarti3|Bmmarti3]] ([[User talk:Bmmarti3|talk]])
:::It appears there isn't... Go to your list of browser extensions, and enable/disable it.[[Special:Contributions/141.101.75.245|141.101.75.245]] 18:59, 11 May 2016 (UTC)
:::I personally use a different extension than was linked to on xkcd.com, titled xkcd substitutions, which can be turned off by clicking on the icon for it at the top of your Chrome window, and also allows you to set specific sites on which it will never change words (i.e. on Gmail). Here's the shortened link: http://bit.ly/VF8nTw [[Special:Contributions/173.245.54.49|173.245.54.49]] 22:31, 11 May 2016 (UTC)

It would be wonderful if the celebrity injunction was about a ménage à trois and somehow all the hype was Randall's fault. [[Special:Contributions/141.101.70.133|141.101.70.133]] 15:13, 11 May 2016 (UTC)
Great. Now I have to update this:https://chrome.google.com/webstore/detail/xkcd-substitutions/jkgogmboalmaijfgfhfepckdgjeopfhk?hl=en&gl=001 --[[Special:Contributions/108.162.215.69|108.162.215.69]] 18:24, 11 May 2016 (UTC)

[[Special:Contributions/108.162.216.91|108.162.216.91]]Here's a funny link, but I don't know how to edit it in: https://www.washingtonpost.com/investigations/how-clintons--scandal-took-root/2016/03/27/ee301168-e162-11e5-846c-10191d1fc4ec_story.html, it the substituted version is "How Clinton’s poem scandal took root"[[Special:Contributions/108.162.216.91|108.162.216.91]]

== Weird substitution ==

Isn't 'tension' -> 'sexual tension' weird? It could result in the following texts:

'sexual tension' -> 'sexual sexual tension',

'cable tension' -> 'cable sexual tension'.

In short, whenever there's already something before 'tension' that gets modified, don't substitute (or replace those words (difficult to do automatically)) --[[User:Zom-B|Zom-B]] ([[User talk:Zom-B|talk]]) 07:43, 12 May 2016 (UTC)

Here's some javascript to run these substitutions (page may be unusable afterwards) - imma<br>
<code>document.body.innerHTML=[<br>
[/Gaffe/ig,"Magic spell"],
[/Ancient/ig,"Haunted"],
[/Star[- ]Studded/ig,"Blood-soaked"],
[/Remains to be seen/ig,"Will never be known"],
[/Silver[- ]bullet/ig,"Way to kill werewolves"],
[/Subway system/ig,"Tunnels I found"],
[/Surprising/ig,"Surprising (but not to me)"],
[/War[- ]of[- ]words/ig,"Interplanetary war"],
[/Tension/ig,"Sexual tension"],
[/Cautiously optimistic/ig,"Delusional"],
[/Doctor Who/ig,"The Big Bang Theory"],
[/Win votes/ig,"Find Pokémon"],
[/Behind (the )?headlines/ig,"Beyond the grave"],
[/Email|Facebook Post|Tweet|twitter post/ig,"Poem"],
[/Facebook CEO/ig,"This guy"],
[/Latest/ig,"Final"],
[/Disrupt/ig,"Destroy"],
[/Meeting/ig,"Ménage à trois"],
[/Scientists?/ig,"Channing Tatum and his friends"],
[/You won't believe/ig,"I'm really sad about"]<br>
].reduce((t,s)=>t.replace(s[0],s[1]),document.body.innerHTML)</code><br>
[[Special:Contributions/162.158.34.139|162.158.34.139]] 08:30, 12 May 2016 (UTC)

Talk:1679: Substitutions 3

2016-05-11T13:32:00Z

198.41.239.34: Use the Internet to discover haunted ruins

1667: Algorithms

2016-04-14T04:53:39Z

198.41.239.34: You shouldn't have to explain colloquialisms as part of the explanation.

{{comic
| number = 1667
| date = April 13, 2016
| title = Algorithms
| image = algorithms.png
| titletext = There was a schism in 2007, when a sect advocating OpenOffice created a fork of Sunday.xlsx and maintained it independently for several months. The efforts to reconcile the conflicting schedules led to the reinvention, within the cells of the spreadsheet, of modern version control.
}}

==Explanation==
{{incomplete|Still need an explanation of the title text, and perhaps some expanded definitions of the listed algorithms.}}
An algorithm is a basic set of instructions for performing a task, usually on a computer. This comic lists some algorithms in increasing order of complexity, where complexity refers to {{w|computational complexity theory}}.

