Sebastian Marshall's structural diagnosis: an individual or society operating on **ethics alone** — pure external rules with no internal compass — has a predictable failure mode when the external rule system breaks. The mechanism in three steps: 1. External rules govern conduct, enforced by shame, ostracism, professional sanction, or institutional consequence. 2. Something destroys the rule system's authority: military defeat, regime change, professional collapse, expatriation, exile, deconversion. 3. Because nothing internal was governing conduct, the person has nothing to fall back on. They either become disoriented, or — more commonly — wholesale adopt whatever rule system is next presented, with the same faithfulness they showed the old. See [[Imperial Japan Ethics-Alone Collapse]] for the canonical case. Marshall's warning: > "It's dangerous to run ethics and shame alone — and perhaps even more dangerous to have a confused understanding of right and wrong. Imperial Japanese soldiers were often adrift and lost morally when their ethical system no longer held." The failure is not unique to Japan or to soldiers. A corporate executive whose entire ethical framework is "follow company policy" will commit any act the policy allows. A churchgoer whose entire morality is "follow what the pastor says" can be moved to atrocity by the wrong pastor. A lawyer whose only conduct-guide is the bar's professional code will defend anyone in any case with equal vigor. The protective layer is the inner compass: morals as a personal sense of right and wrong that exists independently of external rules and survives their collapse. Practical action: sit down and ask yourself why you do things. If the only answer is "the rules say so," you are running ethics-alone and exposed to this failure mode.