I'm not an economist so I have to take most of what I read about such things on trust. The learned article I read about Universal Living Wage maintained that paying all citizens a sum guaranteed to keep them fed and housed works out cheaper than administering a Welfare State. Of course, it does not stop individuals topping that up by working if they want to or can. The trouble is that technology is making many jobs redundant and we are faced with millions of what Harari calls "useless humans". Amazon can replace 100 warehouse workers with 1 drone and operator. So Amazon is still making the same money with vastly reduced human costs.