Hedge fund tycoon Ken Griffin has a blunt message for anyone expecting artificial intelligence to instantly rewrite the global economy: the hype is real — and it's there to justify enormous spending. Speaking at the World Economic Forum in Davos on Wednesday, the Citadel CEO said the AI boom is being fueled as much by narrative as by real productivity gains. Griffin, who ranks as the 39th wealthiest person in the world with a net worth of about $48.3 billion, according to the Bloomberg