Elon Musk says he's not 'the biggest fan' of Warren Buffett (TSLA)

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· *Elon Musk returned to Joe Rogan's podcast in an episode released Thursday.*
· *The pair didn't smoke marijuana this time, but they did discuss Tesla, Mars, and the ethics of ultra-wealth. *
· *Musk said there's a difference in those who make their money by building things, and those who allocate capital, like...