You can extrapolate from the article and your comment into the future: in the future few things that we base our current economy on will still have value.

This means that we're going to have to radically re-think how compensation should work and how our future economy is supposed to work given that almost any job can be automated to some extent. The 'automated away' segment is expanding both upward and downward, that 'middle class' that is disappearing is not so much a middle-class as a middle tier, those jobs that were easiest to automate away because they dealt mostly with information management.

But once you go down that road your interfaces 'up' and 'down' just become 'more complex brains' and 'more capable hands' which in turn are touched by artificial intelligence and better robotics. So that middle tier will get ever wider.

This is an extremely challenging problem.