Can weed dangerous in the long run?

I'd urge you not to: This isn't the place to debate the wisdom of the cannabis laws or compare with alcohol. We're not seeing deaths from the physical effects despite decades of dire warnings, and it's proved difficult to demonstrate long-term effects on the brain especially given that hard-core stoners may be dumber in the first place -- but "pop" wisdom may still be right. Don't drive on weed.