And even if you are hot shit, you can get a much better feel for where your talents and skills begin and end and what you’d need to do to improve them to have a reasonable prospect to accomplish or know such and such. Which relatedly is why super low risk educational choices are bad.
I am far from the first person to observe this, but Yuds stuff is classic auto-didact shit. Part of why we send smart kids off to college is so that they can meet a bunch of people smarter than they are and come to the painful realization that they aren't hot shit. Certainly worked for me.