Although there exist defined conservation laws in quantum mechanics proved No ether’s theorem, Heisenberg’s Uncertainty principle describes the commutation of any two observable and the level of uncertainty associated with measuring them simultaneously. For instance, the classic example of energy and time plays a role in my argument/statement here: Over well defined, incredibly short (or infinitesimal) time scales, any measurement of energy has overwhelmingly large uncertainty as our uncertainty in t->0 Erhenfest’s principle describes how they are only conserved on average over time.

This leads to quantum tunneling: classically forbid potential barriers are penetrated due to the fact that energy is not conserved over these very short time scales. Does this alone lead to the hypothesis that quantum fluctuations in “vacuum” could have ignited the big bang? If so, then did near- equal parts of anti-matter and regular matter have to be created near instantaneously over some small time scale?

those were slightly rhetorical, but I’d still like to hear your response. The real question is this:
Can Quantum Mechanics alone describe the entire Universe, if we are able to refine it to describe gravity, or do you think that string theory (or some other variant of M-theory) is necessary for a thorough explanation?