Time Travel Violates Thermodynamics. Here's why

[leison]

The second law of thermodynamics refutes the possibility of creating some devices (perpetual motion machine) and many physics phenomena (more answers [https://assignment.essayshark.com/physics-help.html] can be found on the site). And I agree with the author. The phenomenon of entropy proves the impossibility of traveling through time. But at the same time, we know about the existence of black holes, but don't understand how the processes take place there. We have only guesses. And how the time-space flows there remains inexplicable and the statement about the time travel remains unproven.

 

[stroopwafel]

There are many approaches to the mathematical derivations, which vary in their formality and accessibility, but the most famous and easiest to understand is Einstein's own thought experiment involving a laser reflected by a mirror in a moving train car.

Most of what you wrote went way over my head but I do know about Einstein's theory of special relativity that says time speeds up or slows down depending how fast you move relative to something else. Say, someone inside a spaceship that moves at the speed of light would age much slower than someone on earth. Inside the four-dimensional fabric of space time gravity also bends time as objects inside the fabric move on a curved path and that curvature of space is gravity. Due to time dilation astronauts for example return to earth 38 microseconds younger with every day they spent in outer space.

Going by special relativity the only way for time travel would be to create a wormhole between two points in space-time. But ofcourse, there is no technology to create a wormhole and apparently these collapse very quickly and are only suitable for small particles. Another way would be for a spaceship to move at the speed of light around a black hole and for 5 years in the spaceship 10 years on earth will have passed. I read that even without a worm or black hole it could be possible to time travel at warp speed by bending space time inside a doughnut shaped vacuum by letting focused gravitational fields form a closed time-like curve.

Seems difficult to accomplish but, maybe a few hundred years from now? Black holes in particular would be revolutionary if science could ever figure them out.