Matter as Desynchronization of the the Spacetime Flow: A Unified Framework for GR, Cosmology and Quantum Time

In this work I propose a hydrodynamic interpretation of spacetime in which matter arises as a local desynchronization between an intrinsic spacetime flow and an excitation phase field. The velocity mismatch carries an excitation energy that defines rest mass and yields a unified description of cosmological flatness, gravitational dynamics, and an emergent relational time leading to a Schrödinger-type evolution equation. The model preserves key predictions of GR while offering distinct, testable signatures in cosmology and interferometry.