A group will never admit they were wrong. A group will never admit, “We made a mistake,” because a group that tries to change its mind falls apart. I’m hard pressed to find examples in history of large groups that said, “We thought A, but the answer’s actually B.” Now that is a useful insight. It's a big problem for voluntary associations. Companies can sometimes change their culture, but it usually requires replacin…
Probably that can be a useful insight in some specific circumstances as you describe, but it falls flat as a generalization. Allow me a snark: maybe a group of venture capitalists (many of whom call themselves "angels") might not admit a mistake. But many groups (not as grandiose as the military, though) jolly well admit and own up non-trivial mistakes. I participate in several open source projects over 13 years now.…
And do it right here on HN. Just the other day a member of the Python core team said the Python2 to Python3 transition was be a never to be repeated mistake.
> Granted, these are small groups ranging from six to twenty-ish.
And big groups do it too, apparently. In community groups I'm in saying things like "we tried this but it didn't work" is a regular occurrence. They make for entertaining, self depreciating war stories, letting newbies know things aren't judged too harshly around here.
In fact it happens so often, I wondering if all the posts here saying "of yes - that's right" is some sort of group confirmation bias at work. I wonder if it will be self correcting - and the group later come to the conclusion it was wrong.