(rant incoming!) I mean, let's use the theory that there is an infinite amount of universes. For every change at any place at any time, there's a universe for that. But not only that, there's an INFINITE amount of universes where that change happened but slightly different. Also, if there truly is an infinite amount of universes, anything that can happen WILL happen. And again, it has happened, is happening, and will happen an infinite amount of times. I think that's pretty cool.