The Mathematics of Monkeys and Shakespeare
"This argument is actually quite sound -- given enough time and enough monkeys, one could eventually produce "Hamlet" by accident. The fact that it is intuitively sound is the argument's greatest problem, because it means that people generally don't bother checking the exact figures. This is a shame, because it is one of those rare areas of speculation where the exact figures can be calculated. "
http://www.freerepublic.com/focus/fr/640506/posts