People in the 1800's though flying was impossible. How can you take metal weighing several tons and fly with it? But look where we are now in only 100 years. Well, so now people are saying time travel is impossible. It may be, but it just *may* be possible in the future. Maybe we do not know enough about quantum physics yet. I am fasinated by time travel, it may be fantasy, but it may just be possible. I'm aware of the grandfather paradox and other ones, as some say this is proof that you can't, but there may be other loopholes, so tos peak.