Forbidden Regions Without a Global Predictor: U3 by Prohibition and the Cost of Empirical Content

This paper is the fortieth in a sequence developing an interpretive framework that redescribes physical reality as a causally consistent history of information updates. It is the synthesis capstone (third of three) of the eleventh grouping — a Gate-VII / U3 audition — and closes that grouping. The two prior panels audited independent seams and both returned nulls: Paper 38 (a dynamical seam — the gravitational record-export channel is not framework-forced-distinct, because internal-energy variance is a preparable state property) and Paper 39 (a structural seam — record-relevance is infrared and the induced-Newton-constant counterterm is ultraviolet, so the record reading is inert on induced gravity). Its move is that empirical content need not be a positive, point-valued forecast: a framework that forbids an otherwise-allowed region has content in the Popperian sense. So the methodological Global Predictor — the demand that content must be a point prediction from a god's-eye vantage — is retired in general. The substantive question is whether the framework's combined world-side constraints carve a nonempty, ALAC-specific forbidden region. We construct that region as the infeasibility set of an explicit constraint system over demand targets (publicity redundancy, gravitational-negligibility tolerance, localization) and free variables, keeping the publicity information tolerance and the gravitational tolerance distinct, and using Paper 33's three-valued negligibility bracket correctly. A normal-form worked example maps the publicity demand to a stored-bit demand via the Bekenstein storage floor: a realistic record lies decisively outside the forbidden region, while membership requires an extreme stored-bit count. The specificity screen is carried out against the closure of standard physics, scoped to the Bekenstein-dominated regime (the Salecker-Wigner, Bousso, Landauer, and Heisenberg bounds are checked and found inactive or dominated). The forbidden boundary is the Bekenstein storage floor; the framework's marginal localized-excess increment could move it only through an arrow-specific decoherence term (Paper 38) or a record-species restriction (Paper 39), both null, and a generic object storing the same bits pays the same standard costs. Hence the framework's forbidden region is contained in the standard one and the ALAC-specific difference is empty (a one-sided inclusion under the lower-floor normal form, not exact physical-region identity). A complete decision tree over the two prior verdicts places this paper in the cost-ledger cell: adoption, typing, and matched-warrant witnesses alone do not generate U3. The paper names the specific additional world-side postulate each seam would require — a record-export postulate forcing a non-generic internal-energy variance (from 38), or a scheme-robust ultraviolet bridge from record-relevance to the counterterm (from 39) — each a commitment, not a consequence of the discipline. The substantive Global Predictor stands even though the methodological one falls; the eleventh grouping closes on a precise, honest boundary. Presents no new physics; results are interpretive (L2) on imported physics (L1).