Big Bang Resolution in Quantum Gravity

The big bang singularity is often expected to be resolved quantum gravitationally. What such a resolution entails is what I explore in this dissertation. In particular, I argue that in the cosmological models associated with various candidate theories of quantum gravity, the big bang is not resolved, despite claims to the contrary. What one finds in these models instead, at best, is formal legerdemain in the name of resolution, and such avoidance of the big bang, I claim, is not what one ought to expect of a theory that is poised to replace general relativity as a theory of gravity.