The real question about drugs isn’t whether or not they are addictive, but what they do to your mental processes, and how much of it it takes to do it.
My best friend is a nurse at a rehab facility and EVERY SINGLE(not one exception in years) person hurt by a non-addictive drug was due to unknown dosing or adulteration.
I cannot begin to tell you the number of mathematicians, scientists and researchers that saw direction while gaining a new perspective under drugs. I was in research for a long time and it is more common than not. Especially among the most brilliant.
I know most will not believe me and I'm wasting my time. The only reason I am doing this is because a close friend of mine was a brilliant researcher and killed by the drug war. The drugs never hurt him or made him hurt anyone but the law killed him.