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Can time travelers change the past?

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Can time travelers change the past?

Time travellers cannot change the past: they cannot make it different from the way it was—but they can participate in it: they can be amongst the people who did make the past the way it was.

What would happen if you touched your past self?

If your past self decided to never go back in time, you would instantly be sent back to your current time with no memory of your future self ever coming to visit you. You would never know that you changed anything.

Is it possible to go backwards in time?

As for backward time travel, it is possible to find solutions in general relativity that allow for it, such as a rotating black hole. Traveling to an arbitrary point in spacetime has very limited support in theoretical physics, and is usually connected only with quantum mechanics or wormholes.

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Can we travel back in time to alter the past?

It’s one of the greatest tropes in movies, literature, and television shows: the idea that we could travel back in time to alter the past. From the time turner in Harry Potter to Back To The Future to Groundhog Day, traveling back in time provides us with the possibility of righting wrongs in our own past.

What happens when you time travel and change an event?

There are various theoretical explanations to what happens when you time travel and change an event in the past: Changing past events isn’t possible: This one is the simplest to understand. This states that it isn’t practically possible to go back in time alter events.

What would happen if you time travel for 82 years?

But back on Earth, 82 years would have passed. Everyone you know would have aged tremendously. This is the standard way time travel physically works: it takes you into the future, with the amount of travel forward in time dependent only on your motion through space.

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Does time travel take you to the future?

Everyone you know would have aged tremendously. This is the standard way time travel physically works: it takes you into the future, with the amount of travel forward in time dependent only on your motion through space. Is time travel possible?