The fairness of the U.S. tax system has long been debated. Earlier this month, President Joe Biden tweeted, “It’s about time the super-wealthy start paying their fair share.” The message caught the attention of Tesla Inc. CEO and Twitter Inc. owner Elon Musk. “Please give him the password, so he can do his own tweets,” Musk replied, implying that the tweet wasn’t written by the commander in chief himself. But the billionaire business tycoon actually agrees with Biden’s view. “In all seriousness,