[Blahah]

Your last point is a particularly interesting one. A lot of the most productive and skilled people I know are also very clean. But a good number of them are also using stimulants.

I think we all inhabit a world of people who think they are productive - in the sense that many people optimise for the appearance of productivity as opposed to optimising for actual productivity or value generation. I can honestly say that stimulants make a vast, objective difference to my work output and quality (but I actually do have ADD so I'm not a good measure). I have also seen many other people produce extraordinarily good work on stimulants. At the same time some of the very best people I know don't need them and wouldn't touch them. We don't all have the natural ability or background those people have, so stimulants are a proxy. Quite probably many people are not achieving their maximum potential simply by using stimulants. Quite probably many people are decreasing the quantity or quality of their output by using stimulants. But objectively (as in, see the scientific literature) they do work. Whether people make them work for them is a different matter.

[alexbeloi]

>I can honestly say that stimulants make a vast, objective difference to my work output and quality

What objective measures are you using to evaluate yourself? are you in the top 1% of earners for your experience level, position, city?

[Blahah]

I am not comparing myself to others, but to myself without stimulants. I simply do more and better work, by very simple measures like completing tasks and delivering projects to the satisfaction (or joy) of my clients.