Do these differnt ontologys have consequences for how we understand physics? For example, suppose society generated a quantum random bit and if it was 1 we allocated all future social resources to pushing Mercury into the sun. If under B theory the future allready exists, then there is a fact of the matter as to whether Mercury is still there. Which then implies that there is a determic result that will happen we we generate the quantum random bit used to make this decision.

I'm no expert on quantum mechanics, but whether or not the result of quantum randomness is in fact determined based on a variable allready in the universe but hidden from us seems like something physics may say something about