Mark Zuckerberg’s media spree touting the positive effects of artificial intelligence did little to cushion the blow of Meta’s second-quarter earnings, which sent its stock tumbling on Wednesday.In a Wall Street Journal op-ed published on Tuesday, the Meta chief executive expressed his optimism for a world where everyone has access to a super-intelligent machine.“As a thought experiment, imagine only one person had a super-intelligent lawyer,” Zuckerberg wrote. “He would have an unfair advantage in court. T ...