explain xkcd - User contributions [en]

2015: New Phone Thread

2018-07-04T18:23:09Z

108.162.219.130: /* Explanation */

{{comic
| number = 2015
| date = July 4, 2018
| title = New Phone Thread
| image = new_phone_thread.png
| titletext = I'm going to tell the manufacturer that their business practices are ADMIRABLE and ETHICAL and their developers are ATTRACTIVE and I'm going to report them to the FCC for their IMPECCABLE VIRTUE.
}}

==Explanation==
{{incomplete|Created by a YOU SHOULD DONATE TO EXPLAINXKCD - The transcript may be interesting, but as part of the explanation. In the transcript there should be no explanation but only the text and info about how it is written! Do NOT delete this tag too soon.}}

This comic shows the posts on an online forum by a person whose new phone is editing everything negative they post about the phone to seem positive, thereby advertizing their new phone. This is evident by the posts "some of my posts look normal", which is not something a person would highlight if all their posts truly looked normal, and "It's taking the words I type and leaving them exactly the same". It is much more likely the person typed "It's taking the words I type and changing them to advertise the phone", which the phone converted.

This is hinted at more strongly in the title text where the changed words are marked in all caps.

==Transcript (including the text that may have been changed)==
{{incomplete transcript|The explanation part should not be part of the transcript, but it is relevant so somehow it should have a section in the explanation.}}

(with italics to show which parts of the post were most likely edited by the phone; example of original text is given in square brackets, assuming that the phone changes negative descriptions to approximate antonyms)

Whoa, weird

I'm looking at my timeline on my friends phone, and some of my posts look ''normal'' [strange]

What the hell?

I mean the words are ''correct'' [wrong]

That's ''exactly'' [the opposite of] what I typed!

?????????

I think this new phone is ''working really well'' [broken]

No, it's doing it again

Those ''are'' [aren't] my words!

Help!

How do I explain?

It's taking the words I type and ''leaving them exactly the same'' [changing them to the opposite]

Forget it, I give up

I'll ''never'' [have to] get a new phone. This one is ''perfect'' [messed up].

What?!?

Listen, if you're thinking about buying the new Mobile Pro 3, you ''should. It's the best phone on the market at an incredible price. ORDER NOW'' [better think again. It's a total rip-off and a complete waste of your money. DON'T BUY IT]

AAAAA HELPPP

I ''love'' [hate] my new phone!!!!

==Transcript==

Whoa, weird

I'm looking at my timeline on my friends phone, and some of my posts look normal

What the hell?

I mean the words are correct

That's exactly what I typed!

?????????

I think this new phone is working really well

No, it's doing it again

Those are my words!

Help!

How do I explain?

It's taking the words I type and leaving them exactly the same

Forget it, I give up

I'll never get a new phone. This one is perfect.

What?!?

Listen, if you're thinking about buying the new Mobile Pro 3, you should. It's the best phone on the market at an incredible price. ORDER NOW

AAAAA HELPPP

I love my new phone!!!!

{{comic discussion}}

Talk:2002: LeBron James and Stephen Curry

2018-06-04T16:08:47Z

108.162.219.130:

I have no idea what this is about, but wondered if Stephen Curry was related to the Curry twins Tom and Ben, who are both over 6' - or to Tim, who isn't except in heels.
[[User:Arachrah|Arachrah]] ([[User talk:Arachrah|talk]]) 07:53, 4 June 2018 (UTC)
: Both LeBron James and Stephen Curry are famous NBA players. [[Special:Contributions/172.69.190.4|172.69.190.4]] 08:46, 4 June 2018 (UTC)
::How would you not know that? And even if you don't know who they are, you must have at least heard about them before, right? [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 09:21, 4 June 2018 (UTC)
::: Not everyone is from USA. [[Special:Contributions/172.69.190.4|172.69.190.4]] 09:41, 4 June 2018 (UTC)
:::: That excuse could work, except your IP address is based in the USA :) [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 12:01, 4 June 2018 (UTC)
::::: So is mine right now, but that doesn't mean I'm '''from''' here, and they didn't make us memorise every NBA player on the plane. (Hey cool, this IP has edited here before too) -[[Special:Contributions/162.158.186.60|162.158.186.60]] 15:36, 4 June 2018 (UTC)

::: I like Curry. You know, the dish. And the actor. Tim, that is. [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 11:58, 4 June 2018 (UTC)
Not everyone in the USA follows sports. I've heard of LeBron James, but only in passing. The only Curry I know of is a fictional one from some old movie.
;Nate Silver

Nate Silver is famous for his numerical approach and extensive use of statistics and simulations.
He foresaw a probability of 28.6% for Donald to win the electoral college just before the election. That is a greater chance than most political commentators would have granted Donald. Typical betting sites saw Hillary 5:1 ahead at the evening of the election.
So I would not at all say that he got everything wrong in 2016. He predicted that Hillary would be a formidable number of votes ahead as most probable outcome, but also that many states would be very tight.
[[https://projects.fivethirtyeight.com/2016-election-forecast/]]. Sebastian --[[Special:Contributions/172.68.110.106|172.68.110.106]] 09:21, 4 June 2018 (UTC)

;Definitions needed
Hi! Could definitions be added for some of the terms used, such as "bleachers"? Thanks! [[Special:Contributions/162.158.155.200|162.158.155.200]] 11:30, 4 June 2018 (UTC)

