Bridgewater Associates founder Ray Dalio lives a pretty comfortable life, on account of the $16.9 billion valuation next to his name. But there’s something keeping him up at night, and it’s not the nagging sense that, at 69, he doesn’t have nearly enough time on earth left to spend that giant chunk. It‘s that there’s about to be an uprising in America, spurred by the widening wealth gap, and we all know who tends to fare the worst when the pitchforks come out.