>> humans are mostly not needed anymore other than for menial low-paid work. Economy slows, then almost completely stops.

> Economy slows or stops when AI robots are producing goods and services for much lower cost than human workers?

You can't have an economy without employment.

Who is going to have the income to pay taxes to support that enormous welfare state that covers the needs of 99% of the population? The AI company owners? Why would they allow that? Presumably, if they own all the robots in the world, that includes the military drones.