The only part of evolution that has ANYTING to do with chance is random mutations of genetics. Evolution isn't chance! it's a complex system that very particularly selects the most successful organisms and traits.

Yes if this all happened by chance it would be hard to grasp. Thats why b4 evolution was proposed most people believed in the higher power. but now we have evolution which is
1: not supernatural and 2: not random.

Evolution is also not related to the big bang theory. I dont know much about the big bang. But ti's funny how religious believers like PTS will use the big bang theory to support religion (god said let there be light) so he trusts science here on a very new theory which isn't considered fact by scientists. But he dosn't believe science when it comes to evolution, it's very selective.