Magnetization current and spatial variation of spin require the same matter action and a consistent history prescription. The source also notes that count configurations invisible to a particular readout can still carry kinetic response and energy. Omitting them requires a justified constraint or variational reduction.

Calibrated reference rotations can establish conditional local kinetic curvature in the realized description. They do not automatically supply primitive integer evolution, physical current, boundary transfer, clock normalization, or full metric stress. source review retains those tasks as separate unresolved requirements.

The result is a discriminating internal test of a proposed route to spin dynamics. It does not announce a new spin experiment or an unrestricted proof of equivalence with relativistic quantum matter. The October 23 date marks the recorded source version; the record does not establish the first day these particular obstructions were discovered.