The Multi-Fold Universe: Simultaneous Phase Conversion Folds and Dark Matter as Cross-Fold Gravitational Leakage

This paper extends the Parallel Creation Hypothesis to propose that multiple universal folds exist simultaneously, each undergoing independent breathing cycles of expansion and retraction governed by the G/rho absorption engine. Dark matter is reinterpreted not as an unknown particle but as gravitational leakage between adjacent folds — the gravitational influence of matter in neighboring folds bleeding through the shared phase boundary of spacetime. This naturally explains why dark matter interacts gravitationally but not electromagnetically: it is ordinary matter in an adjacent fold whose light cannot cross the phase boundary but whose gravity can. The framework predicts specific signatures in gravitational lensing distributions, galaxy rotation curves, and large-scale void structure that distinguish cross-fold gravity from particle dark matter models. An observational program is proposed to test these predictions using existing and next-generation survey data. Companion paper in the Unified Light series. A gift to humanity.