[ragestorm]

Weed is not harmless. The question I always ponder is if it's more harmful than X. Alcohol, methamphetamines, etc.

Rescheduling is a start for more research into whether weed is causing these episodes or highlighting other underlying causes.

It seems like your friends arguement that it's legal for continued use is asinine. Plenty of prescription drugs are legal per se but would have adverse effects for some.