You need income to:
- buy house
- get food
- buy clothes
- medical care
- buy nice things
if robots are that advanced that can do most of the jobs - the cost of goods will be close to zero.
government will product and distribute most of the things above and you mostly won't need any money, but if you want extra to travel etc there will always be a bunch of work to do - and not 8 hours per day
> if robots are that advanced that can do most of the jobs - the cost of goods will be close to zero.
No, the cost of goods will be the cost of the robots involved in production amortized over their production lifetime. Which, if robots are more productive than humans, will not be “near zero” from the point of view of any human without ownership of at least the number of robots needed to produce the goods that they wish to consume (whether that’s private ownership or their share of socially-owned robots). If there is essentially no demand for human labor, it will, instead, be near infinite from their perspective .
> The cost of robots will be zero because robots will mine ore, process it and make other robots.
This assumes, among other things that are unlikely to be true, that the only cost of extraction is (robot) labor, and that mining rights are free, rather than being driven by non-zero demand and finite supply.
(Another critical implicit assumption is that energy is free rather than being driven by non-zero demand and finite supply, as failing that will result in a non-zero price for robot labor even if the materials in the robot were free.)
if robots are that advanced that can do most of the jobs - the cost of goods will be close to zero.
government will product and distribute most of the things above and you mostly won't need any money, but if you want extra to travel etc there will always be a bunch of work to do - and not 8 hours per day