Anthropologist Barbara J. King explains what our distant cousins can tell us about religion and why it's OK for scientists to believe in God.
Every human culture has believed in spirits, gods or some other divine being. That's why human beings have often been called Homo religioso. Some people take this long history of belief in the otherworldly as evidence for God; doesn't it explain why religion continues to be so pervasive? But many scientists are coming up with their own, decidedly secular, theories about the origins of faith. In fact, over the last few years, a small cottage industry made up of scientists and philosophers has devoted itself to demystifying the divine.
Take Daniel Dennett, the philosopher who has proposed that religion is a meme -- an idea that evolved like a virus -- that infected our ancestors and continued to spread throughout cultures. By contrast, anthropologist Pascal Boyer argues that religious belief is a quirky byproduct of a brain that evolved to detect predators and other survival needs. In this view, the brain developed a hair-trigger detection system to believe the world is full of "agents" that affect our lives. And British biologist Lewis Wolpert, with yet another theory, posits that religion developed once hominids understood cause and effect, which allowed them to make complex tools. Once they started to make causal connections, they felt compelled to explain life's mysteries. Their brains, in essence, turned into "belief engines."
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