Module A · 1 published

Post-Mortem Lab

Break it yourself.

One real failure per episode: Ariane 5, Therac-25, Knight Capital. I rebuild the exact mechanism as code, you trigger the bug in your browser, then we fix it and prove the fix with a test.

Source code on GitHub →

01

Season 1

RefSubjectThe one-line versionStatus
EP-00LaunchWhy rebuild disasters at allPublished
EP-01Ariane 51996A 64-bit number squeezed into 16 bitsIn progress
EP-02Mars Climate Orbiter1999Pounds on one side, newtons on the otherPlanned
EP-03Patriot missile, Dhahran1991A clock that drifted a third of a secondPlanned
EP-04Therac-251985–87A race condition in a radiation machinePlanned
EP-05Knight Capital2012A reused feature flag, $440M in 45 minutesPlanned
EP-06Cloudflare outage2019One regex took down a global networkPlanned
EP-07CrowdStrike2024A config file that crashed 8.5M machinesPlanned
02

Log

  1. EP-00I’m rebuilding history’s worst software bugs so you can break them yourselfIntroducing Post-Mortem Lab. One famous engineering failure per episode, rebuilt as a small simulation you can run, break and fix.