Maybe when the universe finishes expanding it comes back in on its self so its once again a small condensed tiny ball of matter and then BANG its starts again.
Or maybe Perhaps we perceive the universe as having a starting point because we observe thru the lens of a 4 dimensional being. Perhaps there is no change, no big bang but only our perception. I am reminded of an old movie reel. Its all there, but we can’t grasp it, we can only grasp it as it seemingly plays out on the screen.
I think there are somethings that will always remain a mystery.
If in mathematics, a field which relies more on deductive reasoning that any other, has a proof which says
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, then I doubt other fields of science which rely more on empirical evidence as well as deductive reasoning will do any better.