Resolving the Hubble Tension and Dark Matter Anomalies via Osmotic Spatial Decompression in a Closed Thermodynamic Universe

The ongoing gap between the local expansion rate of the universe (H0) and the global rate inferred from the Cosmic Microwave Background has triggered a genuine crisis for the standard Lambda-CDM model. Most attempts to patch this Hubble Tension rely on early dark energy or mathematical modifications to General Relativity—approaches that frequently require injecting ad-hoc, unconstrained variables into the framework. We propose here a purely thermodynamic resolution instead. By modeling the universe as a closed system governed by information conservation, we can fundamentally redefine Dark Energy. It is not a uniform, static vacuum energy but rather an emergent, dynamic osmotic pressure. When we apply macroscopic harmonic dampening to the conservative boundary of the local KBC Void (delta_b ~ 0.15), the elevated local Hubble constant (H_local ~ 73.1 km/s/Mpc) mathematically drops out of the global baseline (H_global ~ 67.4 km/s/Mpc) as a direct, natural consequence of emergent Substrate Tension. Beyond resolving expansion variances, this closed-system boundary establishes a foundational cosmic noise floor. This rigid geometric limit allows us to derive the MOND acceleration threshold (a_0 ~ 1.1 x 10^-10 m/s^2) from first principles and ultimately resolves the Bullet Cluster paradox without the need for collisionless dark matter particles.