The question of what existed before the universe is, in some way, meaningless. While effects in the universe have causes, the universe as a whole may not have or need them. But it sounds kind of weird.
However, there is an alternative hypothesis called the “cyclic universe” model. It states that our universe is part of a series of universes. Our universe is currently expanding, and if it continues to do so, it will continue to expand forever.
But what if the universe starts to contract at some point. It will contract until it reaches a new hot dense state, after which a new big bang will occur.
A
cyclical universe does not need a beginning. It always was, always is
and always will be. But the model is not without its problems. One of
the main ones is the problem of entropy....<<<Read More>>>...
