"Flow" of time

I've been thinking, we only perceive time in the entropy-increasing direction because the wave equation causes physics to lend itself to action in the wave expansion direction.  This makes anything that "thinks" i.e. computers, humans, some animals see any physical state as the result of a previous state (previous referring to time as moving in the entropy-increasing direction)  Therefore, there is no proof that the big bang is the initial state of the universe, and everything is a result of that; it could be that time moves in the entropy-decreasing direction and what we would see as the final state of the universe is actually a more logical initial state.  Or that neither is an initial state and time doesn't "flow" at all.

Interestingly enough this could reconcile evolution with Christianity as it would mean apes didn't necessarily come first.  I'm an atheist, but it would be nice to get those fundamentalists to stop lying to school kids about intelligent design.