We occasionally have students ask for help on software, “My software
is perfect, but it doesn’t work!” Your software is never perfect. My
own software is never perfect. I recently found that I made
someone’s top ten list with regard to software that I had written 37
years ago. It’s not a top ten list anyone would aspire to be listed
on. Software that I wrote in 1979 is number two on this list of ten
historical software bugs with extreme consequences. I learned some
very important lessons from that experience.