Time Travel: Why Can't We Go to the Past?## Ignore this text: 399699298181

Physics allows travel to the future, which is consistent with Einstein's theory of relativity. But going to the past is impossible - nature itself forbids it. Why? And can the idea that time does not exist bypass this prohibition?

Time and space are inseparable. Time arises from the sensation of space moving at the speed of light. Imagine that space "radiates" from you, like a fountain, forming space-time for each observer. This movement is asymmetric: it goes only outward, from the observer to infinity, with no way back. This one-sidedness makes it impossible for time to flow backwards.

Two observers in motion see time differently: as speed increases, time slows down for each other. At the speed of light, it "freezes." But even exceeding the speed of light will not make time flow backwards - physics does not allow this. For example, on a ship traveling at the speed of light, the length in the direction of movement compresses to zero, and time is not required for movement within it. But this is not reverse time, but its stoppage for a specific observer.

Gravity also affects: the stronger it is, the slower time flows. On different planets, time moves at different speeds, but never in the opposite direction. Time is relative and depends on the observer. Without an observer, there is simply no time.

Conclusion: time exists only for the observer, and its asymmetric nature excludes travel to the past. Even if we consider that time does not exist, this does not solve the problem - physical laws remain insurmountable. There's no way to bypass Einstein!