The great logician and mathematician, Alfred Tarski, was an amphetamine user. As well as great sci fi writer Philip K. Dick.
So, in vulgar Popperian fashion, I declare the theories in your posts to be falsified!
So, in vulgar Popperian fashion, I declare the theories in your posts to be falsified!
I think it comes down to a matter of values, i.e. the long-term constant health of your physical brain vs. the benefit from getting extra bursts of energy to focus on immediate work. Not something science can really answer.
BTW, the experience varies for people, and I suspect that if the drug is giving you that "speed" sensation it may not be a good choice. Stimulants calm me down. =I don't get a burst of energy; I relax and make plans, and see them through.