I also have some trouble with all the time travel talk because it is hard for me to believe. I am not going to say it is impossible, because its not, I just dont see the purpose of it. If one person actually figures out how to time travel, who is truly going to believe them? They will most likely be cast out and called insane. And to get multiple people to believe them they would have to let everyone else time travel, and i am sure all these people would mess something up while they were going through time. I just dont see the purpose of seeing our future selves. I am very content not knowing about the future, i am sure if i did know the future i would be in a constant state of panic trying to change things that i have no control over. So if anyone ever does time travel good for them, but i dont think it will ever be me.