At the simplest end is '''left-pad''', or adding filler characters on the left end of a string to make it a particular length. In many programming languages, this is one line of code. This is possibly an allusion to a [http://www.haneycodes.net/npm-left-pad-have-we-forgotten-how-to-program/ recent incident] when {{w|Npm (software)|NodeJS Package Manager}} [https://www.techdirt.com/articles/20160324/17160034007/namespaces-intellectual-property-dependencies-big-giant-mess.shtml angered a developer] in its handling of a trademark claim. The developer unpublished all of his modules from NPM, including a package implementing left-pad. A huge number of programs depended on this third-party library instead of programming it on their own, and they immediately ceased to function.

'''{{w|Quicksort}}''' is an efficient and commonly used {{w|sorting algorithm}}.

'''{{w|Git (software)|Git}}''' is a {{w|version control}} program, i.e., software that allows multiple people to work on the same files at the same time. When someone finalizes ("commits") their changes, the version control program needs to figure out how to join the new content with the existing content. This process is called '''{{w|Merge (version control)|merging}}''', and the algorithm for it is anything but simple.

A '''{{w|self-driving car}}''' is an automobile with sensors and software built into it so that it can maneuver in traffic autonomously, i.e. without a human controller. Various companies have been working on such vehicles for many years now, and while they're further along now than would have been imaginable even a couple of years ago, we're still far away from the dream of hopping in a driver-less taxi and sitting back as the car itself navigates to where we want to be. Recently [[Randall]] has made several references to self-driving cars, for instance in [[1559: Driving]],[[1623: 2016 Conversation Guide]] and [[1625: Substitutions 2]].

The '''{{w|Google Search}} backend''' is what enables you to type "what the heck is a leftpad algorithm" into your browser and have Google return a list of relevant results, including correcting "leftpad" to "left-pad", ignoring the "what the heck" part, and sometimes even summarizing the findings into a box at the top of the results. Behind all that magic is a way to remember what pages the internet contains, which is just a mind-bogglingly large quantity of data, and an even more mind-numbingly complex set of algorithms for processing that data.

The last item is the punchline: a sprawling {{w|Microsoft Excel|Excel}} {{w|spreadsheet}} built up over 20 years by a church group in Nebraska to coordinate their scheduling. Spreadsheets are a general {{w|end-user development}} programming technique, and therefore people use Excel for all sorts of purposes that have nothing to do with accounting (its original purpose), including one guy who made a [http://arstechnica.com/gaming/2013/04/how-an-accountant-created-an-entire-rpg-inside-an-excel-spreadsheet/ role-playing game that runs in Excel]; but even that doesn't approach the complexity that develops when multiple people of varying levels of experience use a spreadsheet over many years for the purpose of coordinating the schedule of several coordinated groups.

The scheduling of tasks over a group of resources (a.k.a. the ''{{w|nurse scheduling problem}}''), while respecting the constraints set by each person, is a {{w|NP-hardness|highly complex}} problem requiring stochastic or heuristic methods for its resolution. Here, the algorithm would be further complicated by being solved by inexpert users over a spreadsheet model without using engineering practices. The hyperbole here is in thinking that such combination of circumstances would produce complexity far over that required to drive a car or sort the public contents of the internet. Most churches meet on Sunday morning, so there's no actual complexity in organizing that service, however, with different members involved in a wide variety of activities within and without the church, and the classrooms available to the church on Sunday itself, (just scheduling the choir practice times to coordinate with everyone's work schedules is very possibly impossible, especially if two people share the same occupation, and one is the relief for the other,) can indeed be daunting. In addition, there would likely be assorted committee meetings during the week.

In the title text, part of the spreadsheet's complexity is described as originating from different versions of the file for different programs. The words used like {{w|schism}} and {{w|sect}} are normally used in context of religions splitting into groups about differences in beliefs. In this case, the split seems to have been not over a {{w|theology|theological}} issue, but about the use of {{w|open-source software|open-source}} vs. {{w|proprietary software|proprietary}} software, disagreements about which are often compared to religious debates.

==Transcript==
'''Algorithms'''<br>By Complexity
{|
|colspan="6" style="text-align:left;border-bottom:1px solid;"|More complex →
|- style="vertical-align:top;"
|style="padding-right:2em;"|Leftpad
|style="padding-right:2em;"|Quicksort
|style="padding-right:2em;"|GIT<br>Merge
|style="padding-right:2em;"|Self-<br>driving<br>car
|style="padding-right:8em;"|Google<br>Search<br>backend
|Sprawling Excel spreadsheet<br>built up over 20 years by a<br>church group in Nebraska to<br>coordinate their scheduling
|}

{{comic discussion}}


[[Category:Charts]]
[[Category:Google Search]]
[[Category:Programming]]

Talk:1086: Eyelash Wish Log

2015-11-11T05:36:40Z

198.41.239.34:

This is one of my favorite xkcd comics ever. I can't stop laughing. #TEBOWTIME 17:14, 17 August 2012 (UTC)
: i know right?? feb. 27th is by far the best... [[User:Douglasadams472|Douglasadams472]] ([[User talk:Douglasadams472|talk]]) 03:12, 16 December 2012 (UTC)

