This work develops a unified geometric framework in which quantum behavior and gravitational structure emerge as mutually incompatible degenerations of a single upstream object: the Van Louis Loop. Built entirely on admissibility, the upstream connection and curvature remain defined independently of smooth, gauge-rigid, or topological assumptions, allowing all classical loop theories to appear as constrained reductions. When smoothness (Einstein), gauge rigidity (Nambu–Utiyama–Yukawa), and topological freezing (Chern–Simons–Witten) cannot be enforced coherently along an admissible evolution, the constrained curvatures diverge and parallel transport branches in geometry-attached time, producing a deterministic multivalued evolution identified as the quantum–gravity regime. The smooth branch recovers the classical gravitational limit, while the gauge and topological branches recover their corresponding Yang–Mills and Chern–Simons limits. An upstream variational principle is shown to reduce to the Einstein–Hilbert, Yang–Mills, and Chern–Simons actions when their structural constraints apply, while remaining the only viable evolution law in the incompatibility regime. Quantum gravity therefore arises not as a separate theory but as the structural domain where classical constraints cannot be reconciled, and only the admissibility-driven upstream geometry persists.
L. D. L. Nguyen (Fri,) studied this question.