Abstract

Contemporary physics posits a universal speed limit while simultaneously accommodating rest, variable process rates, and relativistic time dilation. This paper argues that the relevant universal constant should be understood not as a physical speed, but as a universal norm of realization, an ontological invariant governing the transfer of distinguishability. Three independent arguments establish that realization requires an invariant norm: (1) variable norms introduce non-functional ontological structure incompatible with parsimony; (2) interobjective comparison and temporal ordering presuppose a common measure; (3) stable objecthood, understood as closed cycles of realization, demands reparameterization-invariant circulation. On this basis, motion is reinterpreted as redistribution of realization, rest as maximal internal realization, time as a derived count, and fields as stabilized derivative structures. The framework introduces no new physical postulates but clarifies the ontological conditions under which relativistic theories are possible. The main contribution is to show that the universality of the invariant norm is not a contingent physical fact but a structural necessity for any coherent ontology of objects, processes, and time.