Lensed quasars yield angular-diameter distances geometrically: image configuration plus delays plus lens kinematics, no ladder anywhere. The early sample's distances imply H₀ in the low 70s at per-lens precisions of 10 to 20 percent, with the mass-sheet and kinematic degeneracies entering openly as model ingredients, and the line-of-sight convergence, each lens's environment, sitting explicitly in the inference where other methods bury it.
The model processes lens distances toward one number: per-system environmental convergence is a nuisance to marginalize, scatter between lenses is statistics, and the method's verdict is whatever its average says about the global H₀. The per-sightline structure the technique uniquely resolves is exactly what the one-number framework discards.
SCT values this method for what the standard framing wastes: it measures D_A system by system, along identified sightlines, with environment as an explicit term, which makes it the designed instrument for an inhomogeneous Λ_eff field (P17, P19). The framework's registered expectations transfer directly: lens distances should scatter with line-of-sight environment beyond the modeling errors, the implied H₀ should sit high for systems behind underdense corridors and relax toward the global value behind overdense ones, and the external-convergence term should absorb the mesh's contribution (P51) just as it does in the time-delay program, real physics inside what the model calls a nuisance parameter. The double-source-plane ratios add the shape test: distance ratios across two redshifts probe the Λ_eff evolution that displaces the D_A turnover and the DESI w(z) fits.
At the lens-model level the coherence layer enters once more: lens galaxy masses carry the amplification structure A(r) (P50, P52), so kinematic-plus-lensing mass profiles fit with NFW-class templates inherit the same template bias documented across the cluster entries, one more place where the registered profile family meets data built to test it. Foundations in Paper 1, From Chaos to Convergent Foundations (P17, P19) with the mesh-lensing structure of Paper 11, From Chaos to Cosmic Collisions.
No new premises: the standing field and the standing profile, measured by the one distance method that keeps its environments visible.
The population test arrives with the samples: hundreds of Rubin-Euclid lenses with ELT kinematics finding lens distances statistically independent of line-of-sight environment, scatter at pure modeling levels, H₀ uniform across sightline classes, would remove the field's signature in the cleanest per-sightline data available. The shape side cuts too: double-source-plane ratios tracking constant-Λ evolution exactly would constrain the Λ_eff dynamics at the redshifts where the quasar Hubble diagram claims they show.