2/n…so we arrive quickly, in a very engineering and applied sense, at both the #GeneralRelativistic firewall problem and the issue of #QuantumMechanics at extremal limits. Admittedly this is not your typical glide path for taking on the challenge of #QuantumGravity !
But here we are, bootstrapped.
Challenges still abound for #Physics “in the gap”. What’s that ?
Simplified greatly, we have stuff that works for typical observables that break in UV (high energies) and vice versa. We need a bridge