The economist offering this “solution” has been feted by the Obama White House economic staff, the International Monetary Fund, and by many of the people running world economies today. His ideas are definitely “in play.” Thomas Piketty, the forty-two year old French economist whose book, Capital in the Twenty-first Century, became an overnight sensation and unexpected bestseller, is being hailed as the new Keynes, an economic thinker who can lead us out of our current economic malaise, just as Keynes is alleged by his followers to have lead us out of the Great Depression. Keynes’s keynote book, The General Theory,...