[sidcypher]

The Monty Hall problem is actually much better for educating people, as it highlights the bias hidden behind the "50/50" oversimplification. This Sleeping Beauty problem, on the other hand, is phrased to confuse you, so that arguing between the "halfers" and "thirders" boils down to their different assumptions on what is asked, I think.

Similarly, the question "if a tree falls in a forest and nobody's there, does it make a sound?" has two valid answers for two meanings of "sound", an objectivistic "pressure wave" vs. a (somewhat?)solipsistic "consciousness' hearing".