Does it always have to be for practical benefit? What about pure learning and intellectual enjoyment? Where are the true limits? In the end absolutely nothing w

Does it always have to be for practical benefit? What about pure learning and intellectual enjoyment? Where are the true limits? In the end absolutely nothing we do matters :) These dudes are living their best lives, and having done Quake-style asm texture mapping loops in the 90s (Mike Abrash, fastmap, Chris Hecker, PC Game Programming Encyclopedia, ...), I can definitely appreciate it <3