Jury selection begins Monday in a $134 billion showdown between two of the world's most powerful tech titans — Elon Musk , the richest man on earth, and rival AI developer Sam Altman , CEO of OpenAI, the company behind ChatGPT. "Musk v Altman," to be tried before a federal jury in Oakland, California, culminates a decade of bitter clashes between the two former tech besties, both in lawsuits and public sniping. (Musk, 54, has called Altman a liar and a swindler; "I feel for him," Altman, 41,