"I feel like there's zero empathy because a lot of people are in the other camp that say, oh, this is just because you found a legal way to get a meth," he says. "It's 100% true that the drug is really overprescribed and that people who don't need it need it're certainly getting it." He adds: "The honest conversation is that a lack of Adderall will absolutely screw maybe tens of millions of people"