I too am a product of the 60s and 70s; starting cannabis use on a near daily basis at 15. In these last 40 years I managed to put myself through universities, sometimes on scholarship and sometimes on sweat. Two Masters and a PhD later, plus decades of observation I'm convinced that with or without cannabis use a slacker is a slacker - granted, I was 45 when I received received my DrPH. I have watched both stoners and "straights" succeed and fail in fulfilling their potential and their dreams in equal measure. It's not cannabis use that makes the difference. It's Will and Desire. I see little difference in the 30 something sitting and playing video games and the 30 something sitting and watching Fox News. Both have learned from societyandfamilies to make decisions based on fear.