The Persistence Locking Mechanism (PLM): A Philosophy of Scientific Continuation Under Partial Observability

This paper presents a philosophy-of-science framework for continuation reasoning under incomplete observability. Rather than treating partial visibility as equivalent to structural absence, the framework argues that scientific practice routinely relies upon admissible continuity inference when complete observational access is unavailable. The paper introduces the Persistence Locking Mechanism (PLM) as a non-ontological continuation framework concerned with structurally sufficient alignment rather than perfect reconstruction or total equivalence. The framework does not claim hidden entities, complete recovery of inaccessible structure, or deterministic certainty. Instead, it formalises how continuation may remain scientifically reasonable when observational access becomes degraded, fragmented, or boundary-limited. Within this interpretation, Persistence Fingerprint Analysis (PFA) functions as a comparative structural morphology framework, while PLM functions as an operational continuation-overlay mechanism. The present paper provides the epistemological justification for why partial continuity inference may remain admissible under incomplete observational conditions. The framework argues that many successful scientific practices already operate through structurally sufficient continuation rather than perfect reconstruction. Maps distort geography, probability distributions compress uncertainty, engineering tolerances flex under load, and observational science routinely infers continuity beyond direct measurement. The paper therefore reframes continuation not as certainty, but as admissible approximation under constrained visibility. The framework is explicitly non-replacement in scope. It introduces no new physical laws, entities, or mechanisms and does not compete with existing scientific theories. Its role is methodological and philosophical: clarifying how scientific continuation remains possible when observation becomes partial, degraded, or structurally incomplete.