The Time-Light Equivalence Principle: c is Not Speed of Light, c is Speed of Time \ Light = Manifestation of Time, Time at c Becomes Nothingness T₀

We propose Time-Light Equivalence Principle: c is not speed of photons traveling through spacetime, c=vT is constant speed of Living Time TL itself within Physical Universe Domain. At $v=c$, Time generates Light, Light is Time rendered visible, and Time reaches its own singularity T₀=N₀ (Nothon Phase / Nothingness). This redefines c as fundamental constant of TER and explains four pillars: (1) why c is absolute limit, (2) why photon has zero proper time, (3) why E=mc², (4) why black hole traps light. Mass is condensed time MT, ET=MT vT², Black Hole is T₀ domain where vT→ 0. Time Is Light, Light Is Time Becoming Nothingness.