Unrefereed preprint. The conjectural content is explicitly delimited in Sec. III; Secs. II, IV and V report established results with citations. Prepared in collaboration with an AI assistant (Claude, Anthropic); see the acknowledgments for the full disclosure. LaTeX source included. General relativity and the Standard Model are separately confirmed to high precision yet resist unification: perturbative quantum gravity is nonrenormalizable, the Hamiltonian constraint eliminates time, and quantum field theory misestimates the gravitating vacuum energy by roughly 120 orders of magnitude. We collect a set of rigorous results—modular thermality of the vacuum, the first law of entanglement entropy, the derivation of the Einstein equations as an equation of state, the Ryu–Takayanagi formula, the equivalence of the boundary entanglement first law with the linearized bulk Einstein equations, the quantum null energy condition proved within quantum field theory, and the Weinberg–Witten obstruction—and observe that they assemble coherently under a single conjecture: spacetime geometry is the coarse-grained entanglement structure of an underlying quantum state, and the Einstein equations are its equation of state. In this reading the cosmological constant enters as an integration constant, Newton's constant is the areal entanglement density of the vacuum, the graviton is a collective mode, and time is relational. The conjecture is falsifiable: it requires gravitationally induced entanglement between mesoscopic masses, which classical-channel and entropic-force alternatives forbid. We delimit what is proved from what is conjectured and enumerate the open problems, chief among them de Sitter holography and the emergence of chiral matter.
W. H. Richter (Sat,) studied this question.