Religionists sometimes accuse nonbelievers of having faith. Every time you flip a light switch you exercise faith, they say. But this is not faith; it is a rational expectation based on experience and knowledge of electricity. If the light fails to turn on, my worldview is not shattered. I expect that the light will sometimes fail due to a burnt-out bulb, blown circuit or other natural cause. This is the opposite of religious faith. The light does not turn on because of my expectation. Rather, my expectation is based on experience. If lights were to begin failing most of the time, I would have
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