I agree it is somewhat subjective. However it was backed up by a study my ex-gf did a few years ago into drug use. She interviewed hundreds cannabis users acro

I agree it is somewhat subjective. However it was backed up by a study my ex-gf did a few years ago into drug use. She interviewed hundreds cannabis users across the country and across various social strata - her general comment was that or the most part users did tend towards the slump. There were certainly a lot more "listless sacks of flesh" than high-functioning individuals (but she also noted that those who were "functioning" tended towards the extraordinary as opposed to just sticking on the normal curve). I avoid using that as too much proof because it is entirely possible, and even likely, that cannabis is only a contributing factor in this and not outright cause.