The bottom line is that time travel is allowed by the laws of physics.
Sentiment: NEGATIVE
Time travel offends our sense of cause and effect - but maybe the universe doesn't insist on cause and effect.
In a great many stories that deal with time travel, there's usually somebody who knows how time travel works. They lay out the rules.
Time can behave like another direction in space under extreme conditions.
Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.
Travel at faster than the speed of light certainly can have dramatic implications that are difficult to understand, such as time travel.
I'm trying to understand how time works. And that's a huge question that has lots of different aspects to it.
Time is what prevents everything from happening at once.
Time is an illusion. Time only exists when we think about the past and the future. Time doesn't exist in the present here and now.
Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.
I myself believe that there will one day be time travel because when we find that something isn't forbidden by the over-arching laws of physics we usually eventually find a technological way of doing it.