Thus was born the realization that there is a dangerous demon on the loose. When I was a YEC, I had a demon that did similar things for me that Maxwell's demon did for thermodynamics. Morton's demon was a demon who sat at the gate of my sensory input apparatus and if and when he saw supportive evidence coming in, he opened the gate. But if he saw contradictory data coming in, he closed the gate. In this way, the demon allowed me to believe that I was right and to avoid any nasty contradictory data. Fortunately, I eventually realized that the demon was there and began to open the gate when he wasn't looking.
However, my conversations have made me aware that each YEC is a victim of my demon. Morton's demon makes it possible for a person to have his own set of private facts which others are not privy to, allowing the YEC to construct a theory which is perfectly supported by the facts which the demon lets through the gate. And since these are the only facts known to the victim, he feels in his heart that he has explained everything. Indeed, the demon makes people feel morally superior and more knowledgeable than others.
The demon makes its victim feel very comfortable as there is no contradictory data in view. The demon is better than a set of rose colored glasses. The demon's victim does not understand why everyone else doesn't fall down and accept the victim's views. After all, the world is thought to be as the victim sees it and the demon doesn't let through the gate the knowledge that others don't see the same thing. Because of this, the victim assumes that everyone else is biased, or holding those views so that they can keep their job, or, in an even more devious attack by my demon, they think that their opponents are actually demon possessed themselves or sons of Satan. This is a devious demon!