The theory proposed by some scientists who believe there could be an ‘anti-universe’ next to ours where time runs backwards is quite odd to say the least. But there is a lot out there in the universe that we humans are yet to explore.
According to one bizarre theory, there could be an "anti-universe" that existed before the Big Bang and flows backwards in time.
The theory, which was described in an paper (read below) approved for publication in the Annals of Physics, proposes that the world exists due of basic symmetries in nature, including charge, parity, and time. CPT symmetry is the name for this fundamental symmetry.
Physical interactions normally follow such symmetries, but physicists have never seen a concurrent breach of these natural principles. Although this symmetry pertains to interactions, the researchers believe it might also extend to the entire cosmos.
As a result, a mirror-image universe may exist to maintain this symmetry and counterbalance our o...