The Giant Arc as a Linear Coherence Ridge in the MID/QC Substrate

The Giant Arc is a 3.3‑billion‑light‑year‑long arrangement of galaxies whose scale, continuity, and morphology challenge standard cosmological expectations. Under ΛCDM, structures of this magnitude should not form, and their coherence violates statistical homogeneity. This paper reframes the Giant Arc as a linear coherence ridge emerging from the macroscopic internal disparity and quantum coherence (MID/QC) substrate. In this framework, large‑scale cosmic structures arise from tension gradients and coherence minima in the underlying substrate, not from stochastic clustering. The Arc’s redshift uniformity, morphological alignment, and large‑scale continuity follow naturally from ridge formation in the MID field. The paper provides a set of observational tests that can be performed using existing JWST and spectroscopic survey data to evaluate the coherence‑ridge interpretation.