It needs to be indexed to GDP, it should not be welfare it should be each citizen's cut of the machine driven GDP. That won't stop people from forming new kinds of human markets and selling their art, or doing things like benefitting from a scientific breakthrough, people who own the machines may benefit the most, but if you tie it to GDP and its a cut of the economy rather than a welfare check far fewer people will sit around and get loaded. They will be motivated to do the thing that everyone told them "don't quit your day job" for, the dreams of childhood coming into manifestation for the masses for thee first time in human history.
