When robots can produce most of the necessary life goods (food, energy, clothing and other manufacturing, medicine), one of the following will happen: (1) robots will be more expensive than humans, and nothing will change (unlikely), (2) there will be a monopoly on robot labour, resulting in an increase of inequality and eventually war (semi-likely), (3) there will be a competition on robot labour, resulting in a sharp fall of prices for basic goods (likely), (4) governments buying (some) robot labour and offering the goods to citizens for free (likely).