Needs caffeine, amphetamine & and methylphenidate to get shit done but is not addicted? I guess Mr. Erdős may have had ADHD

ADHD moment

After his mother’s death in 1971 he started taking antidepressants and amphetamines, despite the concern of his friends, one of whom (Ron Graham) bet him $500 that he could not stop taking them for a month. Erdős won the bet, but complained that it impacted his performance: “You’ve showed me I’m not an addict. But I didn’t get any work done. I’d get up in the morning and stare at a blank piece of paper. I’d have no ideas, just like an ordinary person. You’ve set mathematics back a month.”

P(doing math/doing meth) = P(doing meth/doing math)*P(doing math)/P(doing meth)