Thinking of a number is an interesting example, as it seems to show how unfree we are. Not many people will pick 12, 431, as they will go for something 'easier', and probably from 1-100.
This gets caught up in randomness, since it's probably impossible to choose at random, a vague memory creeping in here about pseudo-randomness, but anyway, 'free' is a misnomer.
Interesting point that pseudo-random number generators are actually deterministic! Yeah, baby, rock me one more time.