“Our intolerance of uncertainty can leave us clutching at any form of certainty, and research shows that the certainty of fundamentalist religions, extreme political groups, radical interest groups, and conspiracy theorists can offer a tempting relief to our anxiety. There may be a part of us that knows what is being offered is not the whole truth, because it is so polished and oversimplified, but we prefer claiming to know rather than admit that, for a great deal of life, we cannot know.”