The Terror was the period during which the Committee of Public Safety, dominated by Robespierre and Saint-Just, used the Revolutionary Tribunal and the guillotine to suppress political opposition. Between 16,000 and 40,000 people were executed, depending on how broadly one counts. The Girondins — Condorcet's political faction — were purged in June 1793 and systematically eliminated across the following months. Condorcet was condemned in absentia, hid for eight months, and died in a cell shortly after his arrest. The Terror is the catastrophic event against which the Sketch for a Historical Picture was composed, and the specific historical evidence that tested the thesis of indefinite perfectibility to its limits.
Condorcet's response to the Terror was not denial. He had watched it happen, he had seen his friends guillotined, and he was hiding from it as he wrote. His response was analytical: the Terror was a catastrophe of a specific kind — the institutional collapse that occurs when expanded political capability outruns the institutions designed to channel it. The principles of rational governance he had helped articulate had outrun the institutional capacity to implement them. The result was not a refutation of the principles but evidence of what happens when institutions fail.
The structural parallel to the tenth epoch is explicit throughout this volume. The language interface has produced an expansion of capability comparable in some dimensions to the political expansion of the Revolution. Whether the expansion produces Condorcet's projected flourishing or a new form of catastrophe depends on whether the institutions are built in time. The Terror is the warning; the Sketch is the constructive response; the tenth epoch is the test.
The detail Segal fixates on in his epilogue — the twelve-egg omelette that betrayed Condorcet's aristocratic origins and led to his arrest — is an instance of the gap between system and individual that no amount of theory captures. Condorcet had designed the most ambitious intellectual system of the Enlightenment. It did not save him from the tavern-keeper's inference. The world operates at the level of the omelette, not the level of the system, and the failures of institution-building are measured in specific people's specific deaths.
Whether the analogy to the Terror is apt for the AI transition depends on whether current institutional failures produce comparable scales of harm. The comparison is not casual. The Sketch's durability as a framework depends on whether its diagnosis of institutional collapse — not merely as possibility but as structural consequence of capability outrunning institutions — is recognized as a genuinely universal pattern rather than a one-time catastrophe of the French Revolution.
The Terror is conventionally dated from September 5, 1793 (when the Convention declared 'terror the order of the day') to July 27, 1794 (the fall of Robespierre), though the political dynamics producing it began earlier and some of its measures persisted longer.
The Law of Suspects (September 1793) and the Law of 22 Prairial (June 1794) progressively expanded the Tribunal's reach and lowered evidentiary standards. The purge of the Girondins (June 2, 1793) preceded the formal Terror but set its political conditions.
16,000–40,000 executed. Depending on definition; Condorcet's faction was systematically eliminated.
Enlightenment devouring its theorists. The rational republic's defenders became its victims.
Institutional collapse, not principled failure. The principles of governance had outrun the institutions to implement them.
Structural template for capability-outrunning-institutions. Whether the AI transition produces an analog depends on current institutional construction.