Bridgewater founder Ray Dalio on Wednesday warned that a significant supply-demand problem regarding U.S. debt could have a profoundly disruptive impact on the global economy. It is the latest in a series of stark warnings about America’s mounting debt from the U.S. hedge fund billionaire, with the country’s national debt currently standing at more than $36.2 trillion. “The first thing is the debt issue, we have a very severe supply-demand problem,” Dalio told CNBC’s Sara Eisen at CONVERGE LIVE in Singapore. ”[The U.S. has] to sell a quantity of debt that the world is not going to want to buy.”...