La Profilée as a Universal Constraint - The Persistence Condition on All Determinate Systems Under Transformation

La Profilée defines the persistence condition IR = R / (F · M · K) ≤ 1. This paper argues that this condition is not a domain-specific model but a universal constraint on determinate systems under real transformation. Any system that remains identifiable while undergoing transformation must preserve distinguishability, allow real variation, and maintain identity continuity. These requirements force restricted transformation, finite integration capacity, non-substitutable structural roles, and a bounded persistence ratio. La Profilée therefore does not compete with domain theories. It constrains them. Any theory that describes persistent entities must enforce a constraint equivalent in necessity to the persistence condition — not merely in function but in structural compulsion — or lose determinate identity as an admissible object of description. LP does not prescribe representations; it constrains admissible ones.