Lack of Angular Correlation

One of the most statistically significant anomalies in the CMB is the near-vanishing of two-point temperature correlations on angular scales larger than about 60 degrees. ΛCDM predicts substantial power on these scales through the Sachs-Wolfe plateau, yet the observed correlation function is consistent with zero — and even slightly negative — at large angles. Explanations within ΛCDM typically invoke cosmic variance or statistical chance, but the probability of this occurring in a standard Gaussian random field is only a few percent. SCT explains this suppression as a direct consequence of the collision thermalization process. The superluminal collision front swept the entire overlap volume simultaneously, depositing energy uniformly. This is not the same as inflation generating perturbations from quantum fluctuations: the thermalization produced a nearly uniform initial state with suppressed large-scale power precisely because the collision energy was deposited coherently rather than stochastically.

Any pre-existing large-scale perturbations in the colliding pockets on scales larger than the overlap volume size would not survive thermalization — they are erased by the collision, leaving a nearly featureless large-angle temperature correlation. Perturbations on scales smaller than the collision coherence length are preserved and amplified through acoustic oscillations, generating the observed acoustic peak structure. The lack of angular correlation at large scales is therefore a direct prediction of the collision's coherent thermalization, analogous to why a well-stirred fluid has suppressed temperature fluctuations on scales larger than the stirring scale. SCT thus converts the CMB's most puzzling large-angle anomaly into a confirmation of its central mechanism — the superluminal collision simultaneously producing a hot uniform plasma and erasing super-horizon correlations.