The use of Adderall and other nootropic substances are especially common from where I'm originally from (around the Silicon Valley). It certainly helps people get an edge on the competition but I've had friends who have crashed hard and suffered health problems from such drug use. I agree that there is nothing wrong with modulating our systems via substance use, after all that's what we are all doing here one way or another (even if it's just diet alone it falls under this category). Unfortunately the common methods of doing so are much less than ideal. If a mood/alertness altering device became commonplace at least it would provide a better alternative to many current methods.
Agreed overall.
The come down I have seen people go through with adderall is very worrying. If I'm not mistaken Adderall is included in the list of drugs that the vast majority of mass shooters were on or had been prescribed.
Also, the long term effects of Adderall I've seen on peoples cognition is also very worrying. I've had a few friends prescribed it since they were kids (all guys) and now in thier 20s they can't study, read, or retain info without it. Plus, thier attention spans are shot.
Even beyond a mood/alertness device, I think people would be better served just learning how to actually use their minds capabilities. I think most people use only a very minor fraction of what the mind can actually do. I don't mean this in a woo woo way either. Its like training your body to sprint at high speeds, free climb a mountain face, perform in circ du soleil or deadlift 600lbs. The mind has a whole host of its own abilities that can be cultivated. Transhumanism in general is slightly worrying in my opinion.