V.R243 — Scope note: CMB predictions C2, C5, C6

CMB predictions C2, C5, C6 involve mapping tau-native quantities (sector couplings, inflation parameters) to standard CMB parametrization (Omega_b, n_s, r) through the calibration cascade, introducing residual uncertainties. Stated precisions (~2-5%) are estimates, not rigorous error bounds. Scope: conjectural.