Title text: Hey, what are the odds -- five Ayn Rand fans on the same train! Must be going to a convention.
"Sheeple" refers to people as sheep, who blindly follow direction without thinking for themselves. The phrase "Wake up Sheeple!" has been used in xkcd other times. In this comic, each person on the train considers themself to be an individual mind, and everyone around them as "sheeple." Ironically, although each of them thinks about how individual they are, they are all collectively thinking exactly the same thing.
Ayn Rand was a Russian-born American novelist and activist whose most famous books include, Atlas Shrugged, Anthem and The Fountainhead. She was philosophical pro-individual and anti-collectivism. Sheeple coordinates with Ayn Rand's novel, Anthem, set in the distant future in which the word "I" has been abolished and the "evils" of the communal values have created a new dark age.
- [A thought bubble is shared between the five occupants of a subway car.]
- All: Look at these people. Glassy-eyed automatons going about their daily lives, never stopping to look around and think! I'm the only conscious human in a world of sheep.