It is also the basis of much conspiracy theorizing. The chain of logic is: 1. Group X has an incentive to do Y 2. We observe Y 3. We also observe specific in

It is also the basis of much conspiracy theorizing. The chain of logic is: 1. Group X has an incentive to do Y 2. We observe Y 3. We also observe specific instances of X doing Y 4. Therefore, all Y is caused by X The problem, obviously, comes in step 4.