There's a short story approximately a guy who's so afraid of other people reading his intellect that he wears a tin foil hat to protect his thoughts. The tin foil part is crazy,but protecting your intellect is perhaps not such a noxious idea. Academic psychologist Rob Brotherton says there are certain psychological traits that predispose people to believe in conspiracy theories. For example, there's an experiment done by a group of psychologists in Amsterdam. It involves a group of subjects and a messy desk.
FIND OUT HOW LIKELY YOU ARE TO BELIEVE IN CONSPIRACY THEORIES BY TAKING ROB'S QUIZ.
Source: wnyc.org