Why do people believe conspiracy theories? Apparently there are several reasons, but most reasons amount to intellectual laziness, by which I mean that people don't bother thinking about the matter but just accept something that fits what they want to believe without examining the facts. You are entitled to your own opinions but not your own facts. Within the last few days I ran into a few people who still believe that the 9/11 attacks were not what has been presented by the investigators. ...