~/talk

Learning From Failure: How We Learned a Better Way

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Claims that Five Whys and single-cause RCAs stop learning and that treating "human error" as the end of an investigation hides system faults. Adopting the Etsy debriefing method (a 30-page guide on GitHub) introduces a facilitator, rejects counterfactuals, and focuses on shared learning. After a six-hour outage an original 30-minute RCA expands to 1.5 hours, action items change, and two weeks later a repeat failure lasts three hours and is less severe, showing measurable improvement.

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