Billionaire Elon Musk threw shade at billionaire Jeff Bezos in an interview with the Financial Times.
Musk said Bezos is "reasonably good engineering aptitude," but that he thinks Bezos "does not seem to be willing to spend mental energy getting into the details of engineering."
"[He] does take himself a bit too seriously," he added. "In some ways, I'm trying to goad him into spending more time at Blue Origin so they make more progress. As a friend of mine says, he should spend more time at Blue Origin and less time in the hot tub."
Musk says that he works for seven days and 80 to 90 hours each week overseeing projects at both Tesla and SpaceX.
Musk passed Bezos as the richest man in the world. Musk has an estimated net worth of $251B. Bezos has an estimated net worth of $195B.
Bezos has not responded to Elon Musk's shade. He's probably chilling in his hot tub...