Gravity as a Response to Constraint: Regime-Licensed Closure

Gravity is traditionally treated as a primitive ingredient of physical law—either as a universal force or as a fundamental geometric structure. In this work, we adopt a different, strictly operational standpoint. Gravity is not postulated as a microscopic cause, a new field, or a fundamental interaction. It is treated as a macroscopic response description that becomes available only when a closure is stable, transportable, and protocol-independent across a given regime. Within this framework, a geometric (metric) description is not assumed a priori. It emerges as the most economical bookkeeping device once a single closure can be transported across heterogeneous inference protocols without residual inconsistencies. In such licensed regimes, standard General Relativity phenomenology is recovered without modification. Outside these regimes, forcing a universal metric closure may become methodologically unsafe, without implying new forces or violations of established local physics. This note does not propose a new theory of gravity. It provides a regime-based clarification of what it means for gravity to be applicable, falsifiable, and operationally justified.