Two recent observations challenge dark matter models on sub-galactic scales: (i) a 9.5 × 106 M⊙dark subhalo in JVAS B1938+666 with a flat surface-density profile truncated at 139±4 pc and a central unresolved point mass containing 19% of the total mass (Vegetti et al. 2026, Nature Astronomy); and (ii) anomalously strong large-scale clustering of isolated diffuse blue dwarf galaxies (Zhang et al. 2025, Nature), requiring a self-interacting dark matter (SIDM) cross-section σ ≈800 cm2 g−1. We demonstrate that both observations arise naturally from the G2-brane framework's T2/T2* brane- current dephasing physics, but that a correct treatment reveals two distinct scales at which hyperbolic geometry operates: (1) the local curvature δK = 8πGρ/c2 sourced by the subhalo's own density, which drives irreversible dephasing and generates the 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 (Fri,) studied this question.