Paper I of this series established that time arises from quantum echo damping in a viscoelastic spacetime medium and named the framework the Echoflux Theory of Time (ETT). Paper II built the complete formal theory: the Echoflux field, the Lagrangian, the conservation laws, and six theorems — all from the single constitutive law σ = Eε + ηε˙. Both papers left two parameters open: γ (the damping rate) and ω (the natural frequency). Paper II identified the magnetic field as their physical source but did not formalise that identification. This paper — Paper III — formalises it completely. The Magneto-Echoflux Theory of Time (METT) is the physical realisation of ETT. METT does not merely substitute γ = 1/T2 and ω = ωL into the ETT formalism. It builds the full physical theory of why those substitutions are correct, what new formal objects arise from the magnetic coupling, and what that coupling means for time in our universe. The central claim of METT: time is the fourth dimension of spacetime, actively produced by the magneto-echoflux interaction at every point where spin-bearing matter exists in a magnetic field. The present moment has a physical beginning — the quantum event that disturbs the Echoflux medium. It has a physical width — the specious present τpres = T2, the window over which the medium carries coherent phase information. It has a physical end — the asymptotic decay of the Echoflux field below the coherence threshold. And it moves forward — carried by the temporal flux vector T, the new formal object of METT that couples the echo potential to the magnetic field. METT introduces three postulates, three new formal objects (Ê, ϕ, T), a five-term Lagrangian, five conservation laws, and the METT proper time correction ΞMETT. Five experimental predictions are derived and distinguished from standard theory by their field-scaling laws and magnitudes. Applications are developed in NMR, MRI, neural tissue, quantum computing, and gravitational waves.
Jossy Jassy Jagwe (Tue,) studied this question.