Editing 521: 2008 Christmas Special

'''Panel 3:''' Dissatisfied with her work, Megan is thinking about alternative ways to improve her light arrangement. The idea of firing {{w|Sodium}} pellets into snow is probably a bad one, as Sodium reacts exothermically with water and may, in large amounts, induce explosions.

'''Panel 5:''' Probably still obsessed with creating a large and impressive light display, Megan has constructed an electronic device with an {{w|Arduino}} processor, perhaps to make the light chain show patterns. However, the energy she used was too high, causing one of the control boards to sublimate – go directly from a solid to a gaseous state without an intermediate liquid phase. She then wishes she could make the system self-repairing.

'''Panel 7:''' Megan's device has developed {{w|artificial intelligence}}, allowing it to feel. This is presumably a result of Megan attempting to make the device self-repairing. This common trope in science-fiction works usually leads to the system's attempt to eradicate its creator. [[Cueball]] attributes the emergence of a personality to the awesome ease and power of programming in {{w|Python (programming language)|Python}}.

'''Panel 11:''' Out of context, this panel introduces the idea of {{w|Santa Claus}} being a {{w|Muslim}}. This may be a reference to the persistent Internet rumours that Barack Obama is a Muslim, though he declares himself to be a Christian. However, the statement could also relate to the fact that Santa Claus is usually displayed with a large beard, which is sometimes also sported by conservative Muslims. Or it could just be nonsensical.

'''Panel 13:''' At this point, the self-aware Christmas light control systems have released {{w|cyborgs}} that tried to kill Megan and Cueball. To repel the cyborgs, they have cloned {{w|Velociraptors}}. Cueball expresses doubt about whether that was a good idea. Velociraptors appear frequently in xkcd, as seen in [https://www.explainxkcd.com/wiki/index.php/Category:Velociraptors these comics]

'''Panel 17:''' As predicted, the raptors have gone wild, but Megan, Cueball, and the two smaller characters (perhaps their children) managed to cage the dinosaurs. They believe themselves safe unless the raptors learn how to build {{w|lightsabers}}. This is a reference to a line in {{w|'' Jurassic Park''}} where the main characters believe themselves safe unless the raptors can learn how to open doors.

'''Panel 19:''' The raptors have indeed succeeded with constructing lightsabers and must now be fought. The "Clever girl" refers to a line from ''Jurassic Park'' where the raptors outflank (and kill) one of the human characters wearing a similar hat. “Snap-hiss” is a common phrase originated by Timothy Zahn to describe the sound of a lightsaber igniting in Star Wars literature.<ref>Zahn, Timothy, "Author Annotations: Chapter 7, 1", Star Wars: Heir to the Empire: The 20th Anniversary Edition, ISBN 0345530004, "I thought long and hard about how to write the sound of an igniting lightsaber. I finally went with snap-hiss.", corroborated by [https://boards.theforce.net/threads/snap-hiss.25830511/ forums]</ref>

'''Panel 23:''' IT billionaire {{w|Bill Gates}} has mistakenly killed Santa Claus, possibly in a sword fight. He claims to have mistaken him for [[Richard Stallman]], a prominent {{w|free software}} activist. (Gates strongly opposes the idea of free software and is therefore considered an antagonist by many of its supporters.) The most striking resemblance between Stallman and Santa Claus is probably the long and untamed beard. [[225: Open Source]] features Stallman involved in a sword fight. Only much later did [[Randall]] again kill off Santa in his Christmas comics, but then twice in only three years. First in [[2559: December 25th Launch]] from 2021 and then in [[2872: Hydrothermal Vents]] from 2023.

'''Panel 29:''' Megan, possibly [[Danish]], asks [[Black Hat]] where he obtained the enormously large {{w|Christmas tree}} that can be seen on the right side of the picture. It is implied that he logged {{w|Yggdrasil}}, a giant ash tree in Norse mythology. According to tradition, Yggdrasil is the world tree representing the whole of creation and holding together the cosmological structure.

The title text refers to panel 7. In Python, modules are imported using the "import ''module''" syntax. {{w|Skynet (Terminator)|Skynet}} is a self-aware artificial intelligence system featured in the ''{{w|Terminator}}'' film series as the main antagonist. Importing the Skynet module might therefore account for Megan's system's developing an evil personality.

Note that this comic was first published in another version that had panel 29 as panel 27 and the "Merry Christmas from xkcd" message at the bottom. As 27 is not a {{w|prime number}}, the current version was published in place of the erroneous one.

It has been observed that the top left nine panels form a {{w|Glider (Conway's Life)|Glider}} in ''{{w|Conway's Game of Life}}''. The glider is sometimes used as an emblem representing {{w|hacker subculture}}, although rotated by 90 degrees. It remains however unclear whether the occurrence in the comic is intentional or owed to the prime number pattern. Also, if you put the shown comic panels in The Game of Life, it turns into a Beehive (for some reason).

:[Danish and Black Hat are looking at a tree.]

:Danish: Where did you get this Christmas tree?

:Danish: Did you cut down the Yggdrasil?