Anybody red Eric Hoffer? I think that his book was called the "True Believer"....

You cannot argue with them. No amount of logic, evidence, etc. will ever change these people. Maybe the idea that they are wrong is SO horribly threatening to them? I don't know. In some cases, it is a social thing---these folks cluster together and reassure each other that they are RIGHT. Any dissent is taken as disloyalty, betrayal of their family, etc.

Very sad that throughout human history, "true believers" have caused a hideous amount of harm. Witch hunts still exist, people are stoned for sex, twenty percent of Americans think that Obama is a Muslim, many don't think that Hawaii is part of the United States, God gives ME the right to kill somebody who doesn't accept my version of him....it goes on and on. AND, of course,scientists are all in a conspiracy of some sort. Especially geologist, because they when the next quake is going to happen!!