Rupture-Containment Cosmology: A Material Origin Hypothesis for CMB Anomalies, Expansion Dynamics, and Pre-Bang Continuity

Rupture–Containment Cosmology (RCC) is proposed as a causal, medium‑based alternative to the ΛCDM model. Instead of originating from a vacuum fluctuation and singularity, the observable universe is framed as the expansion following the rupture of a pre‑universal medium of perfectly uniform density and pressure. This rupture released stored tension, initiating decompression and an expansion field that observationally mimics spacetime.

Unlike ΛCDM, RCC requires no dark energy or inflationary postulates. Phenomena such as late‑time acceleration, early galaxy formation, fine‑structure anomalies, and supernova dimming arise naturally from refractive drag, decompression gradients, and residual tension in the medium. RCC preserves the calculational validity of GR, SR, and quantum mechanics within their stability zones, but reframes them as approximations of underlying medium behavior.

RCC generates testable predictions. Chief among them is a near‑term laboratory falsifier: an atomic clock embedded in a slowed‑light Bose–Einstein condensate should accumulate less time than its peers — a direct divergence from GR, SR, and QFT. Additional predictions include drift in physical constants aligned with decompression gradients, suppression of Hawking radiation through medium encapsulation, and vortex‑driven galaxy spin.

This is less a contest of mathematics than of foundations. Just as the Ptolemaic and Copernican systems both described the sky with different assumptions, GR and RCC both fit observations but rest on different principles: GR frames invariance through geometry; RCC restores causality through a medium.