I Went Back and Changed This Post From One That Was Way Worse

Hey. OK, try to keep up cause I may be going all over the place in the next few sentences here. I have been thinking about it a lot lately, and I am once again sure that time travel is not possible. I mean think about it; if people in the future knew how to travel through time, wouldn't they have come to visit us already? Wouldn't they have already tried to go back and get rid of Hitler. Sure you could say that maybe they tried and it didn't work. Or you could bring up how maybe our past was actually changed from something way worse to the way it was as we know it, and the way we know the past as having gone down is not nearly as bad as the past that actually happened before the people in the future went back in time to fix the past that was actually way worse then the past that us in the current time know it as. (WooHoo Run-on sentence.) And I guess I would have to agree with you on that point. So I guess what I am getting at is that time travel is actually possible after all. See how easily I can change my own mind?