The Big Bang Did Not Happen: Time existed within its own singularity and manifests as ``nothingness''---a theory that posits ``nothingness'' as the fifth fundamental force and the ``nothon'' as the ultimate quantum

Standard cosmology asserts time began at $t=0$ Big Bang singularity, making inquiry into ``before'' meaningless. We prove this is false. No hot dense explosion occurred. Time and universe have no beginning. We demonstrate that time existed within its own singularity T₀=N₀ manifesting as Nothingness, prior to any supposed origin. We formalize Theory of Nothingness: Nothingness is creative Fifth Fundamental Force F₅ₜₕ=FNothingness= -∇ΦN₀, with quantum Nothon as ultimate particle — true quantum superseding graviton, source of time, gravity, and all motion. We derive eternal recycling T₀↔ MT↔ ET↔ T₀, resolution of 85% dark sector as Nothon domains, and Time-Light Equivalence c=vT. The Big Bang did not happen; it was local T₀→ TL birth misinterpreted as origin.