;Magnetic North
I would have liked the "magnetic north" thing to be due to the geographical orientation of the teams home courts (if the Cavaliers are the only team to have a court that happens to be roughly north-south oriented, it would explain the higher points value). Looking at the Stupid Name Arena, however, it appears that the court inside is probably about NW-SE. Too bad. [[User:Chrullrich|Chrullrich]] ([[User talk:Chrullrich|talk]]) 14:15, 4 June 2018 (UTC)

;SSN to Free Throw%
Would it be too much of a stretch to add in the fact that Stephen Curry's point is highlighted on the chart, as a nod to the fact that (the majority of) one's SSN can actually be determined if one knows details about personal information such as where one was born? [[Special:Contributions/108.162.219.130|108.162.219.130]] 16:08, 4 June 2018 (UTC)

1738: Moon Shapes

2018-06-01T12:53:40Z

108.162.219.130: /* Explanation */

{{comic
| number = 1738
| date = September 26, 2016
| title = Moon Shapes
| image = moon_shapes.png
| titletext = Whenever I see a picture of the moon where the points go more than halfway around, I assume it's being eclipsed by one of those Independence Day ships and interpret the rest of the image in light of that.
}}

==Explanation==
The Earth's {{w|Moon}}, being the most prominent object in the night sky, is a frequent subject of art; particularly art depicting a nighttime scene. Unfortunately, the moon often appears in works of art in ways that are very dramatic and would not be realistically possible. It may be done out of ignorance, or knowingly by taking {{w|artistic license}}. As someone interested in and who has worked in astronomy, this likely bothers [[Randall]].

The Moon is well known to have "{{w|lunar phase|phases}}" describing what portion of the visible surface of the moon is illuminated by sunlight and highly visible, and what portion is dark, and generally only slightly visible when the moon appears while the sun is also up. These phases progress between "New" (when the surface facing the Earth is completely dark) and "Full" (when the surface facing the Earth is completely illuminated, appearing as a full disk as viewed from Earth). Mid-way between those extreme phases is a "Quarter" Moon, when exactly one-half of the surface facing Earth is completely dark - at this point the Moon is a quarter of the way in its cycle from the New Moon, either one quarter of the way into it ("First" Quarter) or a quarter of the way from completing it ("Last" Quarter).

Because the Moon is approximately spherical, its illuminated side appears as "crescent" in shape as it progresses from New to First Quarter phase. As it progresses from First Quarter to Full phase, observers on Earth see a Waxing "[https://en.wiktionary.org/wiki/gibbous Gibbous] Moon (which just means that the dark portion has formed a crescent). One can imagine this like a globe on which you draw a straight line from the north pole to the south pole down the center of the side facing you (appearing to create two semi-circles); upon rotating the globe, the line would become rounded as it moved away creating a crescent on the side the line was moved towards. Because of the geometry involved, a line connecting the two points (horns) of a Crescent Moon (or of the darkened crescent inverse of a Gibbous Moon) must be a diameter of the moon (i.e. it must pass through the center of the circle).

The deliberate misidentification of a Waxing Gibbous Moon ("waxing" means going from new to full; that is increasing in illuminated area) as a "wax gibbon" (a Southeast Asian ape made of a nonpolar solid) is a source of humor in this comic. This is probably a reference to H.P. Lovecraft, who had several of his stories take place under "a gibbous moon" for dramatic effect, or even more likely a reference to the {{w|Discworld}} by {{w|Terry Pratchett}}, often referenced in xkcd (as in [[1498: Terry Pratchett]]). In the witch series the Gibbous Moon is mentioned several times as the most magic, rather than the more often used Crescent or Full Moon.

Further, because the light portion of the Moon is illuminated by sunlight (whether or not the Moon is in the sky at the same time as the Sun), the light side of the Moon will always be facing towards the Sun. If the Moon is in the night sky, the Sun must be somewhere "below" the horizon on the other side of the Earth. Thus, at night, the light portion of the Moon must always be on the half of the Moon that faces the horizon (there are points during the daytime when the orientation can go the other way); however, because of the [http://www.seas.upenn.edu/~amyers/MoonPaper20June.pdf moon tilt illusion] it is possible for the light portion of the moon to appear to point up. The [https://www.academia.edu/7848972/THE_MOON_TILT_ILLUSION moon tilt illusion] is generally not as severe and may only last a few hours after sunset.

It is worth noting that while the Moon's dark portion blends imperceptibly with the dark night sky, it is still a solid body. Therefore it would be impossible to see more distant objects such as stars "through" the dark portion of the Moon's circumference. This is most dramatically exemplified by a {{w|solar eclipse}} during which the Moon passes in front of the Sun and is therefore completely dark (the Sun is lighting only the far side), but the Moon's circumference still blocks a circular portion of the Sun's light. Therefore, if we were to see any lights in the part of the sky the dark side of the Moon blocks, they would need to be from sources between us and the Moon's surface, such as a nuclear war on the moon.

This comic lists some of the some common mistakes. In some cases, a depiction may be unrealistic in multiple ways - for example, the {{w|Flag of Tunisia}} has both unrealistic horns and a star visible between the horns, while {{w|File:Moon tarot charles6.jpg|the Charles VI tarot}} shows a Moon with over-long horns pointing towards the horizon.

In the title text, Randall is referring to the movie "{{w|Independence Day (1996 film)|Independence Day}}" and how one of the alien's ships (in the movie) 'eclipses' part of the Moon. He says that if the points go halfway or longer around the Moon, then he imagines it's caused by an alien ship and interprets the entire piece of art in that context (i.e. aliens are about to attack those shepherds!).

