[salmon30salmon]

I had no visceral response to what you said :)

I agree, groupthink is a natural artifact of groups. If there are more liberal people in a group, their groupthink will be more liberal. Couple this with confirmation bias and we have a problem. Couple _that_ with the fact that there are actors, both from a profit motive and for other motives, that are attempting to exacerbate and increase that divide, and we have an even larger problem.