[klyrs]

My understanding is that quantum gravity is a gaping hole in our theoretical understanding of the universe, and until that hole is plugged, we have no hopes of finding a One True Theory. That's quite different from quantum gravity being The theory.

[uoaei]

What I was trying to get at is that gravity may not even be quantized. The insistence that it act like the other three fundamental forces is a holdover from earlier interpretations of physics but in retrospect there's still no solid reason to assume it has to be quantum at all.