SASA Master Class: Republic to Ruin: Diagnostics of Civilizational Collapse

Why do civilizations fall apart? The obvious answers — bad leaders, economic dysfunction, military overreach — describe symptoms rather than causes. Three ancient writers looked deeper and discerned that collapse begins not in failing systems, but in the deterioration of human consciousness.

This Master Class reads Plato, Thucydides, and Polybius not as historical artifacts, but as diagnostic thinkers writing under conditions of civilizational stress. Each offers a distinct framework: Plato locates the source of political disintegration in the disordering of human desire; Thucydides in the corruption of language and the erosion of shared meaning; Polybius in the structural logic of institutional decay, cyclical and largely predictable.

The question posed to all three texts: is civilizational collapse best understood as a failure of institutions, or as the breakdown of human consciousness that institutions merely reflect?

These thinkers were not theorizing from a distance. They observed, with rigor, the decline of Athens,…