Elon Musk named a former Morgan Stanley executive the chief financial officer of xAI, the Financial Times reported, appointing an ally to help oversee one of the largest US artificial intelligence startups.Anthony Armstrong will helm finance at both xAI and social media service X, the newspaper reported, citing people familiar with the matter. The executive, who helped Musk complete the $44 billion acquisition of the former Twitter, will take up responsibility for nursing the social media platform back to f ...