I know of this Twitter thread, but not sure of the authenticity.
> autopilot had _really_ high turnover at one point before release because some guy from space x came in and gave the entire dept a C pointer/memory test because Elon said they were "late" to ship.
https://twitter.com/atomicthumbs/status/1032939642243309569/...
Some of the described pearl-clutching issues are garden variety big enterprise data management stories.