==Table of the images==
{| class="wikitable"
|+Explanation of individual items in the list
!#
!Image
!Shape
!Rating
!Text
!Explanation
!Examples
|-
|1 || [[File:moon1.jpg]]|| Full moon || Normal || rowspan="3" | "Full" or "Quarter" or "Harvest" or "Wax Gibbon" or whatever || Reality. The full moon cannot really be drawn incorrectly, and will look like this whenever it is up at night. ||
|-
|2 ||[[File:moon2.jpg]]|| Gibbous moon || Normal || Reality, as in this is how one of the moon's phases looks on a normal basis. ||
|-
|3 ||[[File:moon4a.jpg]]|| Crescent moon with horns away from horizon || Normal || Reality, as in this is how one of the moon's phases looks on a normal basis. ||
|-
|4 ||[[File:moon3.jpg]]|| Crescent moon with horns towards horizon || Not normal || Not possible at night || This can only happen when the sun is above the horizon. Since a crescent moon means that the Sun and the Moon are relatively close in the sky, the Moon would not be visible with a naked eye, its light completely outshone by the sunlight. Randall comments that this is possible only during the daytime, marking it wrong as the background would not be black. According to this [https://en.wikipedia.org/wiki/Lunar_phase#/media/File:Moon_phases_en.jpg image] on Wikipedia's article on {{w|lunar phase}} "Phases of the Moon, as seen looking southward from the {{w|northern hemisphere}}. The {{w|southern hemisphere}} will see each phase rotated through 180°". This might seem to indicate that shape #3, which is visible in for instance USA where Randall lives should be seen like #4 in the southern part of South America, also at night! However, because the light portion of the moon is illuminated by sunlight (whether or not the moon is in the sky at the same time as the sun), the light side of the moon will always be facing towards the sun. If the moon is in the night sky, the sun must be somewhere "below" the horizon on the other side of the Earth. Thus, at night, the light portion of the moon must always be on the half of the moon that faces the horizon; However, in the case of twilight after sunset and shortly after (like the example painting), due to the [https://www.academia.edu/7848972/THE_MOON_TILT_ILLUSION moon tilt][http://www.seas.upenn.edu/~amyers/MoonPaper20June.pdf illusion] the bright side of the moon may appear to point up relative to an observer on the ground (although not to the extent show in the comic). But as the text from Randall points out there can be times during daytime when the orientation can go the other way. But then the background should not be black. Originally Randall wrote a different (wrong) sentence here and then corrected to the one currently explained, see [[#Trivia|trivia]] below.|| Van Gogh, {{w|File:Van Gogh - Passeio ao Crepúsculo.jpg|Landscape with Couple Walking and Crescent Moon}}
|-
|5 ||[[File:moon5a.jpg]]|| Wide crescent-like moon where the horns don't connect through a diameter || Not normal|| rowspan="2" | Only possible during a lunar eclipse (#1 only, dubious) or a solar eclipse (bright part is the Sun) || This is only possible during a partial solar eclipse or the start of an annular eclipse (in which cases the lit portion is not the moon, but the sun), or else if the Earth is casting its partial shadow on the Moon, a penumbral lunar eclipse. Randall labels the lunar eclipse "dubious", since the shadow during penumbral eclipse would be much lighter than shown here, in fact barely visible as a slight darkening of the Moon's surface. The Earth's shadow, being very large, would also likely cast a less-rounded edge than depicted here. ||
|-
|6 ||[[File:moon6.jpg]]|| Narrow crescent-like moon where the points don't connect through a diameter || Not normal || This situation is even harder to create than the previous one - unlike the previous example, here the diameter of the entire shadow is clear, and is too small for the Earth's shadow in a lunar eclipse. A huge ''Independence Day'' spaceship (as per the Title text) might be the right size. It does however resemble a partial {{w|annular eclipse}} if you imagine that the black area is the moon covering up the white sun. || {{w|File:AlcoholicBluesCoverVonTilze.jpg|Alcoholic Blues}}. Van Gogh, {{w|File:Van Gogh - Starry Night - Google Art Project.jpg|Starry Night}}, but turned the other way.
|-
|7 ||[[File:moon7.jpg]]|| Crescent moon blocking stars|| Normal || Looks OK || Reality (as in image 3) with stars shown around the moon, but not any inside the sphere of the sky that would be blocked by the dark (but still present) side of the moon. (See [[#Trivia|trivia]] below though). ||
|-
|8 ||[[File:moon8.jpg]]|| Crescent moon with stars between horns || Not normal || There's either a hole in the Moon or a nuclear war on its surface || Many people (including artists) seem to forget that the dark portion of the moon is still a solid object that we can not see through.[http://imgur.com/S30fuOj][https://s-media-cache-ak0.pinimg.com/236x/a7/7d/4a/a77d4ae9e3549e36edd350246d33700c.jpg] If stars are visible, there are either one or more holes in the moon, or the light-source is actually on the moon, such as nuclear explosions. As the {{w|Star and Crescent}}, the image is sometimes considered a symbol of Islam, although it's relatively recent and there's no traditional basis for putting the star ''between'' the horns - as originally used on the Flag of Turkey, the star appears in a realistic position. The flags of Algeria, Tunisia and some other countries show the star in the dark part of the moon. In the first Edwin Blashfield, {{w|File:Edwin Blashfield - Spring Scattering Stars.jpg|Spring Scattering Stars}} a God is standing on the moon throwing stars down, but then these stars are actually in front of the moon and are good. Nothing in the image suggest that stars can be seen through the dark part of the moon. Also the {{w|DreamWorks Animation}} logo shows no stars. Although both show persons sitting on the seal, this is thus also clearly not an effort to make it look real. But in neither case stars can be seen in the moon. This is also the case for the live [https://youtu.be/xPpy8mYHQps?t=11 DreamWorks logo from movies]. Here there are stars in the background but they are not inside the moon as [http://www.explainxkcd.com/wiki/images/f/f5/1738_Moon_Shapes_DreamWorks_logo_With_Moon_Circle.PNG can be seen here]. || An example can be found in the [http://www.explainxkcd.com/wiki/images/2/26/1738_Moon_Shapes_Mole_Car_Moon_With_Stars_Inside.png image on the last page] of [https://www.amazon.co.uk/How-mole-got-his-car/dp/B0000CKRB4 How mole got his car] with the {{w|Mole (Zdeněk Miler character)|Mole}} from the carton series by {{w|Zdeněk Miler}}. This is not just showing the stars inside from the last shape, but also the type of moon shown in the sixth image.
|}

