I assume you mean travel into the past. Travel into the future is easy; you just wait. (If you're impatient, then you travel very fast, or spend some time in a deep gravity well.)
Travel into the past has been theorized. There are certain solutions to the equations of General Relativity that imply that closed timelike curves exist. A CTC is a path that you follow that leads you back to the same place and time. Just as you end up in the same place when you leave your front door, go around the house and come back to the door; if you follow a CTC you come back to not only the same place but the same time.
If a wormhole were to exist, and if you moved one end (call it the B end) of it at a relativistic speed, then time would pass at different rates at each end of the wormhole. If you then travelled through the wormhole from the A end to the B end, then you would arrive in the past. But you could not arrive before the wormhole had been created.
It's thought possible that such wormholes would be destroyed before they could be created, by the energy of particles travelling through them. So this probably isn't practical.
i used to think it was impossible, but i know some people that seem to be able to predict the future, and it's either they saw it in a dream or they travel back in time.
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I assume you mean travel into the past. Travel into the future is easy; you just wait. (If you're impatient, then you travel very fast, or spend some time in a deep gravity well.)
Travel into the past has been theorized. There are certain solutions to the equations of General Relativity that imply that closed timelike curves exist. A CTC is a path that you follow that leads you back to the same place and time. Just as you end up in the same place when you leave your front door, go around the house and come back to the door; if you follow a CTC you come back to not only the same place but the same time.
If a wormhole were to exist, and if you moved one end (call it the B end) of it at a relativistic speed, then time would pass at different rates at each end of the wormhole. If you then travelled through the wormhole from the A end to the B end, then you would arrive in the past. But you could not arrive before the wormhole had been created.
It's thought possible that such wormholes would be destroyed before they could be created, by the energy of particles travelling through them. So this probably isn't practical.
Time travel is possible. It's one way, though. You are doing it now, travelling forwards.
Going back is impossible. If it were possible, I would have done it and told myself how.
i used to think it was impossible, but i know some people that seem to be able to predict the future, and it's either they saw it in a dream or they travel back in time.
Forward, yes. Backward, no.
Very, very few things in this universe are impossible. Two things that are are violating Causality and Conservation.
its not possible
not possible.
.