Not only that, the amount of things you accomplish in that time span is far greater. So it really does turn you into a 10x engineer. If you're already very strong, experienced, pragmatic, etc.. then the stimulants will truly make you feel invincible.
So if you see a software engineer at a big company who is making 200k a year while simultaneously putting out dozens of open source projects a year, maintaining them, speaking at conferences, managing complex hobbies, etc... chances are that is due to a stimulant drug. I know very few people who are capable of that naturally.
Edit: What I see a lot of is people who think they are super productive while churning out lines and lines of garbage.
Then tolerance rears its head and it becomes exactly like you said. For me it takes till I get close to t_max (peak blood concentration) that my day really starts, which is from 1-3 hrs after dosing (closer to 3 for the drugs I take)
There is a funny meme I saw recently that rings true:
Two biggest shocks of adult life.
1. everyone does cocaine
2. cheese is fucking expensivehttps://www.drugabuse.gov/publications/drugfacts/drug-relate...
if we don't know what the outcome of these ER visits are, then it could well be that for some tiny percentage of cocaine users there is a side effect that causes the perception of chest pain, which disappears with no ill effects after a few hours. or, maybe, this represents almost all cocaine users - 90% of them experience severe enough chest pain to warrant an ER visit, all of whom are pronounced dead withing minutes of arrival.
annoyingly, the website you linked to which details this singular datum, does nothing to clarify as to what the truth of the matter is. it certainly doesn't appear to be "advancing addiction science" in any useful way...
Work smart or go home.