Maybe you just want to be more efficient about increasing the fun experiences beyond yourself. But don't discount fun for fun's sake either!
While we are in a good spot right now. I'm convinced that we need a lot more progress to really make the synthesized simulations / games that I see in my imagination.
Hardware, algorithms, and architecture all have huge room for improvement.
This is very understandable, especially in a professional setting. But - assuming one has not reached a state of total zen - one cannot live a life in complete selflessness. I am guessing there are things that you do for the sheer enjoyment: watch movies, read books, go for walks? Can the reading and practising of pure mathematics not fall under such a use of time?