Somewhat relatedly - there's another phenomena where people may be quite aware of the limits of their knowledge, but deliberately choose to hide it to achieve some objective (usually personal gain, but it could also be in service of some organization or mission), because they know that their audience is more likely to believe confident people. You pretty much have to do this to found a startup, because all startups are inherently risky and uncertain and yet few people will follow you if you seem uncertain.
