Z.I.P.P.E.D. — A Geometric and Information-Theoretic Completion of Relativistic Spacetime

This manuscript presents Z.I.P.P.E.D. (Zwanenburg Inverse Proportionality Principle of Equilibrium Dynamics), a closed theoretical framework proposing a geometric and information-theoretic completion of relativistic spacetime.The central contribution of Z.I.P.P.E.D. is the introduction of a universal elastic curvature coefficient—the Zwanenburg Grade—which extends classical spacetime geometry by incorporating elastic response and inverse-proportional dynamics as foundational principles. Within this framework, spacetime is treated not as a purely rigid metric manifold, but as an elastic, information-balanced structure whose stability emerges from fixed proportional relationships rather than free expansion.The theory unifies geometric curvature, energetic equilibrium, and informational stability into a single formal structure. A generalized Lagrangian is derived, preserving compatibility with General Relativity while resolving long-standing conceptual tensions between curvature, energy conservation, and dynamical stability. The resulting model is mathematically closed, internally consistent, and scale-independent.This work does not introduce speculative mechanisms or experimental devices. Instead, it focuses on the foundational mathematical architecture of the theory, providing axioms, constants, and derivations intended for analytical scrutiny and peer evaluation.Z.I.P.P.E.D. is presented as a theoretical completion layer, offering a stable geometric and informational substrate upon which future physical, cosmological, or technological interpretations may be constructed. ZIPPEDZwanenburg TheorySpacetime GeometryElastic SpacetimeInformation-Theoretic PhysicsGeometric FoundationsGeneral Relativity ExtensionInverse Proportional DynamicsTheoretical PhysicsCosmological StabilityLagrangian FormalismFoundational Physics