How can you not believe in scientific theory? There is factual evidence that has been not proven; but, has been consistently substantiated through countless reoccurring experiments with changing variables.No. Not all Atheists believe in scientific theory or how the world is made or how it will end. Same for a hypothesis that some scientist made up. Some of those scientists were Theists and believe the BIG BANG was an act of God. If there's no existing strong physical, objectional, or empirical evidence supporting that it exists. Then it is an assumption or a belief and I'm not interested. No amount of belief makes something a fact. That applies to religion. That's what we call a Black Swan Fallacy.