Marijuana smoking is a knowledge trade. Yes short term memory may be a byproduct of smoking, but a better understanding of the world and urself is also a byproduct. also a lot of dumb smokers are stupid because they allow the silly stoner stereotype to be their image. That is how the media brainwashes people, through sterotypes. Yes I act silly, but if u seem smart to urself then it doesn't matter if u are stupid. Only live for the world that u are in, not hte one that others are in.