I agree, but I think you’re misunderstanding my comment. I was replying to a snarky comment that seemed to imply that the effect of taking amphetamines is obvious and mundane.

The point I was trying to make is that the effect on someone with ADHD can be profound and transformative, not like going from 80 to 100 but rather from 0 to 100. You suddenly feel like a functional person (I say this as someone with ADHD).