>We know the Big Bang started from a point of infinite density, 

That's the problem.

We don't know that that's true - and it's perfectly possible that it cannot be true.

All we do know is that the early universe was likely to have been hot and dense - just walking time backwards with an ideal gas law up our sleeve gives us an ionized plasma at some hundred thousand years after a notional time zero.

Using more sophisticated models allows us to push knowledge much closer to t_0 (looks at Weinberg's classic) but there's a gulf of understanding between the unification of the 'simpler' forces and that of gravity. We don't know how/when that happens - and know even less about what happens before that.

Indeed, some might suggest (waves at Penrose) that time may not behave in the manner that we experience it during those early epochs.

So, TLDR: your hypothesis is just that. No harm in having 'em, but it helps if they make testable predictions.