"It's true that having a college diploma is still much better than not having a college diploma, but that doesn't mean that by sending more kids to school, we're actually making the workforce more productive, much less mitigating the problem of economic change; we may just be forcing people to jump over a higher bar to gain access to a shrinking number of jobs."
When Work Disappears
Education Schooling policy debate needs to grapple with
signaling theory and the evidence of waste. The loss of work trend described in the quote/link above may or may not indicate permanent changes.