Unpredictable Cannabis
One problem with making public policy on marijuana is the drug's unpredictable effects: dosage amount, the person and the state they are in upon consumption vary widely.
“It’s very difficult to generalize about the effects of most drugs. Just look at marijuana: One of the recurring mysteries of the drug is why the same compound can both relax us and make us paranoid; it sometimes causes uncontrollable laughter and sometimes leads to runaway anxiety. This suggests that the context of use—our mental state when smoking a joint, or eating a pot brownie—can profoundly influence the outcome. While it remains mostly unclear how or why this happens, there’s some interesting new research on endocannabinoids in rough-skinned newts…”
