Really?
Why do they do it?
People that resist countless DBTs, and other blatantly obvious tests that show clearly what is, and what isn't true. Is it possible that there are so many people that follow this line of thought are the same kind of people that are killing the economy? Are they just plain stupid? (eh, maybe that one's a combination of greed and stupid).
Forgive my mini-rant. I just comprehend what could possibly be going through someone's head when they deny logic, and truly believe their bias must be, and has to be correct.