haha! i understand! the main issue that started the discussion...the featured article of this thread... or plainly the fact some specialist are claiming marijuana is less harmful than alcool on the road...
Marijuana does cause impairment. People should not drive while stoned. While I do not think people should drive impaired on any substance, I will say that I do think that alcohol can cause more impairment than marijuana. I would be less afraid to drive on a road full of drivers who had been smoking pot than one full of drunk drivers. A low dose of either substance is not likely to cause much impairment. A high dose of either will cause impairment, but overall alcohol seems to be cause the most impairment at higher doses relative to the impairment caused by marijuana at high doses. I am speaking from personal experience, so it does not surprise me at all that most research comparing the effects of both drugs with regard to relative impairment reaches the same conclusions.