My anecdote: In undergraduate engineering, a lot of the people around me were on ritalin. I never felt disadvantaged because I felt it didn't give anyone a clea

My anecdote: In undergraduate engineering, a lot of the people around me were on ritalin. I never felt disadvantaged because I felt it didn't give anyone a clear advantage in the hardest subjects like mathematics or nonlinear control. From what I saw, it didn't seem to improve intelligence that much; rather it helped the distractable people to not get distracted from studying for example.