I would say “yes” and more.
I’ll try to make this my last post as I don’t want to spam your log. I’m not a “new age” thinker type or anything along those lines but I strongly believe that knowing what you are capable of and what you are not capable of creates the space for greater achievements. There are statistics “Everest 1922 - 2006 Age, Success and Fatalities.”
Fatalities by Age
0-29 1.86%
30-39 1.66%
40-49 1.47%
50-74 1.59%
So my thesis is the older climbers have “achieved” more meaningful failures and better understand what they are capable of and what they are not. This translates to a higher survival rate allowing them to climb more peaks over a longer career. Where the younger climbers have not learned to use failure to fine tune their progression yet.
Sorry on the Plutarch quote I'm just not familiar with it.