The fascinating thing is that we are already there
Starting in the 1960s, productivity has been high enough so people could work less for the same comfort. That's why German unions have been able to lower the work time per week to 38 or even 35 hours in union shops. (=Mostly car industry)
We are already seeing more and more "bullshit jobs" which consist of fullfilling artificial buerocracy. We are seing more and more calls from the economy to lower education standards to lower productivity. The best known one is the Bologna-Process.
The only reason we don't have universal basic income probably are neoconservative think-tanks like the Mont Perelin Society.