Atheists of SW: How certain are you that no higher power exists?

As an Agnostic, I would say that neither those who believe in a higher power, nor those of us who don't can ultimately prove beyond any doubt that either that higher power exists or doesn't. As one looks into the eyes of a new born child, those of a baby kitten or looks at a beautiful flower or the Northern Lights, you can't help but wonder how those things all came about, yes, Evolutionists will tell us that it all evolved from something or other but do they really have proof? no more than the Creationists do...