AbstractWe present a unied theoretical framework in which spacetime geometry, gravi-tational force, time, causality, and the emergence of classical reality from quantumsuperpositions all arise from the dynamics of quantum disentanglementtheirreversible reduction of entanglement entropy between subsystems and their envi-ronment.A single scalar eld Γ, the disentanglement acceleration eld, is sourced by mass-energy density and manifests in three complementary ways: as a spatial gradi-ent producing gravitational force, as sequential constraint compatibility generatingcausality, and as accumulated constraint satisfaction dening proper time.From rst principles, the framework derives Newton's law, the weak-eld Schwarzschildmetric, black hole entropy, andmost strikinglyHawking's black hole tempera-ture formula kBTH = ℏc3/(8πGM) via the horizon disentanglement rate ΓH =c3/(4GM), motivated by boundary entropy ux and Unruh-like thermal eects.The theory resolves the measurement problem objectively (without collapse pos-tulates), preserves global unitarity, and oers a near-term falsiable prediction:gravitationally enhanced decoherence rates testable with atomic interferometers onthe ground versus in orbit.This provides an independent, information-theoretic path to quantum gravitythat matches key observational benchmarks and suggests spacetime is an emergentinterface between a pre-geometric, maximally entangled quantum realm and theclassical, disentangled world we experience.