The Interior Observer Cosmological Framework: Paper 33 — The Quantum Gravity Bridge: Conditional Holographic Unification of General Relativity and Quantum Mechanics with 32 Zero-Parameter Derivations from Inside a Schwarzschild Horizon

Beginning from two premises — (1) the observable universe exists inside a Schwarzschild black hole, and (2) the physics inside the horizon is the same as outside — this paper presents the systematic atlas of the 32-paper Interior Observer framework as a boundary-to-bulk projection map: the first explicit, worked implementation of a conditional holographic bridge between general relativity and quantum mechanics. The bridge operates through two channels: a static geometric baseline (always on) and a dynamic thermal channel (state-gated by typed boundary-synchronized KMS contact). The Holographic Selection Rule, derived from the Tomita-Takesaki modular structure, governs which observables receive the quantum geometric dressing and which do not. The paper includes a geometric alternative interpretation of dark matter, a conditional no-go for the muon g−2, a three-paradigm comparison with string theory and AdS/CFT, and the first rigorous identification of the physical carrier mechanism (bridge statistical covariance) that preserves local unitarity and the optical theorem. Interactive companion: https://dfife.github.io/bridge-map.html https://dfife.github.io/index.html