==Transcript==
:[Caption above the panel:]
:'''Interpreting the shape of the moon in art'''
:[The left part of the panel shows a two column chart is shown with labels above the columns. The left side shows the moons shape as white on a black square. These types of moons could be seen in certain art pieces. The right side saying whether this is normal or not as indicated with a green check mark or a red X. Right of the second column there are explanations of why the specific type of moon is marked as it is and what it could be called or how it could be possible even with the red X. The upper three moons have one common explanation as indicated with a bracket that covers all three with the text on the middle part of the bracket. Similarly moon five and six also have a bracket and only one explanation.]
:Shape Normal?

:[Shape #1-3 shows a white circle (full moon), a more than half full moon (Gibbon) and a thin seal at the bottom right of the square.]
:<big>✓</big>
:<big>✓</big> "Full" or "Quarter" or "Harvest" or "Wax Gibbon" or whatever
:<big>✓</big>

:[Shape #4 same as #3 but with the seal in the upper part of the square.]
:<big>X</big> Not possible at night

:[Shape #5-6 shows a full moon with a circular section taken out of the right side and a seal that goes almost all the way around the circumference of the moon with almost a full circle taken out of the top left part of the moon.]
:<big>X</big>
:<big>X</big> Only possible during a lunar eclipse (#1 only, dubious) or a solar eclipse (bright part is the Sun)

:[Shape #7 same as #3 but with the seal a little smaller and more to the top and less to the left. Around the moon there are several starts represented with 29 small white dots. In the center of the black square there is a black circle, coinciding with the outer rim of the seal. Within this circle (the dark side of the moon) there are no stars!]
:<big>✓</big> Looks OK

:[Shape #8 same as #7 but apart from the 29 small white dots from before there are now also 6 more dots inside the dark circle with no stars in #7.]
:<big>X</big> There's either a hole in the Moon or a nuclear war on its surface.

==Trivia==
* [[Randall]] changed the text for the fourth moon shape the next day from "Only possible during a solar eclipse" to "Not possible at night".
** The original can be found [https://web.archive.org/web/20160926101411/http://xkcd.com/1738/ here].
* [[File:moon7a.jpg]] The image of the crescent moon blocking the stars is slightly wrong, because there are still lights on the surface of the moon.

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Charts]]
[[Category:Fiction]] 
[[Category:Astronomy]]

1920: Emoji Sports

2017-11-24T16:11:29Z

108.162.219.130: /* Explanation */

{{comic
| number = 1920
| date = November 24, 2017
| title = Emoji Sports
| image = emoji_sports.png
| titletext = No horse has yet managed the elusive Quadruple Crown—winning the Kentucky Derby, the Preakness, the Belmont Stakes, and the Missouri Horse Hole.
}}

==Explanation==
{{incomplete|Missing title text explanation - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

{| class="wikitable"
!Emoji
!Sport
!Description
|-
|🤽🌋
|Lavaball
|Throwing a ball into the an active volcano would quickly end the game
|-
|🤾‍♀️🤺
|Bladeball
|Would also lead to the quick destruction of the ball
|-
|💃💃⚽
|Fancyball
|It would be difficult to kick a giant football while wearing high heels (though possible with a normal sized one: https://www.youtube.com/watch?v=0GykP0XsLIA)
|-
|🕳️🏇🏇🏇
|Horse hole
|Horses might not cooperate or be serious injured when raced into a large hole. Not to be confused with horse golf, which is one way of describing polo.
|-
|🔪🏀⛏️
|Basketball Shredding
|Another sport which would be destructive on the equipment
|-
|🥚🔭🕵️‍♀️
|Eggspotting
|This could be a combination of {{w|Egg_hunt|egg hunting}} and {{w|birdwatching}}. A popular sport on Pinterest
|-
|⛷️🐊
|Alligator Jumping
|Fast paced and popular spectator sport but limited season when both snow and alligators are readily available. This is actually a crocodile emoji. Not to be confused with "jumping the shark".
|-
|👩🎣🧜‍♂️
|Merfishing
|You probably won't catch a lot when fishing for {{w|Mermaid|mermaids}}.
|-
|👨🏸🧚🏸👩
|Tinkerball
|Playing badminton with a fairy, named after [[wikipedia:Tinker Bell|Tinker Bell]]
|-
|🥌🦔🥌
|Hedgehog Curling
|Hedgehogs are generally perfectly capable of curling without assistance (although they may get stuck on the ice)
|-
|🗜️🍔
|Burger Clamping
|
|-
|👩‍🚀🏹🛰️
|Consequence archery
|Archery on a space station would lead to the decompression of the space station, and necessitate the evacuation of the astronauts aboard.
|-
|🦉➡️📬
|Owlstuffing
|Although the flag is up, the mailbox seems to be missing mail. Possible reference to Harry Potter owls carrying mails.
|-
|🍴🕯️🍴
|Candle Eating
|An unhealthy form of {{w|competitive eating}}. Eating large amounts of candle wax can cause {{w|Bowel_obstruction|intestinal obstruction}}.
|-
|⛳💣🏌️‍♀️
|Consequence Golf
|Rather than rewarding hole-in-ones, heavily punishes their absence. Also, would seriously damage the golf course.
|-
|👉🐍👈
|Snake Shaming
|Probably a play on snake charming. Also a possible reference to the biblical story where the snake is shamed for deceiving mankind by being doomed to crawl on its belly.
|-
|🔥🧗‍♀️🔥
|Hell Escape
|Trying to escape the {{w|lake of fire}} is the pastime of damned souls.
|-
|🎮🥑🎮
|Multiplayer Avocado
|May lead to guacamole. Very different from the adult version, multiplayer eggplant.
|}

