Meaningful work will become boring. Pick your favorite dish and have it for 45 days straight and you’ll desperately want something else to eat. Ok, so the counter would be that we need variety of work. But, you can ask someone who travels a lot for work and see if they like this variety of places to see; they don’t. They get sick of variety.
All of these discussions IMO make no sense to me. For every claim, I can find a counter argument. It’s just intellectual masturbation. No progress or insight is to be gained.