B(t) regulates system exposure and maintains internal conditions. Failure examples: increased gut permeability, compromised cell membrane integrity, heightened inflammatory signaling. The relationship is multiplicative, not additive. Every other stressor is amplified by boundary degradation.

Load amplification layer. Boundary failure does not add to load — it multiplies it.

The Boundary System

Activation condition: Σ ↓ and intake removed. Sequence: Utilization → Clearing → Repair. Continuous intake suppresses autophagy via mTORC1 activation and sustained insulin. Strategic metabolic transition removes both suppressors simultaneously. K_auto rises to corrective baseline.

Biological repair activation. Strategic transition enables K_auto at baseline.

The Autophagy Correction Loop

Completion requires both conditions simultaneously: Φ(x) converging toward K_auto, and Σ decreasing. Non-completion occurs when either condition fails. A reduction in Σ that does not produce cycle completion is not completion. Cycle convergence under persistent Σ is not stable.

Resolution threshold. Repair is permitted only when cycles resolve.