Structural Failure Modes in Civilizational Systems: Five Canonical Pathways and Integrated Detection Framework

This paper presents a formal technical framework integrating three components: (1) the Acceleration-Capacity Gap Model (ACGM), which defines system stress as the fundamental constraint on civilizational stability; (2) five canonical failure modes — Acceleration-Capacity Gap, Institutional Lock-in, Value Collapse, Cognitive Distortion, and Complexity Overload — each with formal mathematical definitions, detection conditions, and SOE simulation law mappings; and (3) a Civilizational Stability Index (CSI) using a conservative max-norm formula to assess system proximity to failure thresholds. Each failure mode represents a structurally distinct pathway through which systems exit stability regimes. The five modes are not independent — they interact and amplify each other — yet each has a primary mechanism that can be formally defined and detected using observable institutional proxies. The framework is validated against three historical cases: the Late Roman Empire (FM II + FM V: institutional lock-in combined with complexity overload), the Soviet Union (FM III + FM II: value collapse combined with lock-in), and the 2008 Global Financial Crisis (FM I + FM IV: acceleration-capacity gap combined with cognitive distortion). The paper argues that each failure mode is structurally inescapable without explicit corrective mechanisms. The System of Eternity (SOE) is presented as the first comprehensive governance architecture designed to address all five failure modes simultaneously, making it a case study in governance-as-problem-solving rather than governance-as-constraint. Added Section 4.3 — Emergent Corruption as Compound Failure Signal. Frames systemic corruption as a compound output of FM II and FM III co-activation, connects the enforcement cycle to FM IV cognitive distortion failure, and derives a structural self-audit requirement for non-terminal governance systems.