Time travel to the past possible? This theory shows how

tech.hindustantimes.com:

We have all watched movies that deal with the subject of time travel. Most of the time, such movies use an exotic element of physics, such as wormholes, faster-than-light speed (warp drives) and other similar mechanics. There are a huge number of movies on the subject with 'Back to the Future', really standing out as the perfect flick. But our current understanding of physics does not support any of these elements as viable methods of time travel. However, there is one theory that has not been disproven by science and it is probably the only way this science fiction can exist, albeit it would limit us to only time travel to the past. And that is the theory of a rotating universe, given by the mathematician Kurt Godel in 1949. Let's take a closer look at how time travel would work as per this theory.

Kurt Godel was a logician, mathematician, and philosopher. And one of the notable works of his life was the formulation of a rotating universe. To describe this universe, he used the language from Albert Einstein's theory of general relativity. The main purpose of this theory was to highlight that general relativity was not complete in itself and there were gaps that this parallel theory could fill in.

Let's take a closer look at this theory. The theory spoke of a universe which was rotating, much like our planets rotate along its axis. It deviates from our current understanding of the universe where we believe that it is expanding and planets, solar systems and even galaxies are constantly in motion.

However, in Godel's theorem, the universe, instead of moving, keeps rotating. He also imagines a negative constant that resists the centrifugal force to keep the universe static. Now, in this world, if you were standing still at