'In this atmosphere, we’re all less conscious of our severe mental shortcomings and less inclined to be skeptical of our own opinions. Occasionally you surf around the Web and find someone who takes mental limitations seriously. For example, Charlie Munger of Berkshire Hathaway once gave a speech called “The Psychology of Human Misjudgment.” He and others list our natural weaknesses: We have confirmation bias; we pick out evidence that supports our views. We are cognitive misers; we try to think as little as possible. We are herd thinkers and conform our perceptions to fit in with the group.
But, in general, the culture places less emphasis on the need to struggle against one’s own mental feebleness. Today’s culture is better in most ways, but in this way it is worse.
The ensuing mental flabbiness is most evident in politics. Many conservatives declare that Barack Obama is a Muslim because it feels so good to say so. Many liberals would never ask themselves why they were so wrong about the surge in Iraq while George Bush was so right. The question is too uncomfortable.'