Agency Under Constraint - A Structural Derivation of Intervention from the Persistence Condition

Persistence under real transformation requires that IR = R / (F·M·K) ≤ 1. This condition is not assumed. It is derived from minimal structural requirements. Agency follows from it as a necessary consequence. If a system faces transformation load that exceeds its integration capacity and is to persist, intervention in R, F, M, or K is structurally required. There is no other structural pathway. Agency is therefore not a psychological property or an independent principle. It is the only form that persistence-preserving intervention can take under the persistence condition. This does not imply that all systems possess agency. It establishes that persistence under non-static transformation requires either external stabilization or internal intervention capacity. Agency is not freedom from constraint. It is the structurally necessary form of action under constraint.