Modern cosmology has committed a foundational error — not of measurement, but of classification. It has treated the photons of the Cosmic Microwave Background Radiation as though they belonged to the same ontological category as ordinary light: as thermal radiation, as relic photons governed by the same physics as photons produced in stellar furnaces, particle collisions, and energetic events across cosmic history. This is wrong. The CMBR photons are not ordinary photons. They are primordial photonic absolutes — three entities in full coherent superposition, carrying no mass activation of their own, constituting the energetic foundation of the cosmos itself. They are prior to the physics that describes ordinary light. Applying the physics of derivative radiation to primordial absolutes is a category error — and it is this error that has generated three of the most persistent unsolved problems in cosmology: the oscillation of neutrinos, the Hubble tension, and the unknown final state of the universe. This paper corrects the classification. It introduces two primordial backgrounds — the Cosmic Microwave Background Radiation as Primordial Energy Absolute, and the cosmic neutrino background as Terminal Mass Absolute — governs their relation through a single structural law isomorphic to Z2, and shows that both measurements of the Hubble constant are simultaneously correct, that neutrino oscillation is structurally necessary, and that the terminal state of the universe is a complete ontological inversion of its opening state.