30+ years...I'd say (in my experience) you do become more able to function 'normally' while high. The buzz is still there, but you can either let the buzz take over and relax with it, or function and let the buzz keep you balanced (If you know what I mean).
Eg: You could relax back and listen to Dark Side of the Moon and *hear* it in the classic stoner sense...but you could also head out and drive to the local store and interact with humans without going through the paranoia that you may have suffered in early smoking days. |