All fanatics share a common thread: a firm adherence to absolute certainty in relation to their leaders. But what happens when these beliefs crumble, challenged by data, facts or realities? An internal alarm is activated. A kind of ray on the disc of their cosmovision. They face a psychological crossroads. On the one hand, their beliefs come from feelings and “loving” that give them a sense of moral or intellectual superiority. On the other hand, evidence and opposing opinions indicate that they can be wrong. What to do? To reduce dissonance, that deaf psychological inconvenience, they entrust themselves even more to sectarian behavior. Trapped in their beliefs, they are surrounded by echoes that repeat their own thoughts and discredit, ridicule and ignore another that contradicts their