Elon Musk’s feud with Sam Altman arguably began when the two cofounders were at OpenAI, but it has recently escalated into personal attacks and name-calling in public. On Monday, Altman said, “I feel for the guy,

A billionaire tech battle is heating up as the chief executive of OpenAI, Sam Altman, brushes off Elon Musk’s unsolicited bid to buy his artificial intelligence company and suggests that Mr. Musk lives his whole life “from a position of insecurity” and is probably not “a happy person.”