Oh, ok. I think we are in agreement - I didn't mean to suggest that there were long-term effects years after quitting, but that there are long-term effects of use - which perhaps I should have described as "effects of long-term use."

I agree that the jury is not in yet on whether there are long-term effects years after cessation except for adolescent use (and - by the way - old people: if you are over 70, smoking pot does appear to retard dementia and cognitive decline).