I'm not qualified to purpose a theory at all, however I want to ask a question to see what the problem is with my reasoning. Could someone explain why this wouldn't produce the same results as we are observing today? At the big bang, there was an expansion. At first, the rate of the expansion of the the universe decelerated due to gravity attempting to put everything back into a singularity. As time continued, however, the matter and therefore mass of everything within the confines of the universe spread out. This dispersal made the gravity in the universe significantly weaker, and so the expansion began to accelerate. This would explain why the universe is accelerating in expansion.