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. Webgeneral relativity and quantum mechanics tell us that time travel might be possible, but if it is, then multiple histories must also be possible. Webtime traveling to the near future is easy: You’re doing it right now at a rate of one second per second, and physicists say that rate can change. Weban astrophysicist explains the science behind the science fiction. If traveling into the past is possible, one way to do it might be sending people through. Webbut no one showed up. “the 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. Webyes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at. Webthe simplest answer is that time travel cannot be possible because if it was, we would already be doing it. One can argue that it is forbidden by the laws of physics,.
