Witness, too, our human tendency to clarify our identity with group labels. Liberals hold in common certain beliefs and values regarding human society and government, and the same is true if you call yourself a Republican, an atheist, a Christian, or even a golfer. This tendency is so powerful, it can actually cause us to unconsciously filter out and dismiss any information that contradicts our chosen group’s identity or norms. One of the reasons so much tension exists between differing social groups is that we humans have a hard time processing information that could challenge or undermine
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