Usually, when philosophers try to explain why someone believes things (weird or otherwise), they focus on that person’s reasons rather than their character traits. On this view, the way to explain why Oliver believes that 9/11 was an inside job is to identify his reasons for believing this, and the person who is in the best position to tell you his reasons is Oliver. When you explain Oliver’s belief by giving his reasons, you are giving a ‘rationalising explanation’ of his belief.
The problem with this is that rationalising explanations take you only so far. If you ask Oliver why he believes 9/11 was an inside job he will, of course, be only too pleased to give you his reasons: it had to be an inside job, he insists, because aircraft impacts couldn’t have brought down the towers. He is wrong about that, but at any rate that’s his story and he is sticking to it. What he has done, in effect, is to explain one of his questionable beliefs by reference to another no less questionable belief.
So the problem is not their beliefs as such, but why the person came to have the whole set of (misguided) beliefs in the first place. The way to understand conspiracists is in terms of their intellectual character, Cassam argues, the vices and virtues that guide as us as thinking beings.
A problem with this account is that – looking at the current evidence – character flaws don’t seem that strong a predictor of conspiracist beliefs. The contrast is with the factors that have demonstrable influence on people’s unusual beliefs. For example, we know that social influence and common cognitive biases have a large, and measurable, effect on what we believe. The evidence isn’t so good on how intellectual character traits such as closed/open-mindedness, skepticism/gullibility are constituted and might affect conspiracist beliefs. That could be because the personality/character trait approach is inherently limited, or just that there is more work to do. One thing is certain, whatever the intellectual vices are that lead to conspiracy theory beliefs, they are not uncommon. One study suggested that 50% of the public endorse at least one conspiracy theory.
Link : Bad Thinkers by Quassim Cassam
Paper on personality and conspiracy theories: Unanswered questions: A preliminary investigation of personality and individual difference predictors of 9/11 conspiracist beliefs
Paper on widespread endorsement of conspiracy theories: Conspiracy Theories and the Paranoid Style(s) of Mass Opinion
Previously on Mindhacks.com That’s what they want you to believe
And a side note, this view that the problem with conspiracy theorists isn’t the beliefs helps explain why throwing facts at them doesn’t help, better to highlight the fallacies in how they are thinking.