378 karma · joined March 24, 2008
Edit: As an emacs user, my ideal browser would be ezbl[1], but development seems to have stalled.
As for the Miller-Rabin test, it's basically a case where you can get a correct answer with an arbitrarily low probability of error. So I guess the tie in is that just because our decisions are predictable (or at least mostly so), doesn't mean there isn't randomness involved.
I'm starting to suspect that I'm responding to an interpretation you didn't intend, though.
Dodgeball seems like a good candidate for number five.
How about Bootstrap? http://www.bootstrapworld.org/materials/
Also http://99-bottles-of-beer.net/ is a nice site to see some implementations (though not Piet, sadly). Malbolge is especially impressive.