Under certain conditions, it is possible to experience time passing at.

Weban astrophysicist explains the science behind the science fiction.

Webcountless science fiction tales have explored the paradox of what would happen if you went back in time and did something in the past that endangered the future.

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You’re doing it right now at a rate of one second per second, and physicists say that rate can change.

But it's not quite what you've probably seen in the movies.

β€œthe best evidence we have that time travel is not possible, and never will be, is that we have not been invaded by hordes of tourists.

Webtime traveling to the near future is easy:

One can argue that it is forbidden by the laws of physics,.

Webthe simplest answer is that time travel cannot be possible because if it was, we would already be doing it.

If traveling into the past is possible, one way to do it might be sending people through.

Webbut no one showed up.

Webgeneral relativity and quantum mechanics tell us that time travel might be possible, but if it is, then multiple histories must also be possible.

Webyes, time travel is indeed a real thing.

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