Topological Criticality Under the Event Horizon as the Origin of FRW Cosmology and CMB Fluctuations

This work proposes a topological mechanism for the emergence of the FRW cosmological phase based on a collision between metric sectors with distinct topological cores. The model naturally produces large-scale CMB anomalies, including hemispherical asymmetry, low‑ℓ power suppression, and preferred-axis signatures. The framework treats the FRW phase as a metastable region formed after a topological core interaction, with dark matter and dark energy emerging as effective phenomena of the post‑collision metric configuration. The approach provides a unified explanation for several observational tensions without introducing new particles or modifying general relativity. The manuscript outlines the geometric structure of the colliding cores, derives the resulting metric sectors, and connects them to observable CMB features. This preprint is intended to stimulate discussion on topological origins of cosmological structure and invites further analysis using Planck and future CMB datasets.