g(z): The Epoch-Dependent Hubble Bias

The Hubble tension — the 4.85σ discrepancy between the Planck CMB measurement of H₀ = 67.36 ± 0.54 km/s/Mpc and the SH0ES Cepheid measurement of H₀ = 73.04 ± 1.04 km/s/Mpc — has resisted resolution for over a decade. We derive a function g(z) from the Feigenbaum universality constants α = 2.502907875 and δ = 4.669201609 that predicts precisely what H₀ value each measurement technique extracts from the cascade expansion history as a function of its effective redshift. The two cascade limits are: SH0ES (z → 0): g(0) = 1 + 1/[α(δ+1)] = 1.07047, predicting H₀ = 73.017 km/s/Mpc (residual 0.02σ); Planck (z = 1100): g(1100) = 1 − δ/(α+δ)³ × 0.833, predicting H₀ = 67.491 km/s/Mpc (residual 0.24σ). Both measurements are correct. They are measuring the cascade expansion history at different cosmic epochs. The Hubble tension is resolved: it is not a conflict in measurements but a cascade scale dependence — the same physics that appears in the Eddington staircase (Paper 56) and the cascade Λ derivation (Paper 50). Zero free parameters.