Tesla stock rose on Monday after CEO Elon Musk caught up with one of his “true and tested friends” on Friday. Before the bump, on Friday, CEO Elon Musk spoke with Rob Baron, his “true and tested friend,” as well as a longtime Tesla and SpaceX shareholder, at the annual Baron Capital Investment Conference. “Ultimately [there will] be billions of humanoid robots,” said Musk early in the hourlong interview.