It is an interesting read "an array of new discoveries in psychology and neuroscience has further demonstrated how our preexisting beliefs, far more than any new facts, can skew our thoughts and even color what we consider our most dispassionate and logical conclusions. This tendency toward so-called "motivated reasoning" helps explain why we find groups so polarized over matters where the evidence is so unequivocal: climate change, vaccines, "death panels," the birthplace and religion of the president (PDF), and much else. It would seem that expecting people to be convinced by the facts flies in the face of, you know, the facts."
What I also see here on this forum (everywhere) is confirmation bias where 'birds of a feather will flock together' be it politics, belief in god, conspiracies etc. Of course confirmation Bias is the glue that holds a group together like the JW's. But it's a serious trap because the bias extends to misinformation being accepted as truth. With the internet you can now have your own facts to copy and paste. With a little distortion you can create a 'truth' that someone else can adopt.