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

{{comic discussion}}

1807: Listening

2017-03-06T19:49:40Z

108.162.219.130: /* Explanation */

{{comic
| number = 1807
| date = March 6, 2017
| title = Listening
| image = listening.png
| titletext = Sure, you could just ask, but this also takes care of the host gift thing.
}}

==Explanation==
{{incomplete|stub, do NOT remove this tag too fast.}}
This comic depicts [[Cueball]] and [[Ponytail]] welcoming [[Black Hat]] and [[Danish]] to their house. Black Hat immediately talks to {{w|Amazon Alexa}} to order two tons of {{w|creamed corn}}. This would be quite expensive, and the hosts would be charged because it was ordered on their {{w|Amazon Echo}} device. It would also be a serious inconvenience, as the purchase would be quite bulky, as well as useless (no one needs that much creamed corn {{Citation needed}}).

This may be a reference to the recent [http://www.npr.org/2016/12/31/507670072/amazon-echo-murder-case-renews-privacy-questions-prompted-by-our-digital-footpri court case] where authorities believed that an Amazon Echo may have recorded the identity of a murder suspect, leading to a debate about the privacy and safety implications of such devices.

The caption claims that this is an effort to find systems recording conversations, such as Alexa or {{w|Google Home}}, to punish the hosts for having these services on.

However, this tactic may be flawed, as you can choose to have a PIN to confirm the order. If Black Hat does not know their PIN, this would not actually order the corn. Black Hat would succeed, however, in finding an Alexa. Knowing Black Hat, he or Danish would be likely to (at least attempt to) find the PIN beforehand.

The title text says that this takes care of the "host gift thing," where the guests are intended to buy something for the hosts. However, Black Hat is making the hosts pay for it, so it can be as expensive as he wants, thus making this yet another example of his being a [[classhole]].

==Transcript==
{{incomplete transcript|Needs review.}}
:[Black Hat and Danish are entering in to Cueball and Ponytail's house]
:Ponytail: Hello, welcome to our house!
:Black Hat: Thanks for inviting us!
:Black Hat: Alexa, order two tons of creamed corn.
:Black Hat: Alexa, confirm purchase.

:[Caption below the frame:]
:When visiting a new house, it's good to check whether they have an always-on device transmitting your conversations somewhere.

==Trivia==
*Assuming a standard 14.75 oz can and Black Hat's order was in short tons the order would consist of 4348 cans. Consuming one per day it would last for approx. twelve years. But it's doubtful that the expiry date would be that long.

{{comic discussion}}

[[Category:Comics featuring Black Hat]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Danish]]

795: Conditional Risk

2017-02-14T05:39:06Z

108.162.219.130:

{{comic
| number = 795
| date = September 20, 2010
| title = Conditional Risk
| image = conditional_risk.png
| titletext = 'Dude, wait -- I'm not American! So my risk is basically zero!'
}}

==Explanation==
The comic deals with the difference between the general probability of a certain event based on history and the probability of the same event in particular circumstances. The chance of any American selected randomly from the general population to be killed by lightning is very low, but part of the reason for this is that an average American would seek shelter and safety when caught in a lightning storm. The joke is that someone armed with this particular statistical knowledge would not take the normal precautions and therefore leave themselves far more vulnerable.

In the title text, since the statistic provided talks only about Americans, the other character wrongly assumes that lightning strikes ''only'' happen to Americans, rather than the data for lightning strikes for other nationalities being simply not included in the discussion. Because of this, as a non-American, he believes his chance of being struck by lightning isnon-existent - which underlines the difference between knowing a certain event can't or didn't happen and not having any data about the event.

The "one in six" statistic is probably invented by the author - which also illuminates the danger of dealing with "statistical data" provided by random sources without any attribution to actual statistical surveys or hard data. And of course, now all xkcd readers know the statistic, likely bringing down the death rate.

==Transcript==
:[Lightning strikes the ground, illuminating trees with a bright white light. Two people are standing near it. One has a walking stick.]
:''CRACK''
:''BOOM''
:First person: Whoa! We should get inside!
:Second person: It's okay! Lightning only kills about 45 Americans a year, so the chances of dying are only one in 7,000,000. Let's go on!

:[Caption below the panel:]
:The annual death rate among people who know that statistic is one in six.

