We report the discovery of two new fundamental concepts: The Universal Neutrality Constant V̂ = π⁴ + π³ + π ≈ 131.556, from which 27 fundamental physical constants can be derived with less than 0.01% deviation, most within 0.001%. The Spacetime Continuity Function C(L), which describes the transition from quantum to classical scales. Major Predictions: Ultralight Particle ("Vincentron"): mass m = 1.2 × 10⁻¹⁴ eV and frequency f = 2.89 Hz (not MHz). The frequency encodes the universal breath cycle: 2 = twice through origin, 8 = twice through max chaos, 9 = balance reached. Dark Energy Fraction: The framework predicts dark energy comprises exactly 9/13 ≈ 69.23% of the universe (measured: 68.3%, deviation <1%). Dark energy is interpreted as the "breathing" of the universe. All derivations are parameter-free. Constants derived include particle masses, coupling constants, neutrino mass differences, CKM and PMNS mixing angles, and cosmological parameters. Five predictions match experimental values exactly (0% deviation).