[AndrewThrowaway]

But doesn't things like that happen with people? Take academy where some professor implicitly states "facts" or military or software development where some highly praised senior always has his last word...

[ben_w]

Sure, but it goes wrong with people, too.

https://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disas...

https://en.wikipedia.org/wiki/Bay_of_Pigs_Invasion