JWST supports both sides of the Hubble tension simultaneously: SH0ES Cepheid photometry is confirmed clean, sustaining H₀ = 73, while CCHP's JWST-only TRGB and JAGB analyses give 68.8 and 67.8, agreeing with Planck. The distances to the same galaxies agree at 1 percent across methods, yet the derived H₀ differs by 4 to 5 percent, the gap living in calibrator-subsample selection and analysis priors rather than in the rungs.
ΛCDM requires one global H₀, so it reads the spread as error: someone's priors are contaminating someone's answer. The model cannot entertain the alternative, that subsamples weighting different galaxies, environments, and sightlines are measuring genuinely different local expansion rates, because a constant Λ makes such differences impossible.
SCT replaces the hot-dense-center with a superluminal collision, and the constant Λ with the dynamical ratio Λ_eff(x,t) = C × Λ_parent(x,t) / λ_local(x,t) (P17, P19). The locally measured expansion then depends on which sightlines and environments a calibrator set samples: void-weighted paths read high, overdense-weighted paths read lower, with frame-tree corrections of 0.5 to 1 percent separating cluster-environment from field-environment calibrators (P10). Under this physics the JWST stalemate is the expected outcome: two rigorous teams agreeing on distances while extracting different H₀ values, because their supernova calibrator subsamples weight the Λ_eff field differently. The prior contamination is real, but it is contamination by physics, not by error.
The framework even orders the values: methods anchored more heavily toward the local underdense volume land near 73, while selections diluting that weighting drift toward the global 67 to 70. The 4 to 7 km/s/Mpc spread among careful analyses matches the full environmental enhancement SCT derives for the KBC volume, which is also why the megamaser geometric value sits at 73.9 while CCHP's JAGB sits at Planck's number.
This is the same environment-dependent expansion behind the Migkas anisotropy and the DESI artifact. There is no need to declare either team wrong; the model beneath them was assuming a constant the universe does not supply.
The registered kill: a Pantheon+ or DESI supernova analysis implementing the full frame-tree and environment correction and finding no systematic H₀ offset between cluster-environment and field-environment calibrator subsamples at more than 2σ falsifies the environmental reading, returning the JWST split to the status of someone's mistake. Conversely, if the corrected analysis converges both teams toward one intermediate value, the contamination was physics, as SCT requires.