The lensing sky out-draws the simulations: giant arcs are more abundant than ΛCDM produces, arc positions conflict with weak-lensing and X-ray mass models of the same clusters, and the morphologies demand clumpier, more extended mass than smooth NFW halos provide (Bartelmann 1998; Meneghetti 2013). Every repair trades one problem for another.
The model's lenses are smooth NFW halos with simulated substructure, so arc efficiency is capped by the concentration-mass relation and arc texture by the subhalo population. A sky that lenses more efficiently and more texturedly than both caps allow indicts the mass model itself, not its tuning.
SCT redraws the lens. The cluster's gravitating mass is its baryons coherently amplified (P50, P52), and the amplification is not smooth: compact comoving subgroups within the cluster amplify their own lensing locally, the registered substructure enhancement of Paper 6, From Chaos to Cosmic Collisions, Section 6, where the strong-lensing cross-section scales as the square of the substructure amplification, reaching the factor 10 to 16 enhancement that resolves the Meneghetti galaxy-galaxy lensing excess. The same physics raises the giant-arc count, arc production is exquisitely sensitive to the central mass profile and its texture, and supplies the radial arcs, odd tangential radii, and anomalous flux ratios as signatures of coherence texture no smooth particle halo carries.
The cross-model conflicts dissolve into the two-mass structure of the framework: arc positions read the full coherently amplified potential while X-ray masses read the gas's local response (recid 214), so mass models built from different probes disagree exactly where coherence contributes most. The registered discriminant is the substructure scaling: arc and GGSL enhancements should track the kinematic compactness of the lensing subgroups, A scaling with sigma_v and radius per the coherence function, rather than the subhalo mass function, a statistic JWST-resolved arc systems across Euclid's cluster sample can measure. The amplification fixed point is in Paper 13, From Chaos to Coherent Gravity.
Keystone economy: P52 amplifies the lens, and its texture, where the particle model must stay smooth.
The registered kill is the simulation counterfactual: if raising CDM concentrations within the measured concentration-mass relation fully reproduces the arc statistics and GGSL excess at all radii and masses, the coherence texture is unnecessary. SCT separately requires the enhancement to track kinematic coherence; arc-rich clusters whose lensing texture correlates with the subhalo mass function rather than subgroup compactness would refute the M6 reading across the strong-lensing sector.