Why Complex Systems Are Always One Step from Catastrophe

How Complex Systems Fail

Complex systems—from healthcare to power grids—are inherently hazardous and heavily defended, yet they run in a constant state of degradation. Catastrophe is never the result of a single failure but of multiple small faults aligning. This essay explains why post-accident 'root cause' analysis is fundamentally flawed, how hindsight biases our judgment of operators, and why safety is an emergent property that people create moment by moment. It argues that failure-free operation actually requires intimate experience with failure.