Historically, the economic promise has been that everyone who CAN get a job will just get a Different job when new technologies make their current jobs obsolete. Plow-pushers will become welders, for example.

And the usual futurist's question is whether instead the low-skill workers are more like horses in the 1930's, soon to be completely useless. The interesting argument in the article is that, well, even if the low-skill workers aren't completely unemployed, they'll be pushed forever into low-productivity industries that are happy enough paying them serf's wages... Perhaps keeping them just busy enough to avoid open revolt. (perhaps.)

That's not at all what I said. What I said is that education opens the opportunity for those who have the innate ability.