President Donald Trump, his Treasury secretary and his choice to lead the Federal Reserve believe they can coax the U.S. economy into partying like it’s 1999. They are putting their faith in artificial intelligence to duplicate what happened when another technology arrived in the 1990s: the internet. Back then, the American economy surged as businesses became more productive, unemployment tumbled and inflation remained in check. Trump is confident that his nominee to become Fed chair, Kevin Warsh, can unleash an even greater economic bonanza by jettisoning what the president sees as the central bank’s hidebound reluctance to slash interest rates. But many economists are skeptical.
