There is an extremely long term trend, though, in which low-skilled labour which anyone can do is slowly replaced by high-skilled labour which requires intellig

There is an extremely long term trend, though, in which low-skilled labour which anyone can do is slowly replaced by high-skilled labour which requires intelligent people. A thousand years ago, perhaps even a hundred years ago, 90% of jobs could quite easily be performed by someone with a two-digit IQ, because they were manual labour. But as we replace manual workers with robot repairmen we run into the problem that some people who were smart enough to be manual labourers just aren't smart enough to be robot repairmen. Eventually we reach the point (which I think we're already pushing against) where the number of jobs which can be performed by people with (say) two-digit IQs is less than the number of people with two-digit IQs. What do we do then? Put them all on welfare and wait for our cities to burn down? Invent bullshit make-work jobs to keep them busy? Other more controversial solutions which I dare not mention?