It used to be that you learned something and that knowledge was relevant for the rest of your life.
Not anymore.
The pace of change is so rapid that even the foremost experts at the edges of their field can’t keep up. We’re constantly in flux and constantly adapting.
The archetype of the wise sage on the mountain is now nothing more than a character in a story because knowledge is no longer stagnant. While we still turn to our elders for those life lessons that just can’t be learned by anything but experience, it’ll be our children who will teach us what we need to know.
In many ways, they’re already doing it.