This paper is the final and concluding work in the Time Field Theory (TFT) series. Based on the axiom of total spacetime velocity conservation \ (c² = vₜ² + vₛ²\) and 45° primitive symmetric angle dynamics, we derive the reduced Planck constant \ (\) and gravitational constant \ (G\) entirely from first-principles projective geometry. The derivation contains no free parameters, no empirical inputs, and no ad-hoc assumptions. This work completes the full unification of spacetime structure, gravity, electromagnetism, quantum behavior, and all fundamental physical constants, including \ (\), \ (₀\), \ (₀\), \ (G\), and \ (\). The entire theoretical system is self-consistent, quantitatively verifiable, and dimensionally closed. This paper marks the logical completion of the Coordinate–Projection Unified Spacetime Theory.
Huowang Huang (Fri,) studied this question.