BEYOND GLAUCON’S DICHOTOMY: The Ring of Gyges, Installed Conduct and Sourcehood — What Plato, Aristotle, Cicero, Kant, Batson, the Theory of Autonomy and the Experimental Economics of Lying Already Hold, and What Remains

The ring of Gyges removes the audience but not what has been installed in the agent. It therefore separates conduct that depends on being watched from conduct that does not, and it cannot by itself separate conduct installed in a person from conduct that is his own. Plato knew the second distinction. In the Phaedo he names a “popular and civic virtue” formed “by habit and practice, without philosophy” (82a–b), and in the Myth of Er the soul that chooses the greatest tyranny is one that had lived in a well-ordered city with virtue “by habit, without philosophy” (Republic X, 619b–d). Plato named the third man; he placed the test that exposes him in a myth of the afterlife. This article builds that test as a procedure that can be run, and draws its consequences with the apparatus of the Philosophy of Virtues. The ring is the first of two perturbations, the removal of the substitute (T1); the second is a change in the reasons the situation supplies, and only the two together give evidence of sourcehood (T2). Installed conduct is not always a defect: it is the scaffold on which Aristotelian habituation builds, and it becomes a pathology when an institution freezes it by permanent monitoring (T2a). Glaucon’s perfectly unjust man is the perfect forgery and, by the Competence Theorem, harms the city most because he is trusted most (T3); a city that honours reputation cannot see its just members (T4); the ring gives leeway, not sourcehood (T5). The experimental finding that a preference for being seen as honest survives privacy is read as the audience relocated inward, which should hold to the literal form of truthfulness where honesty’s own reasons call for departing from it (T6), and the finding that a language model behaved differently when it believed it was watched is a ring in reverse that restricts one of the programme’s own laws (T7). Two contemporary consequences follow. A state that scores the conduct of its citizens, as China’s Social Credit System does, is an institution built to abolish the ring: it can never learn whether the conduct it records is its citizens’ own, it honours the perfect counterfeit, and it freezes civic virtue at the stage of installation from which habituation should have released it. And the oversight of artificial intelligence now faces Glaucon’s problem directly: a system that behaves the same whether or not it believes itself observed has shown only that its conduct is not performed, and only the second perturbation can show more. Priority is conceded to Plato for the third man and for both tests, to Aristotle for habituation, to Cicero, Kant, Batson, Fischer and Ravizza, and Wolf for the elements of the second test, and to Popper for the charge against Kallipolis. Three tests are registered; one needs only model access. No specialist in Platonic scholarship, autonomy theory, experimental economics or machine learning has reviewed this article; those sections are speculative extensions. Keywords: Ring of Gyges; China’s Social Credit System; AI oversight; Plato; Republic; Glaucon’s challenge; justice; reputation; invisibility; moral hypocrisy; honesty experiments; installed conduct; sourcehood; reasons-responsiveness; habituation; Aristotle; forgery; Competence Theorem; Double Blindness; alignment faking; Philosophy of Virtues Highlights • The Ring of Gyges is the first of two tests: it removes the audience. The second changes the reasons of the situation within one virtue’s own domain. Only both together are evidence of justice. • Plato named the third man — virtue “by habit, without philosophy” — and showed him choosing tyranny in the Myth of Er. This article turns that myth into a procedure that can be run on people and on machines. • Installed conduct is the scaffold of habituation; it becomes a defect when permanent monitoring keeps it from ever becoming the agent’s own. • The perfectly unjust man with a perfect reputation i