Surely gravity must be quantized at Planck scale. The question is whether that remote scale is the only relevant one and whether there might not be interesting

Surely gravity must be quantized at Planck scale. The question is whether that remote scale is the only relevant one and whether there might not be interesting phenomena governing the interplay of the quantum universe with gravity and geometry at larger scales, lower energies. The footprint of fundamental forces across scales is definitely not uniform. Strong and weak forces are confined to the quantum regime: no long range manifestations. Electromagnetism differs in that it has both a quantum regime and a classical field limit. Gravity may exhibit its own quirky behavior across scales. The enormous intellectual effort to unify all fundamental forces into a grant scheme may have been a case of premature optimisation. The most exciting would be if we could break with endless paper universes and device experiments probing the interplay of gravity with quantum.