AI Bubble? In the first half of this year, spending by companies on artificial intelligence rivaled consumers as the primary engine of the nation’s economic expansion.That startling shift is one of many recent examples of AI’s increasingly outsize role in propping up U.S. economic fortunes — and a sign, some fear, of a soon-to-pop speculative bubble that could cause widespread financial pain.Billionaires Missing the PointBillionaire businessman Mark Cuban tells Axios that AI is leveling the playing field for young, low-income entrepreneursAI HollywoodSome of Hollywood's biggest stars and the union that represents them are speaking out against the creation of an AI-generated actress following reports that she will soon by signed by a talent agency.See omnystudio.com/listener for privacy information.