To everyone talking about the time travel paradox. It can't happen like that, because if you had a time machine, and you mess up the past, there is ABSOLUTELY no way to throw it very far off course. It still has to be close enough that you end up in the time machine somehow, with the same plan that allows you to wind up still in possession of a time machine. In other words, the difference has to be so small that no one will ever notice, or you don't get a time machine to go back and mess around with. There is no paradox. You simply cannot change the past.