We propose that the flat brane (κ = 0, 3, 6 triangular tiling) is the cosmological equilibrium state of the One-Octonion Brane-Bulk Framework, but that in regions of sufficiently strong gravitational acceleration (a ≫a₀), the brane locally relaxes toward its hyperbolic parent geometry (κ → −1, 7, 3 heptagonal tiling). This T1 brane relaxation is physically distinct from the T2* dephasing (gravitomagnetic lensing) discussed in §2. Together they predict a novel form of geometrically induced birefringence wherever the brane curvature transitions between regimes. We demonstrate that this framework — with zero free parameters beyond a₀ = cH₀/2π = 1. 042 × 10 ¹ m/s² — simultaneously explains: (i) the upper kHz ⁻ ⁰ quasi-periodic oscillation (QPO) of 4U 1636-536 to 0. 1% accuracy; (ii) the 3: 2 twin-peak ratio of high- frequency QPOs in GRS 1915+105 to 0. 9% accuracy; (iii) the universal occurrence of QPOs in all compact accreting systems via an exact theorem (κₐᵩᵩ = −1 at the ISCO for all masses) ; (iv) the repeating/non-repeating FRB dichotomy; and (v) the mass-dependent GW birefringence hinted at in GW190521. New observational predictions are made for polarimetric monitoring of Betelgeuse's companion Siwarha (November 2027 window) and for polarimetric decomposition of the SN 2024afav magnetar light curve. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10. 5281/zenodo. 19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M. D. , University of Minnesota. ORCID: 0000-0002-1143-941X.
Bharathi Jagadeesan (Tue,) studied this question.