There's a second level of knowledge that we could call something like you really know it when you take it seriously. And in my experience, it took me a very, very long time to have that inside effect my own behavior. I've noticed how often I've forgotten that potentialoften I wasn't ruined but I wasn't even worriedI should have been worried. It's a deep question and it's not unrelated to what you're talking about. Like what does it mean to know that? The Fool by Randomness was written by Nussim Nicholas Tullib who is known for his colorful writing.
Psychologist and writer Adam Mastroianni says our minds are like the keep of a castle protecting our deepest held values and beliefs from even the most skilled attacks. The only problem with this design for self-preservation is that it also can keep out wisdom that might be both useful and true. Mastroianni's summary of the problem is "you can't reach the brain through the ears." Listen as Mastroianni talks with EconTalk's Russ Roberts about the implication of this view of mind for teaching, learning, and our daily interactions with the people around us.