I can't believe anyone would post such nonsense but every few weeks someone does. Congratulations.
I will tell you this in my wild hey day I have driven drunk holding my hand over one eye so I could see to drive not a smart thing to do and Thank GOD I never was in an accident I have also smoked pot and driven smart thing to do? maybe not but I saw the road just fine...And You?
See also: Hansteen, R.W., et al, "Effects of Cannabis and Alcohol on Automobile Driving and Psycho-motor Tracking", Annals of New York Academy of Sciences, 282: 240-56 (1976).
See also: Moskowitz, H., et al, "Marijuana: Effects on Simulated Driving Performance", Accident Analysis and Prevention 8: 45-50 (1976).
See also: Peck, R.C., et al, "The Effects of Marijuana and Alcohol on Actual Driving Performance", Alcohol, Drugs and Driving, 2: 135-54 (1986).
". . .either that cannabis. . .actually increases driving ability or. . .that drivers taking cannabis overcompensate for any loss of driving skills". Chait, L.D. and Pierri, J., "Effects of Smoked Marijuana on Human Performance: A critical Review", pp. 387-424 in Murphy, L. and Bartke, A. (eds),Marijuana/Cannabinoids: Neurobiology and Neurophysiology, Boca Raton: CRC Press (1992).
All these are a sample; there are plenty more.
If you wave your prejudices in everyone's faces without doing any research on their credibility, you just end up sounding ignorant.