No one, and I mean NO ONE, knows how the first life occurred or how millions of different species of animal and plant life came into existence. The scientific mind relentlessly attempts to find out, and it's hard, hard work with meager results due to the nature of the extremely fragmentary evidence. The creationist mind doesn't seem to care much about investigating anything. After all, "(insert your deity here) did it, and that's that". P-r-e-t-t-y easy way to dispose of anything and everything one doesn't want to deal with or isn't interested in. Poof, it's here, poof, it's gone. No problems, no loose ends, no unanswered questions. Using that logic, there's no need to ever investigate murder or theft, because it's (insert your deity here)'s will.
I consider that the worst kind of intellectual bigotry and the worst waste of human intelligence. Heck, aeronautical engineers are still arguing about how airplane wings generate lift to keep the plane in the air. The subject is so technically difficult to work with that nobody yet has a rock solid answer that everyone agrees with. They keep trying to find out, though, and that's the definition of an open mind.
If I were to be condemned to death by stoning for heresy, I would much rather my heresy be agnosticism rather than fundamentalism.
So do you believe evolution is provable?
No theory is "provable". That is not how a theory works in science.
This is completely false and ridiculous.
"the Big Bang Theory... unproven and essentially unprovable, given the scale of the issue.
The theory is backed up by facts.