Huey Lewis & the News:
"I want a new drug
One that won't make me sick
One that won't make me crash my car
Or make me feel three feet thick
I want a new drug
One that won't hurt my head
One that won't make my mouth too dry
Or make my eyes too red"
I'm inclined to go with Feynman on this. He was once convinced in the 1960s by Dr. John Lilly to try LSD, being told it would improve his thinking. Feynman then thought, the next day, that he had solved a hard problem he'd been working on. While going to a meeting where he was doing to discuss his solution, he realized that he hadn't solved the problem, he had hallucinated that he had solved the problem. Feynman was furious. He wrote "I like to think, and I don't want to break the machine."That guy would probably get equally good results by taking 10 days off to go surfing.