Okay, but why do we cling to our views so tenaciously after they are formed? Interesting clues come from two areas of study… self-affirmation, and Cultural Cognition. Both areas suggest that we cling to our views because the walls of our opinions are like battlements that keep the good guys inside (us) safe from the enemy without (all those dopes with different opinions than ours). Quite literally, our views and opinions may help protect us, keep us safe, literally help us survive. Small wonder then that we fight so hard to keep those walls strong and tall.