Abstract The Dynamic Inflow-Expansion (DIE) hypothesis is a theoretical framework that resolves the gravitational singularity by redefining the internal mechanics of black holes through the MATRIx (Mass-Acceleration-Time-Relativistic-Inflow-Expansion) model. By treating the event horizon not as a terminal boundary but as a phase-transition interface, where gravitational inflow is converted into a localized expansion of spacetime. This model suggests that the "missing" energy density associated with dark energy is a direct result of this internal expansion leaking into the broader cosmic background. By aligning general relativity with a discrete, non-singular interior geometry, the DIE hypothesis attempts a scalable solution to the information paradox and a novel mechanism for the accelerated expansion of the universe. The MATRIx (Metric Accretion and Torsional Relativistic Inflow Exchange) Hypothesis proposes that the observable universe may behave as an open, non-equilibrium dissipative manifold embedded within a higher-dimensional gravitational environment. In this framework, cosmological expansion is interpreted not as an intrinsic property of vacuum energy but as the consequence of continuous metric inflow from an external spacetime domain. The model attempts to reinterpret several cosmological anomalies, including cosmic birefringence, galactic rotation curves, and the Hubble tension, within a unified geometric framework. This work synthesizes existing observational and theoretical research, including cosmic microwave background polarization studies, modified gravity theories, and models of cosmological thermodynamic, to propose a speculative cosmological architecture in which spacetime volume is dynamically supplied by an external manifold.
David J. Lee (2026) studied this question.