of course it’s harder to learn new things as we get older but it’s not from any lack of ability or stamina
At an older age humans have a vast bank of knowledge and complex world views that explain and unify all the knowledge.
Each new piece of knowledge had to be tested for correctness and whether it fits in the world view. The world view is also tested to see if it is still the best explanation for all the knowledge acquired. The more knowledge and more complex the world view the more testing.
of course it’s harder to learn new things as we get older but it’s not from any lack of ability or stamina
At an older age humans have a vast bank of knowledge and complex world views that explain and unify all the knowledge.
Each new piece of knowledge had to be tested for correctness and whether it fits in the world view. The world view is also tested to see if it is still the best explanation for all the knowledge acquired. The more knowledge and more complex the world view the more testing.
It can be tiring.