"No such thing as human nature," meet your new roommate "Some human cognitive biases just aren't going away because they're still everyday survival tools regardless of whatever problems they create at higher levels of organization."
Take Satisficing, the tendency to seek out answers to questions that are satisfactory and then stopping. On paper it's an extremely harmful way for large numbers of people to think and the immediate rational response would be "Well people should not do that."
But this may only seem reasonable on paper, because satisficing is still the best general rule for getting the best average results for the lowest average effort. There is not much to do in terms of social engineering or education that would plausibly change people's tendency to use the most efficient cognitive strategy the majority of the time. There's no real "nudge" strategy for getting people to slow down and sit with the feeling of not understanding a topic, or to stop and consider a hunch as a real prior, because a large part of social engineering's premise is that nudges work by making positive behaviors more convenient. You cannot make slowing down on purpose more convenient. You can only do so much to make uncertainty convenient, although it would certainly be convenient for public policy if we assumed it was easy.
