Let’s say whatever the machines do better than humans, gets done by machines. Suddenly the bottleneck is going to shift to those things where humans are better. We’ll do that and the machines will try to replace that labor too. And then again, and again.
Throughout this process society becomes wealthier, TVs get cheaper, we colonize Mars, etc. The force that keeps this going is human insatisfaction: once we get these things we’ll want whatever it is we don’t have.
Maybe that’s the problem we should focus on solving…