You have no knowledge on what marijuana does. Here are a few things I do know. It doesn't take a rocket scientist to know marijuana is not addictive. I know that it is a central nervous system depressant, much like alcohol. As a matter of fact, THC, the active ingredient in marijuana, tetrahydrocannican[b]ol[/b] is in fact an alcohol, if you know your junior organic chemistry. Ethanol (drinking alcohol) is an addictive substance because it causes you to think less, which can relieve stress by reducing your thinking capacity. When it wares off, you think about thing again, except with a hangover, which is why you drink more, to keep you from thinking. THC does the opposite. It make your mind wonder. It doesn't stop you from thinking. It relaxes your muscles, and allows you to observe your thoughts from a different perspective. Alcohol totally nullifies your thoughts. THC has nothing to do with dopamine or serotonin, the key chemicals in the brain that give you pleasure and satisfaction, which is you mess with, will make you an addict. Which leads me to a comparison with [i]stimulant[/i] drugs. In comparison with nicotine or cocaine, both extremely addictive substances, these work also the exact opposite of THC. They stimulate dopamine receptors inside of your brain and make you feel good. When your brain realizes that the dopamine in there is waaaay too high, when the drug wears off, the brain will further restrict dopamine inside of your brain, causing withdrawal. THC does not do this. Smoking weed is like watching your favourite TV show. Sure, you can binge watch it all day every day, but eventually it gets boring, and you could easily stop at any point. But since it fu[i]c[/i]king cures cancer, why would you? No hangover the next day, no addiction. Why is it such a menace?