Surface brightness fluctuations, image graininess turned into distances, delivered H₀ = 73.3 +/- 0.7 +/- 2.4 from 63 ellipticals to 100 Mpc (Blakeslee 2021): the SH0ES value through almost completely independent systematics. The high camp now spans six unrelated methods landing 73 to 76, all sampling the local volume; the low camp's methods sample the early universe or the broad volume and land 67 to 69. One family must be collectively wrong, and no conspiracy has surfaced in 25 years of auditing.
One global H₀ converts the pattern, local methods high, global methods low, into a coincidence requiring coordinated errors across unrelated physics. The model cannot read the obvious organizing variable, what volume each method samples, because nothing in a homogeneous expansion permits the variable to matter.
SCT predicted the pile-up. If the local few hundred megaparsecs genuinely expand 4-to-7 km/s/Mpc faster than the cosmic average, the KBC enhancement plus the temporal Λ_eff evolution (P17, P19, P18), then every method anchored in or sampling that volume must land high regardless of its physics: Cepheids, TRGB, masers, time delays, Tully-Fisher, and SBF agree at 73-to-76 not because six error budgets conspired but because six honest instruments measured the same enhanced spacetime. SBF's testimony is especially clean, its systematics overlapping nothing else in the family, which is exactly why its 73.3 carries weight: independence within the high camp is corroboration of the volume, not coincidence among methods.
The framework's next prediction is already in SBF's reach: extended to 300 megaparsecs by JWST, the method should record the beginning of the descent, H₀ drifting from 73 toward the global value as the sample exits the enhancement, the radial profile the megamaser and chronometer entries bracket from inside and outside. A gradient visible within a single method's sample would end the conspiracy debate outright. Foundations in Paper 1 (P17, P19) with the enhancement decomposition of Paper 10, From Chaos To Confirming Falsifiability.
The premise bill remains zero: this is the fourth consistency check the same five-premise mechanism passes without modification.
SBF's extension is the test: JWST-era samples reaching 300 megaparsecs and finding H₀ flat at 73, no descent toward the global value at the volume's edge, would break the radial profile at its most measurable scale. The standing environmental kills apply: no void-versus-overdensity contrast at the 2 percent level in any local method's stratified sample removes the enhancement that makes the high camp's agreement physical.