universal welfare will not work
it will drive up costs and that means very high inflation
What are you talking about?
The government will nationalize the robot run factories and services, which will all but run themselves, from mining and transporting raw material to factory assembly and/or 3d printing, followed by land, sea, or air drone transport delivery. Services, too, will be supplied by artificial intelligence.
With government owning the production of all goods and services, government gives each of us ration coupons to use in exchange for what we need.
What money? What inflation?