Something to think about. No surprise, I’m sure, but I view the continued capacity to learn as the important factor here. Which generally depends on the capacity to not know and the capacity to be comfortable with not knowing.
I was lucky enough to go to schools that did not systematically crush and destroy that capacity. I guess that means I am still a kid. Fine by me.
One curious thing about being willing to not know. If you do succeed in getting conventional credentials that suggest that you have learned a lot, people assume that your claims of ignorance and not knowing are a strategy, not a simple claim of fact. They’re not.