I think it's fair to call it a reverse brain drain in that post-World-War-II the US has benefited from a steady stream of above-the-curve immigration. It's not

I think it's fair to call it a reverse brain drain in that post-World-War-II the US has benefited from a steady stream of above-the-curve immigration. It's not a temporary thing that's switching gears -- it's been a constant ebb for the last 60 years that helped establish the US as the dominant world economy. When you remove that from the equation, there is something core to American society that goes with it. The only real problem, however, with this essay, is that it doesn't compare to some historical baseline other than an anecdote. It's not possible just from reading this to tell how big of a change this really is.