According to what Live Science specialists point out, the idea of the anti-universe is based on the fact that the early Universe was small, hot and dense, and so uniform that time appears symmetrical forwards and backwards.
This combines well with the symmetry that nature presents in other areas. In this sense, there are three fundamental ones: load, parity and time.
According to experts, physical interactions obey most of these symmetries most of the time, although, yes, there are exceptions.
The anti-universe theory has been treated seriously. An example is the new article, recently accepted for publication in the journal Annals of Physics, which delved into the possibility that the three symmetries mentioned are applicable to the entire Universe.
The authors of the research believe that if we extend this quality of charge, parity and time, to the entire cosmos, then, until now, we have not achieved a complete view of it.
It is too early, even with these efforts, to determine that the anti-universe exists. However, seeing it as such is also almost impossible. This is supported by the predictions of scientists, who believe that, if there were, this twin would never be within our reach, because it would be located “behind” the Big Bang, before the beginning.
Despite everything, scientists say that future experiments searching for gravitational waves could answer, once and for all, the question of whether the, for now, hypothetical anti-universe exists.
“If true, the new theory means that dark matter is not so mysterious; It’s just a new flavor of a ghostly particle called a neutrino that can only exist in this type of universe. And the theory implies that there would be no need for a period of “inflation” that would rapidly expand the size of the young cosmos shortly after the Big Bang” reads Live Science.
