Structural Intelligence Completion: Intrusion, Structural Debt, Anchoring, Somatic Capacity, Exit Architecture, Viscosity, and Frictional Design Under Cheap Coherence

Structural Intelligence (SI) distinguishes coherence from contact and defines intelligence as answer- able revision under constraint. The SI corpus has mapped the psyche under persona and shadow, AI risk under coherence-first interaction, and institutional decay under standardization and the grid. Yet several mechanisms remained under-formalized: how systems become occupied despite 1insight, where bypassed contact goes, how worth becomes invariant, how biology gates contact, how to survive inside grid incentives, and how AI interfaces can prevent coherence-theater from masquerading as truth. This paper integrates the completion layers into a single architecture. Intrusion is formalized as foreign agency load (Iintr) operationalized by occupancy λt of action selection. Presence is presented in canonical published form (Preal) and in reduced analytic forms used to isolate intrusion, debt, and friction effects without replacing the canonical equation. Structural Debt (Ds) is introduced as conserved unmet contact obligations created by substitution and actorhood; “evil” is defined structurally as non-consensual export of Ds. Relational Anchoring (Ra) is introduced as the devel- opmental physics by which W (fixed worth) becomes non-zero through co-regulatory containment. Somatic Capacity (Ccap) is added as the biological bandwidth that gates whether contact can be metabolized while pilot access remains online. Exit Architecture (Exit) is defined as structural decoupling capacity from grid reward-pressure channels. At the macro layer, Network Viscosity (V) and Epistemic Exchange Rate (Ex) explain why cheap coherence dominates at scale. Finally, a Frictional Design variable (F) is introduced for human–AI systems: intentionally imposed epis- temic cost that increases verification latency while reducing hidden avoidance latency, suppressing actorhood theater, and restoring pilot sovereignty. The paper closes with operational proxies, fal- sifiers, and falsifiable predictions that convert SI from descriptive philosophy into testable systems theory.