There will be few people needed at the apex of the arts, once the best of the best can do the jobs of most everyone else combined. We still need an economic plan for everyone else.
https://blogs.discovermagazine.com/crux/2012/04/24/steak-of-...
But an economic plan that revisits the idea of what an apex is, I think would accomplish that 'for everyone else'.
That's why the idea of micro farming is so interesting: in an agrarian system where people grow their own food, as a pastime and 'art', then you can afford many, many apexes - at least one per farm/garden.