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Comics with inverted brightness]]
[[Category:Statistics]]

1796: Focus Knob

2017-02-09T02:22:21Z

108.162.219.130:

{{comic
| number = 1796
| date = February 8, 2017
| title = Focus Knob
| image = focus_knob.png
| titletext = Maybe if I spin it back and forth really fast I can do some kind of pulse-width modulation.
}}

==Explanation==
{{incomplete|Although e-mail details may be applicable to a work project, there is nothing to indicate that this is related to a project. It could just as well be a panic over the big picture of the world today. Alternative interpretation needed}}

The comic is a pun. Normally, a rotary {{w|control knob}} is used for adjusting parameters in instruments, and the parameter "focus" is used to adjust the {{w|focal length}} on microscopes, telescopes, and other lens-based equipment. Here, however, the "focus knob" is used for Randall's {{w|Attention|personal sense of focus}} -- that is, how focused he is on his work and productivity, with the extremes of focus being towards ''Detail-Oriented'' (small details) and the ''Big Picture'' respectively. (A similar knob was used in [[1620: Christmas Settings]]).

The healthy balance, Randall suggests, is focusing mostly towards the ''Big Picture'' (two thirds of the way towards the ''Big Picture'' between ticks 24 and 25 out of 37), while keeping an eye on the details by still staying one third ''Detail-Oriented''. Focusing too much on the big picture can ensure nothing gets done, leading to {{w|panic}} and {{w|Existential crisis|existential paralysis}}. Unfortunately, the range of healthy balance appears to be vanishingly small and difficult to reach; additionally, if we assume the knob can only stop at the little ticks marked along the outside, there is no way to set it in the window of ''Healthy Focus''.

While performing any task (including your daily life), it is easy to get so lost in the details that you forget the big picture. It is also equally easy to think too much about the big picture and make vague plans while missing out on the details.

It is clear that at the moment Randall is mainly focusing on the small details fiddling with his e-mail settings as the knob is set to the 13th tick only just past one third away from ''Detail-Oriented''. He thus seems to try to avoid seeing the big picture right now, since it is his personal knob to set as he wishes.

Existential crises stemming from Randall getting worried about realizing how serious the state of the world is today (at the time of the comics release) are a common punchline in xkcd. With all the crises going on around the world, people get bombarded with these negative stories if they follow the news, either on TV, in news papers of on any social media (See [[1773: Negativity]]), especially on Facebook (see [[1761: Blame]]). It can thus become very overwhelming, if people do not focus more on their e-mail settings! This goes especially in a time like this, where many panics on Facebook due to for instance wars and conflicts around the world (like in {{w|Syrian Civil War|Syria}}), talk about [[:Category:Climate change|climate change]], or all the {{w|List of executive actions by Donald Trump|executive orders}} currently being signed by the recently {{w|Inauguration of Donald Trump|inaugurated}} President {{w|Donald Trump}}, who took office less than three weeks before this comic's release. See more about these issues and other recently released [[1756:_I'm_With_Her#Sad_comics|sad comics here]].

Getting to deep into all this could cause the kind of panic attacks that could lead to the existential paralysis mentioned on the right side of the knob. It is these that Randall may be trying to avoid by keeping his focus firmly in the realm of e-mail settings rather than anywhere near the big picture.

In the title text, Randall imagines spinning the dial to and fro, causing {{w|pulse-width modulation}} (PWM), which is a technique often used to encode data in waves. This technique consists of shifting between a set of fixed values (often only 2 values) so that the average is the expected output. For example switching back and forth between 0 and 1, spending half the time in each position will lead to a mean value of 0.5. To code 0.67 (the ''healthy balance''), Randall would have to spend more time in the extreme big picture position (67% of the time) than in the detail-oriented position (or he could just switch between the two closest position (24 and 25) staying half in each of these) In this way, he could attempt to have an average of a healthy focus even if the knob cannot be set directly in that range.

One feature of this modulation is that the expected value is not actually reached by the signal before applying the low-pass filter (averaging), so using a PWM-like method would mean alternating between being too much and too little attention to detail to have an average on the healthy balance, but never actually reach it. As cool as the idea may sound, it is probably not very healthy.

==Transcript==
:[Caption above the drawing:]
:Personal Focus

:[A gray rotary control knob with the range of options divided by 37 small ticks on a black semi circle that extends over 270 degrees from 45 degrees past "6 o'clock" and around to 45 degrees before that "time" on the other side. The first and last tick are a bit larger than the other 35. The knob has a black line that indicates that the knob's setting is on the 13th line from left. This also seem to indicate that the knob can only point to the ticks and not in between them. At the bottom left and right where the semi circle begins and ends there are two labels in normal black text:]
:Left: Detail-Oriented
:Right: Big Picture

:[Above and all along the black semi circle with the range, another semi circle is drawn in light gray. This has been divided into three sections, with two large sections left and right forming the actual semi circle which here consist of two double ended arrows pointing to four stopping lines orthogonal to the gray arrows pointing at them. The left and right stopping lines are above the larger left and right end ticks below. The other two stops are very near each other, the left just slightly past the 24th tick (from left) and the next is just short of the next 25th tick (but not as near as the other line was to the 24th tick). There is no line or arrow between these two very close stopping lines. There are three labels. The labels for the first section (spanning slightly more than 24 ticks) and the second section (spanning a bit more 13 ticks) have their labels written next to the arrows, which has been broken in order to have the text written next to the black semi circle. The remaining small space lies between the 24th and 25th tick, and it thus have no possible settings within it - i.e. no tick is inside this section, and it is the only part not encompassed by the two double arrows. It is labeled to the right of it, and a line goes from the label down to indicate this small section. All the above including the text is drawn in the same light gray color. Note that Randall has misspelled "existential" in the right section label.]
:Left section: Fiddling with email settings
:Right section: Panic and existental paralysis
:Small section: Healthy balance

==Trivia==
*Randall has misspelled existential as ''existental'' with only one "i"!
**Maybe because of his paralysis (which he did manage to spell correctly).

