re: the actual bug - it took a long time for people to reproduce it and figure out what it was. This article gives an overview of the bug: https://www.bugsnag

re: the actual bug - it took a long time for people to reproduce it and figure out what it was. This article gives an overview of the bug: https://www.bugsnag.com/blog/bug-day-race-condition-therac-25 https://www.bugsnag.com/blog/bug-day-race-condition-therac-2... A much longer paper about the system here (linked from the OP twitter thread) https://web.stanford.edu/class/cs240/old/sp2014/readings/therac-25.pdf https://web.stanford.edu/class/cs240/old/sp2014/readings/the...