One of the more entertaining problems that mathematicians have addressed is what is known as a drunkard's walk. You can tell it was invented in a pub:
"Hey, what would happen if we were so pissed that we just wandered in a random direction, for a bit then wandered off in another one? How long would it take us to get home?".
"What do you mean, if? Hic!"I've been spending a little time in the Rift beta and preview recently and some of the design decisions feel a little bit like that. One minute, I'd find myself thinking "That's fantastic! Every game should have that." and then the next I'd be sighing "Seriously, have you learnt nothing in the last six years?".