{{comic discussion}}

[[Category:Charts]]

1787: Voice Commands

2017-01-18T23:00:22Z

108.162.219.130: /* Explanation */

{{comic
| number = 1787
| date = January 18, 2017
| title = Voice Commands
| image = voice_commands.png
| titletext = Dvorak words may sound hard to pronounce, but studies show they actually put less stress on the vocal chords.
}}

==Explanation==
The {{w|Dvorak_Simplified_Keyboard|Dvorak keyboard layout}} was designed to replace the {{w|QWERTY}} keyboard layout (the de facto standard keyboard layout in English-speaking countries, so named for the starting letters in the top row). The Dvorak layout was designed in the belief that it would significantly increase typing speeds over the QWERTY layout. This can be seen, among other ways, by the popular misconception that the placement of letters in the QWERTY standard were deliberately organized to limit typing speed in accommodation the tendency of original mechanical typewriters to jam if two adjacent keys were pressed in quick succession. (In fact, the original QWERTY layout was mostly random.)

Even as other arguably better layouts were proposed over the years since the introduction of the QWERTY keyboard, QWERTY remained the standard due to widespread use.

Using Dvorak for speech to text, however, makes no sense whatsoever as there is no keyboard, real, virtual, or otherwise, involved in speaking. Even the virtual keyboard (usually QWERTY layout but often changeable) included in most phones and tablet devices is not used when speaking to the phone.

The sentence Cueball tells his phone translates to "Okay Google send a text" - he says it as if he were typing the sentence on a Dvorak layout with the keyboard set to a QWERTY layout. How such words would be pronounced is a mystery, as the letters in the words are merely substituted with others with no regard to phonetics; without standardized pronunciations, a speech-to-text program would be useless. To add to the confusion, one of the words in Cueball's sentence includes an unpronounceable semi-colon as one of its letters.

The title text is a reference to the fact that many users of DVORAK keyboards claim they may be hard to learn, but they are more movement efficient and put less stress on your fingers due to less movement. For example, see the link at http://www.dvzine.org/zine/10-11.html . This makes little sense in the scenario set up by the comic, as speaking gibberish using oddly placed vowels would be equally difficult, if not in fact harder, on the vocal chords.

Using a Dvorak layout on a smartphone (for actual typing, not voice commands) is possible, but the very features that make it desirable in a physical touch-typing environment are drawbacks on a swipe-enabled keyboard. A placement designed to alternate a typist's left and right hands requires the finger of a swipist to travel back and forth across the keyboard more often. Fitting commonly-used letters onto the typist's home row reduces finger movement but makes many words the swipist enters indistinguishable. On a QWERTY swipe keyboard, four English words can be entered by swiping right to left from P to T: "pot", "pit", "put", and "pout"; however, setting the layout to Dvorak causes this to happen with many more common sets of words.

==Transcript==
[Ponytail and Cueball are standing looking at each other. Cueball is holding a phone.]

Ponytail: Can you text it to me?

Cueball: Sure!

Cueball: ''SVAT USSUPD ;DLH A KDBK''

Ponytail: ...What?

Phone: *BEEP*

[Caption under the panel:]

Setting my phone's speech recognition to Dvorak was a pain at first, but it's more efficient in the long run.

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Ponytail]]

1060: Crowdsourcing

2016-12-20T23:59:11Z

108.162.219.130: /* Explanation */

{{comic
| number = 1060
| date = May 25, 2012
| title = Crowdsourcing
| image = crowdsourcing.png
| titletext = We don't sell products; we sell the marketplace. And by 'sell the marketplace' we mean 'play shooters, sometimes for upwards of 20 hours straight.'
}}
==Explanation==
{{w|Crowdsourcing}} is the practice of obtaining needed services, ideas, or content by soliciting contributions from a large group of people, and especially from an online community, rather than from traditional employees or suppliers. In the new Internet economy, it is not uncommon for companies to rely on crowdsourced designs or ideas, to contract the marketing to another firm, or to interact with customers through social networks established by other companies.

[[Cueball]], however, is describing a business strategy which manages to do all three by "crowdsourcing" the process of getting a company and a prospective employee together. Cueball describes it as helping people with ideas find funding, similar to Kickstarter or Indiegogo, but rather than setting up a system to facilitate the process, he plans to use already-existing social networks (such as Facebook and Twitter). Effectively, by relying on outside support for all steps of the business plan, his company does nothing; however, because the parts of his strategy are all feasible separately, and because he describes them with a barrage of trendy buzzwords, his audience is impressed and fails to notice the company's essential pointlessness.

In the title text Cueball claims that "we don't sell a product, we sell the marketplace," a phrase that typically describes a company whose business model is to facilitate the business of other companies. However, this is revealed to be yet more empty buzzwords when Cueball clarifies that they don't actually do any work and instead play video games ("shooters" refer to first person shooters, a genre of video game).

==Transcript==
:[Cueball is standing in front of a flowchart on a wall, indicating with a pointer. A man and two women are looking on with interest. One woman holds a briefcase.]
:Cueball: We crowdsource the design process, allowing those with the best designs to connect—
:Cueball: via already-in-place social networking infrastructure—
:Cueball: with interested manufacturers, distributors, and marketers.

:Nobody caught on that our business plan didn't involve ''us'' in any way— it was just a description of other people making and selling products.

