[yitchelle]

I hear what you are saying and agree with the danger fatigue observation, but it is different to the managers at NASA and Boeing that are reviewing the slides.

By default of your situation, you are facing these life and death decisions on a constant basis. The NASA and Boeing managers do not. I can't imagine they are part life and death scenarios very often, if at all.

Critical thinking failed them that day.

[jplayer01]

I don't think he's that far off the mark. Take the seals. This wasn't a one-off decision. This was a problem that was known for years and repeatedly ignored at lower and lower temperatures (thus lowering the allowed limits far below the original specifications) until the disaster. The reasoning being "well, you warned us last time, but everything went fine, so let's just keep going, it'll keep being fine".