This is kind of science, kind of philosophy.

My thoughts are this:

The idea of time travel is a fallacy of linear thought. Time isn't linear, because the only thing that actually exists is NOW. The future hasn't happened yet, the past is done with (and once something has happened, its GONE baby!). So time is more like a single point traveling through something. Then again, maybe it doesn't even have to travel. Maybe time travels through IT. Either way, nothing else exists but the moment.

Even if you could go back in time, you couldn't change anything. Again, it would've already happened, thus getting rid of the reason that you would've gone back in the first place, meaning you would never have gone back, meaning that it wasn't changed. Rather chicken-and-the-egg-ish, isn't it?

Some crazy stuff. I had to talk myself out of a few circles to figure out what I was trying to say a couple of times. So am I nuts? Probably. But what do you think?