A Brane-Coupling Framework for Dark Matter, Dark Energy, and Tachyonic Structures in Cosmology

We propose a cosmological model in which early-universe phase transitions created high-energy pockets that locally prevented the full curling of extra dimensions. These regions mediate interactions between branes, giving rise to dark matter and dark energy effects without altering standard cosmology. Filamentary structures guided by these pockets influence galaxy formation and cosmic structure, while tachyonic excitations offer potential explanations for subtle cosmic anomalies. The model suggests observable signatures in CMB patterns, gravitational lensing, cosmic rays, and large-scale structure simulations.