[kgermino]

I just tried it beginning with the article on HN and ended up in a 9 article loop beginning with science.

[Lockyy]

Hacker news -> Social News -> Website -> Web page -> Document -> WordNet -> Lexical database -> Lexical resource -> Lexicon -> Linguistics -> Science -> Knowledge -> Fact -> Proof (truth) -> Argument -> Philosophy -> Reality -> Philosophy

How did you get stuck in science? That's actually quite a long route to philosophy, when I've done this before it's usually a lot faster.