Caffeine and l-theanine (basically the stuff in green tea) seems to noticeably improve my performance but I have never used any of the harder stuff like amphetamines (which Erdős is a well known user of).
Just wondering if anybody have done experiments on this before. For example, do some rounds on one account while on whatever drugs and do some rounds clean on another alt, then compare the performances. I feel like CF rating converges fast enough that it'll probably be a somewhat reliable benchmark?
Anyone have any anecdata?