NEW YORK (AP) — If you'd like to live in Downton Abbey, the good news is that our economy has entered a second Gilded Age of opulence and elegance. The bad news is that you'll likely end up among the vast majority stuck sweating in the kitchen. In a new book, Thomas Piketty, the French economist who helped popularize the notion of a privileged 1 percent, sounds a grim warning: The U.S.