Mass Ordering as a Hypothetical Active-Frame Schedule for Gravitational Backgrounds

We examine mass-ordered active-frame iteration as a hypothesis rather than an established gravitational theory. Given source blocks with fixed scalar mass labels, descending mass defines a formal update schedule, but does not establish why that order is physically preferred, determine how source positions and matter states evolve as the background changes, or provide the single-layer map needed to construct a spacetime solution. We distinguish formal mass rank, local gravitational influence, and causal precedence. A center-rooted construction whose successive layers are selected by causal relations is a rooted causal-order method, not an independent mass-order principle; a radius-only schedule requires separate physical justification. We formulate a model-dependent dominance-reversal conjecture and identify the additional diagnostic and gauge data needed to test it. Conditional recursion and common-field results delimit when reordering is merely a computational schedule and what additional history-dependent laws would be required for physical order effects. They do not establish the existence, uniqueness, conservation, or convergence of a mass-ordered Einstein–matter solver. Braid encodings of field histories remain speculative. No Galactic calculation or empirical validation is claimed. Mass ordering; active frames; Einstein–matter systems; gravitational backreaction; order dependence; causal structure.