Paper V: The Substrate Field: Unifying Power in Physics -- A Synthesis of the Five-Part Series

This paper concludes the five-part series on the substrate field theory. It synthesizes the core results from the previous four papers and the mathematical formulation of Paper VI, demonstrating the framework's unifying power across physics. Starting from the single postulate that any finite speed requires a physical medium, the theory derives the existence of a universal substrate field with rigidity K and effective density ρ0 that determine the speed of light c = sqrt (K/ρ0) (Paper I, VI). Using only optical refraction data, Paper I obtained ρ0 ≈ 4. 4 × 10³ kg/m³ and K ≈ 4. 0 × 10²0 Pa. From this foundation, the substrate theory provides a unified explanation for a wide range of phenomena: cosmological redshift as dissipation (not expansion) and the Hubble relation (Paper III, VI), Olbers' paradox (Paper III), angular momentum losses in celestial bodies via a universal dissipation coefficient α ~ 10^-20 (Paper III, VI), the absence of dark matter and dark energy (Paper II, III, VI), the origin of the CMB dipole as absolute motion toward the cosmic center (Paper III, VI), the cyclic universe with a central mass (Paper II, III), the emergence of quantum mechanics from the substrate's microscopic granularity and intrinsic dissipation (Paper IV), the thermodynamic arrow of time (Paper II, III, VI), and the unification of gravity with other fundamental interactions via substrate density gradients (Paper II, VI). The theory makes testable predictions and eliminates ad hoc entities such as dark matter, dark energy, inflation, and quantum postulates. It offers a coherent, self-consistent description of physics from the smallest scales to the largest. Part V of the Substrate Field Theory series