Phenomenal read..... "In other words, what will differentiate people is not how smart they are but their relationship to mental effort. Right now, some people have what psychologists call a high need for cognition. They enjoy thinking hard. These are the people who enjoy playing difficult games and reading dense books. On the other end of the spectrum, there are the cognitive misers, the people who find it unpleasant to think hard and take any opportunity not to do it. In the middle are the people who have a medium need for cognition. They will put in the effort when they really care about something, but they don't intrinsically enjoy it. Need for cognition correlates with intelligence but is not the same thing. We all know a lot of really smart people who don't like to work hard."

It seems a common experience in the lives of people with high agency is that they, at some point, metaphorically, lean against a wall and discover that there is a hidden door. That some constraint they’ve been told about turns out not to hold, and this allows them to experience something positive. And from this they get into the habit of testing if walls are actually doors, and the more they do so, the more examples of hidden doors they find, and the more inclined they are to look for them. Far from the only thing that sets them apart, but having that experience can be transformative — Henrik Olof Karlsson