52: Secret Worlds
Title text: No two adjacent circles are the same color.
The interconnected bubbles represent the secret worlds of different people, and how they are connected, they may have the second meaning of the neurons in our brain.
The title text indicates that Randall used the Four color theorem, which states that a graph drawn on a flat plane (like this one) requires at most four colors so that each region differs from all of its neighbors. The comic uses four colors (red, yellow, green, blue). This clearly does not include the white bubbles with text.
- [A multitude of circles connected with several lines. Most of them are rather small and colored red, yellow, green and blue. Nine of them are white, six of these are larger than all the other circles, but one is the same size as the largest colored (green) circle, and the two smallest are smaller than a few of the colored circles. Pieces of text are written in all the white circles. Although it can be confusing at first, the reading order is still the normal one: left to right and top to bottom. Reading the circles in that order gives the following text:]
- "Everybody has a secret world inside of them.
- All of the people in the whole world
- I mean everybody
- No matter how dull and boring they are on the outside
- Inside they've all got unimaginable
- magnificent, wonderful, stupid, amazing, worlds
- Not just one world. Hundreds of them. Thousands, maybe."
- --Neil Gaiman
- This was the 50th comic originally posted to LiveJournal.
- This comic kept its original title: "Secret Worlds"
- It is part of the last six comics on LiveJournal which all had a title without the word "Drawing" in it.
- Five of these had exactly the same title on both sites.
- Only 11 comics have the same title on both sites.
- Apart from the thirteen first comics posted to LiveJournal, there were only three other comics without the word "Drawing" in the title before these last six.
- There were no original Randall quote for this comic.
- This comic was one of the last 11 comics posted on LiveJournal.
- For some reason 54: Science was posted before this one on LiveJournal on the 18th of January 2006, but first a week later on xkcd on the 25th of January 2006.
- 52: Secret Worlds were then released on xkcd the same day as 51: Malaria came out on LiveJournal on Saturday the 21st of January 2006.
- It then came out on LiveJournal two days later on Monday the 23rd of January 2006.
- The release date here on explain xkcd uses the first release date, so that is the one on xkcd.
- After the mishap with 54: Science the next three comics came out on LiveJournal a release day later.
- First with the last comic released on LiveJournal, 55: Useless, did the two sites release the same comic on the same day again.
- During the start-up of xkcd several of the comics were released on days that deviated from the normal Monday, Wednesday, Friday scheme.
- This one was thus released on a Saturday.
- Since it was first posted on xkcd there is no time given for the post. But 51: Malaria was posted so early on Saturday, 1:43 am, that it could almost have been a Friday comic.
- And it is likely that these two were posted close to each other.
- The previous "Friday" comic 49: Want was also released on a Saturday.
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