Sequential Time Theory, Volume 3: The Chronological Deception

The standard cosmological model (Lambda-CDM) postulates the existence of Dark Energy to explain the accelerating expansion of the universe. While statistically robust, the model lacks a fundamental physical origin for this energy and faces the persistent "Hubble Tension." This paper applies Sequential Time Theory (STT) to cosmology, proposing a paradigm shift where the physical unit of time is not invariant but evolves due to the changing cosmic gravitational potential and quantum coherence scales. We construct a unified model integrating General Relativistic time dilation with a Quantum Damping term derived from STT Vol.2. This model was tested against the full Pantheon+ Unbinned Supernovae dataset (N=1590), utilizing the full covariance matrix including systematic errors. The results reveal that the STT model achieves a goodness-of-fit (chi-squared = 1402.71) that is statistically indistinguishable from the standard Lambda-CDM model (chi-squared = 1402.92) using SNe alone. Significantly, the derived quantum transition scale z_dec = 1.50 (+0.42 / -0.33) is consistent with the peak epoch of cosmic star formation. This suggests that "cosmic acceleration" could be reinterpreted as an illusion caused by the phase transition of time from a quantum-coherent regime to a gravity-dominated classical regime, potentially offering an alternative to the standard Dark Energy hypothesis.