"S³ Spatial Topology, Sol Geometry, and JWST Anomalies. '' Paper X in MEF Series

We derive cosmological predictions from the twelve-dimensional Riemannian framework M₁₂ = (S¹ₒ₎₋ S³) K₈, which in Papers I–VIII obtained the complete CKM and PMNS mixing matrices, the cosmological constant (₄₅₅ 10^-122 M₏₋⁴), the Higgs boson mass, the Weinberg angle, and the dark matter abundance ratio—all from manifold geometry with zero continuous free parameters. Three cosmological results emerge without observational input. First, the K₈ spectral bridge predicts the baryon acoustic oscillation scale L₁₀₎ = e^-3/2 3/ 146 Mpc, in agreement with the observed 147 0. 3 Mpc to better than 1%. Second, the internal orbifold aspect ratio ₂ = 1. 86 matches the ratio of cosmological imprint scales rₛ/d₄ₐ 1. 86 to 0. 5%. Third, the Sol temporal geometry, through its Anosov flow coupling to protogalactic angular momentum, produces a parameter-free disk formation timescale ₀₋₈₆₍ = 2 t₃ₘ₍ derived from the twelve-dimensional Einstein equations—enabling disk galaxy formation in protocluster environments by redshift z 8. The Sol mechanism provides a unified explanation for the excess massive galaxies (Labbé et al. 2023) and the unexpectedly early ordered rotating disks (Ferreira et al. 2023) observed by the James Webb Space Telescope: these are the same galaxies, formed through a single geometric mechanism. The Spinᶜ holonomy of K₈—independently responsible for the Weinberg angle at particle scales—produces CMB low-multipole power suppression of 8\% at = 2 and 14\% at = 3, consistent with the Planck observation of 10–15% deficit. All geometric structures were established before any comparison with JWST data. Six falsifiable predictions are presented, testable by JWST, Euclid, DESI, and the Roman Space Telescope within the present decade.