I bet you can die from pure THC. Like, cook down 5 pounds of Marinol pills into a gooey sludge of pure THC and use a turkey baster to squirt all of that down your throat. I'm betting that'd have a serious bad effect on the human body. But...you'd really have to work damn hard at it and be *trying* to die in an imaginative way to go through all that effort.

Just smoking pot? I don't think you can really overdose that way, as long as it's clean unlaced pot. I don't think the human lungs are capable of handling the amount you'd need to smoke to OD before your lungs themselves would collapse from the smoke, or you'd pass out from lack of oxygen getting to your brain. In other words, if you suffocate yourself with smoke, *that* might kill you, but that'd be true of any kind of smoke, whether from cannabis or not.