Observations show coherent alignments of cluster major axes over >30 Mpc up to 200 to 300 Mpc (Binggeli effect; West 2017). Brightest cluster galaxies align with cluster major axes and surrounding filamentary structure. ΛCDM simulations predict only weak local-tidal alignment to ~30 Mpc, far short of the observed coherence scale. The alignment fully in place at z > 1.3 leaves insufficient time for tidal reorientation.
The standard model has cluster orientations set by anisotropic accretion + tidal-torque coupling at the few-tens-of-Mpc scale. Recovering the observed 200 to 300 Mpc coherence demands either much stronger long-range tidal coupling (which conflicts with simulations) or accretion-history fine-tuning. The model has no source for the high-z alignment.
SCT replaces the hot-dense-center with a superluminal collision and the thermalized debris field. From this single change, cluster orientation alignments at 200 to 300 Mpc are direct shared-cascade-J inheritance signatures. Cluster orientations are set at the formation epoch from the shared cascade-stream J vector that propagates coherently across cosmic-web filaments (P22, P31, P32, P58, P59, P60). The cascade impact-parameter geometry of the parent collision deposits the J vector that aligns clusters across multi-Mpc to multi-hundred-Mpc scales.
Once the cluster orientation is set at deposition, it is preserved by Noether's theorem (angular momentum conservation): the cluster's inherited J cannot be erased by subsequent thermalization or hierarchical assembly. This is why the BCG-cluster alignment is fully in place at z > 1.3 (only 4.3 Gyr after Big Bang, insufficient time for tidal accumulation): the alignment is inherited at formation rather than built up gradually. Per Paper 13 Pred 25, the alignment persists to 200 to 300 Mpc and strengthens with redshift following ellipticity e ≈ 0.33 + 0.05z.
The same M3 framework that produces the cosmic-filament J-vector inheritance (recid 83), satellite-plane co-rotation (recid 130, 131), the radio + quasar axis alignments at gigaparsec scale (recid 162), and the broader cascade-J cosmic-web phenomenology accounts for cluster orientation alignments. There is no need for stronger tidal coupling or fine-tuned accretion histories.
If CMB-S4 cluster catalogs at z > 1.5 find alignment amplitude decreasing with redshift or ellipticity evolution inconsistent with e ≈ 0.33 + 0.05z at greater than 3σ, the M3 shared-cascade-J inheritance is refuted. The signature SCT prediction is alignment increasing with redshift consistent with primordial-imprint preservation.