A rather weighty article which I don't pretend to fully understand. But, perhaps I know my limits of knowing; unlike the elites running the Fed who don't know that they don't know.
Meanwhile Europeans have the same problem 'cause while the US is just 1/20th of the world's people, it's also a third the world's economy and half the world's wealth. Bottom line, the fate of the world's econ strategy is in American hands...