~/talk

The Most Bizarre Software Bugs in History

Talkat PyCon US 2025 · 2025-05-16..05-18· [engineering-leadership]
slides:none on file

A sequence of concrete failures decides whether to watch: a flight-control single AoA sensor forces nose-down commands and contributes to crashes after certification work is self-reviewed; a Mars orbiter misinterprets imperial units as metric by a factor of 4.45 and burns up; Google marks every site dangerous from one stray “/”; an automated pricing loop lists a book at $23.7 million; JP Morgan hides risk and loses $6 billion because spreadsheets average wrong; a script with an extra space runs rm -rf / and nukes a system.

AI-written summary · about

  1. 0:00Welcome to bizarre bugs
  2. 1:02Lion Air Flight 610 crash
  3. 3:10Boeing 737 Max MCAS
  4. 7:31MCAS sensor failure cause
  5. 8:56FAA certification flaws
  6. 10:20Swiss cheese model failures
  7. 11:23Combinatorics and hidden bugs
  8. 12:29Google’s site blacklist typo
  9. 13:53NASA Mars Climate Orbiter
  10. 17:10NASA integration test failure
  11. 18:12Database bug Steve Null
  12. 19:40Edge cases in user inputs
  13. 20:48Amazon pricing disaster
  14. 22:14Excel gene autocorrect errors
  15. 23:42JP Morgan $6B spreadsheet error
  16. 25:30Bumblebee rm -rf bug
  17. 27:16Q&A
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