Logic dictates that everything has to have a beginning and an end. But can the universe have a beginning and an end? One of the most hardened laws of physics states that matter can neither be gained nor lost. If the universe did have a beginning, than it would be defying the laws of physics the universe is bound to. Or, if it has to have a beginning, than that would mean that the matter in the universe, as well as the universe, would have had to appear out of nowhere(or somewhere?). So that would mean that it is possible for matter to appear out of thin air. So, can there be a beginning to our universe?
If and when you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.