US exceptionalism is taking a breather. But it’s probably not quit the race yet, says financial journalist Ven Sreenivasan. SINGAPORE: What a difference a few months make. This time six months ago, United States Federal Reserve chairman Jerome Powell was the main character in every market story. Interpreting Fedspeak became a major pastime on Wall Street. Markets moved every time the Fed lowered rates or suggested that prices were still high. Today, interest rates are no longer the main factor