Abstract
We consolidate the predictive content of Twistor Configuration Geometry (TCG) into a single paper, separating forward predictions from no-go consequences and structural constraints. The framework’s principal forward prediction is the spin-1 entry of the integer-spin coupling tower derived from postulate P6: at this gives relative to gravity, the only experimentally accessible case at present sensitivity (the entries match observations O1 and O2 as anchors; entries are effectively decoupled).
Beyond this, one no-go theorem and three structural constraints sharpen the framework’s falsifiability:
(i) the weak-angle relation cannot be the on-shell weak angle, since this interpretation gives GeV against measured GeV at the 60σ level — the relation is constrained to be the low- effective leptonic mixing angle;
(ii) the cosmological-constant relation requires an unstated lightest-charged-lepton selection rule, since muon or tau substitution overshoots by to ;
(iii) the postulate P5’ (Zhang 2026, Electroweak Boundary), (equivalently ), requires any future first-principles derivation to reproduce at sub-percent precision from a canonical SU(2) gauge-kinetic normalization, with the line-deformation bundle as the current natural target — replacing the original dimensionful target GeV (v1 §3.3), now retired with the closure of the original P5 in TCG v3 §6.2/§7.2;
(iv) any future correction mechanism for the fine-structure relation must produce the specific residual in sign and magnitude, not merely “a small correction.”
We also pre-register a guardrail on the chamber-weighted-volume functional to prevent look-elsewhere abuse: only weight functions with structural motivation in the framework should count as legitimate identifications.
The paper’s honest summary: TCG’s predictive profile is mostly defensive (one no-go theorem and three structural constraints, plus an guardrail), with a single forward prediction (spin-1 fifth force) at experimentally accessible sensitivity. Strong-form vindication of the framework awaits this prediction’s confirmation.