Thank you for the detailed and interesting comment. I wish I could maintain my productivity for extended periods of time like you do. Unfortunately I find that my cognitive abilities drop-off very quickly when become tired.
Also you talk of an 'intelligence switch'. Could you explain what you mean by that?
Or perhaps these people simply aren't hedonists that orientate their lives around momentary pleasures. Instead, they derive pleasure from achievement and building things.
Recreational drugs, on the other hand, have ruined millions of people lives. You are being disengenuous to suggest that they have a positive effect to most people.
Finally, no one "intended" drugs to be anything. They are simply tools that humans have discovered. It is ludicrous to suggest that they have specific intention.
Also you talk of an 'intelligence switch'. Could you explain what you mean by that?