{{comic discussion}}
[[Category:Comics featuring Cueball]]

1060: Crowdsourcing

2016-12-20T23:43:01Z

108.162.219.130:

{{comic
| number = 1060
| date = May 25, 2012
| title = Crowdsourcing
| image = crowdsourcing.png
| titletext = We don't sell products; we sell the marketplace. And by 'sell the marketplace' we mean 'play shooters, sometimes for upwards of 20 hours straight.'
}}
==Explanation==
{{w|Crowdsourcing}} is the practice of obtaining needed services, ideas, or content by soliciting contributions from a large group of people, and especially from an online community, rather than from traditional employees or suppliers. [[Cueball]] "crowdsources" the process of getting a company and a prospective employee together. Cueball describes it as helping people with ideas find funding, much like Kickstarter or Patreon, but rather than setting up a system to facilitate the process, he plans to use already-existing social networks (such as Facebook and Twitter). If Cueball's company is crowdsourcing this matchmaking then he's allowing the people to find a company on their own merit, his company is not involved in the process at all. Cueball seems to be describing this process with buzz-words to impress a group of people who could themselves be businesspeople.

In the title text Cueball states that instead of doing any work they play video games, "shooters" refer to first person shooters, for hours on end.

==Transcript==
:[Cueball is standing in front of a flowchart on a wall, indicating with a pointer. A man and two women are looking on with interest. One woman holds a briefcase.]
:Cueball: We crowdsource the design process, allowing those with the best designs to connect—
:Cueball: via already-in-place social networking infrastructure—
:Cueball: with interested manufacturers, distributors, and marketers.

:Nobody caught on that our business plan didn't involve ''us'' in any way— it was just a description of other people making and selling products.

{{comic discussion}}
[[Category:Comics featuring Cueball]]

1238: Enlightenment

2015-06-26T01:54:22Z

108.162.219.130: /* Explanation */ heabily->heavily

{{comic
| number = 1238
| date = July 15, 2013
| title = Enlightenment
| image = enlightenment.png
| titletext = But the rules of writing are like magic spells. If you never acquire them, then not using them says nothing.
}}

==Explanation==
This comic is a reference to a scene from {{w|Star Wars Episode I: The Phantom Menace}} in which {{w|Yoda}} expresses doubt in a young {{w|Anakin Skywalker|Anakin}}'s potential to join the {{w|Jedi}} order. Yoda delivers a speech similar to the one that [[Ponytail]] gives here, except that the end of the sequence he presents is "{{w|Dark side (Star Wars)|the dark side}}" instead of "being an asshole". Yoda is ultimately correct; Anakin's fears lead him to join the dark side so that he may keep his loved ones from dying; this is at the expense of the stability of the galaxy, however, and his actions are in vain, as {{w|Padmé Amidala|his wife}} dies nonetheless. The circle on the ground is also taken from the ''Star Wars'' scene, and [[Cueball]] is presumably in the {{w|Mace Windu}} role.

Here, [[Randall]] compares Anakin's decision to join the dark side to the propensity of many Internet commenters to correct others on their spelling and grammar, and to the extreme prevalence of criticism over commendation or confirmation. Randall's point is that correcting people, like joining the dark side, ultimately stems from insecurity.

Ponytail and Cueball challenge [[Megan]] to type the sentence "I heard you're idea's and their definately good", which contains four {{w|Commonly misspelled words|common misspellings}} (''{{w|wikt:you're|you''''re'''}}'' instead of ''{{w|wikt:your|you'''r'''}}'', ''{{w|possessive|idea'''''''s}}'' instead of ''{{w|wikt:ideas|ideas}}'' [see {{w|greengrocers' apostrophe}}], ''{{w|wikt:their|the'''ir'''}}'' instead of ''{{w|wikt:they're|the'''y're'''}}'', and ''{{w|wikt:definately|defin'''a'''tely}}'' instead of ''{{w|wikt:definitely|defin'''i'''tely}}'').
Regarding the content, this sentence is one that is highly unlikely to be ever read in an internet argument, as almost every time people still have things they claim to know better about.
Megan thus can't bring herself to typing this sentence, having spent so much time judging others for their trivial errors, even when they're saying helpful things like the sentence in question. Instead, it is heavily suggested and implied that she smashes the computer and runs away — demonstrating the sort of anger that [http://www.urbandictionary.com/define.php?term=Grammar%20Nazi "Grammar Nazis"] and internet wiseacres like her can feel about punctuation and spelling errors, and about content-related errors respectively. Cueball and Ponytail remark on this, both failing to use {{w|apostrophe}}s.

The title text specifically refers to {{w|Terry Pratchett}}'s novel {{w|Equal Rites}}, in which the characters discover that the most powerful magic is not using magic — with the distinction that not using magic because you don't know how is not the same as choosing to refrain from using magic when you do know how. Randall is comparing this with use or misuse of the rules of Standard English: not even knowing the rules is not admirable, whereas knowing the rules but choosing to disregard them is.

==Transcript==
:[The two Internet Bodhisattvas Ponytail and Cueball lecture Megan encircled by a wheel placed upon the ground.]
:Ponytail: To achieve '''internet enlightenment''', you must free yourself from insecurity.
:Megan: But insecurity keeps me humble!
:Ponytail: No. Insecurity leads to conceit. Conceit leads to judgment. Judgment leads to being an asshole.
:[A laptop is placed on a stand in front of Megan.]
:Megan: I'm ready. How do I begin?
:Ponytail: Type this sentence.
:[White text on black background.]
:I heard you're idea's and their definately good.
:[The laptop has been smashed to the floor. The circle, once full of hope and excitement, is now full of despair and no Megan.]
:Ponytail: She wasnt ready.
:Cueball: Its a difficult road.

{{comic discussion}}
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:Internet]]
[[Category:Language]]
[[Category:Star Wars]]