Law of Efficiency_Cosmic_Expansion

Abstract Contemporary cosmology overwhelmingly interprets cosmic expansion as a force-driven process, attributing observed acceleration to Dark Energy acting as a propulsive agent. This interpretation is not observationally mandated; it is an inferential choice. In this work, we demonstrate that this choice misidentifies the causal structure of expansion and directly gives rise to the Vacuum Catastrophe. We show that cosmic expansion is not driven by an applied force, but is instead the natural relaxation of a constraint imposed during the Early Inflationary period. By treating the Universe as a physical system subject to standard principles of work, energy, and equilibrium, we establish a critical distinction between force-driven motion and motion produced by constraint relaxation. Using the physically unavoidable consequences of plastic deformation under extreme stress, we argue that Inflation permanently redefined the equilibrium geometry of space-time. Post-inflationary expansion must therefore be understood as the restorative relaxation of a Type 2 (compression) system under gravitational constraint, not as ongoing propulsion. This reversal of causal accounting resolves the sign error underlying the ~10¹²⁰ vacuum energy discrepancy (commonly referred to as the'Vacuum Catastrophe') without modifying General Relativity, Quantum Field Theory, or conservation laws.We further formalize this framework using the Law of Efficiency (Availability Constraint), identifying availability as the governing causal quantity and entropy as a record of irreversible consumption rather than a driver of dynamics. Within this ordering, accelerated expansion reflects diminishing constraint, not added force. Dark Matter is reinterpreted as a necessary gravitational byproduct of the work performed during expansion—an irreversible “entropy tax” required by conservation and the Arrow of Time.This constraint-relaxation model preserves all validated physics while eliminating the need for unexplained propulsive agents. It offers a mechanically grounded, falsifiable, and conceptually conservative foundation for cosmic expansion, unifying thermodynamics, gravity, and cosmology under a corrected causal framework.