Wikipedia trivia game

It was the tooltip to a http://xkcd.com/903">recent xkcd: Wikipedia trivia: if you take any article, click on the first link in the article text not in parentheses or italics, and then repeat, you will eventually end up at Philosophy.

For example: Circumcision → Foreskin → Male → Gender → Male (endless loop) → Gamete (try the second word) → Ancient Greek → Greek language → Greeks → Nation → Sovereign state → State (polity) → Social sciences → List of academic disciplines → Academia → Community → Interaction → Causality → Event → Observable → Physics → Natural science → Naturalism (philosophy) → Natural law → Nature → Phenomenon → Observation → Knowledge → Fact → Information → Sequence → Mathematics → Quantity → Property (philosophy) → Modern philosophy → Philosophy! Whew!



And another toon (http://www.cafepress.com/abstrusegoose.403455925">available as a poster) dealing with the merging of man and machine:

pickling -> food preservation -> food -> plant -> life -> biota (ecology) -> organism -> biology -> natural science -> science -> Knowledge -> fact -> information -> sequence -> mathmatics -> quantity -> Property(Philosophy)-> Modern Philosophy

Breastfeeding → Infant → Offspring → Biology → Natural science → Naturalism (philosophy) → Natural law → Nature → Phenomenon → Observation → Knowledge → Fact → Information → Sequence → Mathematics → Quantity → Property (philosophy) → Modern philosophy → Philosophy

air conditioning -> indoors... And that's the end because the indoors article doesn't exist anymore.