: It seems to me that February 6th's wish implies that, as a result of the previous day's wish, he now has an absurdly large number of eyelashes. Opinions? [[User:Bobidou23|Bobidou23]] ([[User talk:Bobidou23|talk]]) 02:58, 26 May 2013 (UTC)

: I thought of Black Hat having a crazy number of eyelashes, but not attached to him, so he can't pull them for a wish. They're just in a pile on the floor or something. {{unsigned ip|173.245.56.187}}

I feel that each wish should be thoroughly explained, or at least briefly mentioned. {{unsigned ip|108.162.238.193}}
: +1, Marking this 'incomplete' [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]]) 20:09, 7 July 2014 (UTC)

March 15 may reference a painting of M.C. Escher so named "House of Stairs" [[Special:Contributions/199.27.128.79|199.27.128.79]] 08:19, 8 March 2014 (UTC)

:"Revocation of rules" and especially "meta-wishes" must be references to [http://amberbaldet.com/uploads/little-harmonic-labrynth.html "Typeless Wish" scene in Göedel, Escher, Bach]. "banish people into the TV show they're talking about" might(?) also reference the plot there where Achiles and Tortoise enter Escher's Convex and Concave painting after discussing it. Surpsingly to me, that episode's only Escher illustrations are Concave and Convex & Reptiles; House of Stairs does not appear anywhere in the book. [[User:Cben|Cben]] ([[User talk:Cben|talk]]) 00:48, 9 September 2014 (UTC)

What did "zero wishes" mean? [[Special:Contributions/173.245.48.86|173.245.48.86]] 18:16, 2 April 2014 (UTC)
:Often when configuring software (especially regarding limits) 0 is taken to mean infinite, for example in a mail server's config file there may be an entry that looks like "Max number of connections: (enter 0 for unlimited)" [[Special:Contributions/141.101.98.170|141.101.98.170]] 19:24, 7 July 2014 (UTC)

:My take on "zero wishes", is that it is a bit of black hattery. He wants to abuse any system he finds, by asking for zero wishes he wants to cause the eyelash wish system to crash in some way. Its not an attempt to gain more wishes, its an attempt to bring the wish system down.[[Special:Contributions/141.101.98.165|141.101.98.165]] 21:16, 8 July 2014 (UTC)

My take on the title text was that Black Hat wanted to alter friction for his own amusement, rather than to affect the outcome of a sporting event as the current explanation seems to lean towards.--[[User:Pudder|Pudder]] ([[User talk:Pudder|talk]]) 12:32, 28 August 2014 (UTC)

Agreed. It is very in-characcter for Black Hat to simply want to mess with people, and would be very out of place to care about such trivialities as points. Ima change the mouseover description now.[[Special:Contributions/173.245.48.97|173.245.48.97]] 16:18, 22 May 2015 (UTC)

I took the April 22 wish to mean that Black Hat would have a Pokeball that works in real life, allowing him to steal the pets of random strangers on the street.[[Special:Contributions/173.245.52.124|173.245.52.124]] 23:34, 27 May 2015 (UTC)
:"Hey! No stealing another Trainer's Pokémon!". Also, talk of changing friction coefficients reminds me of the GTA "Carmageddon" videos, where the wheel friction on all the cars was set to -1, leading to most of the game being filled with cars flying through the air and exploding. -Pennpenn [[Special:Contributions/108.162.250.162|108.162.250.162]] 23:30, 13 August 2015 (UTC)
::I may have used my Masterball trying to catch another trainer's Pokemon. I cracked up after it failed, but now I have no Masterball. :(

Talk:777: Pore Strips

2015-10-14T04:49:05Z

198.41.239.34:

[http://www.youtube.com/watch?v=gq7MvLgxSB4 Cyriak reference?] --[[User:Jiří Dobrý|Jiří Dobrý]] ([[User talk:Jiří Dobrý|talk]]) 10:52, 18 November 2013 (UTC)

I'm not sure because I can't quite see, but I think the strip just pulled out his skull, leaving his skin. This also makes more sense considering the labels on the box. If this is true, someone needs to fix the explanation. [[User:Athang|Athang]] ([[User talk:Athang|talk]]) 22:29, 1 May 2014 (UTC)
:Done. [[Special:Contributions/108.162.237.218|108.162.237.218]] 08:19, 7 May 2014 (UTC)

Please be aware that the little dark spots on your nose (the ones that all look the same size with no obvious swelling) are supposed to be there, they aren't dirt or an infection, and using pore strips to remove them won't help, and they come back anyway. -Pennpenn [[Special:Contributions/108.162.250.162|108.162.250.162]] 04:22, 13 August 2015 (UTC)

Title text explanation? -dudinacas