Deriving the Theory Zero Coupling Coefficient

The Theory Zero framework models the observable universe as a permeable thermodynamic sector within a closed-loop multiverse, governed by a dynamic boundary exchange coefficient . This paper derives the exact numerical value of by analyzing the Eridanus Supervoid (the CMB Cold Spot) as a physical thermodynamic exhaust vent. To resolve dimensional consistency, this derivation calculates the absolute mass-energy payload of the supervoid in three dimensions, accounting for both photon radiation and matter density contrasts at the epoch of recombination. Furthermore, the spacetime area of the exhaust vent is calculated via a two-phase integral from the Planck time to recombination , accounting for the universe's transition from radiation-domination to matter-domination. The resulting derivation yields a constant boundary flux flow rate of , establishing a physically realistic transmission velocity for cosmic boundary mechanics.