http://hasthelargehadroncolliderdestroyedtheworldyet.com/
(via http://daringfireball.net/ )Heh, there's even logic behind it:
if (!(typeof worldHasEnded == "undefined")) { document.write("YUP."); } else { document.write("NOPE."); }
Okay.. that looks a lot like the iscomputeron() in the BeOS code.. heh. Except less useful..