Dark Matter as Admissibility Topology in Unified Recursion Theory

This paper applies the admissibility framework of Unified Recursion Theory (URT) to the dark matter problem. It proposes that dark matter, as currently defined by observation, may be consistently interpreted as ordinary physical processes occurring in informationally inadmissible regimes rather than as exotic particle species. Within URT, accessibility to measurement is constrained by energetic cost, informational entropy change, environmental bandwidth, and informational stiffness. Processes may therefore be physically realized while remaining systematically inaccessible to specific measurement channels. This paper applies that structure to explain the empirical asymmetry between universal gravitational coupling and persistent electromagnetic, thermal, and chemical null results associated with dark matter. The paper introduces no new operators, equations, or dynamical laws. Spatial variation of informational stiffness is treated interpretively, consistent with existing URT treatments of strong-constraint regimes, and is not introduced as a dynamical field. Black hole freeze zones and solar-system–scale anomalies are used solely as interpretive exemplars of admissibility separation. Falsification criteria are explicitly restricted to the empirically defined dark matter sector and do not constrain the existence of other admissibility regimes with different coupling patterns, which URT permits. The work reframes dark matter as a problem of admissibility topology rather than missing composition, while remaining fully consistent with standard gravitational dynamics.