It is crucial that readers understand how natural this process of selective observation, assessment, and retention of evidence is. One has to make the conscious effort to seek out, listen, and consider evidence that goes against the grain and feels wrong. It can be hard work and often is uncomfortable, but it must be done. Good thinking demands it. If you are a Christian, go to the trouble of actually listening when a Muslim tries to sell you on the Koran and Muhammad. It can be worth the time spent. If nothing else, you are likely to learn something new about a belief system you may not have known much about but is important to more than a billion of your fellow human beings. You may also learn things about your own belief system and your thought process about it as well. If you are an atheist, don't pretend that you have this and all other possible universes figured out from top to bottom. If they come calling, listen to the Mormon, the Scientologist, the Hindu, the Buddhist, and so on. Time is a finite resource, of course, so one wouldn't want to squander too much time on too many claims that may lead nowhere. But we all can find moments here and there to give alternative views a hearing. It's polite, it's mature, and it's good thinking. No matter how sure you are that you are right and the are wrong, listen. Keep in mind that we never know if confirmation bias has made a fool of us on a particular subject. It operates beneath our conscious awareness. So all we can do is stay humble and try our best to be fair to the contrary arguments and evidence we encounter.
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