Monday, March 05, 2007

An assurance of safety and a temper of peace

Darwin’s God By ROBIN MARANTZ HENIG In the world of evolutionary biology, the question is not whether God exists but why we believe in him. Is belief a helpful adaptation or an evolutionary accident? NYTimes.com Homepage: March 4, 2007 (Page 8 of 11)
Belief is our fallback position, according to Bering; it is our reflexive style of thought. “We have a basic psychological capacity that allows anyone to reason about unexpected natural events, to see deeper meaning where there is none,” he says. “It’s natural; it’s how our minds work.”
Intriguing as the spandrel logic might be, there is another way to think about the evolution of religion: that religion evolved because it offered survival advantages to our distant ancestors. This is where the action is in the science of God debate, with a coterie of adaptationists arguing on behalf of the primary benefits, in terms of survival advantages, of religious belief.
The trick in thinking about adaptation is that even if a trait offers no survival advantage today, it might have had one long ago. This is how Darwinians explain how certain physical characteristics persist even if they do not currently seem adaptive — by asking whether they might have helped our distant ancestors form social groups, feed themselves, find suitable mates or keep from getting killed. A facility for storing calories as fat, for instance, which is a detriment in today’s food-rich society, probably helped our ancestors survive cyclical famines.
So trying to explain the adaptiveness of religion means looking for how it might have helped early humans survive and reproduce. As some adaptationists see it, this could have worked on two levels, individual and group. Religion made people feel better, less tormented by thoughts about death, more focused on the future, more willing to take care of themselves. As William James put it, religion filled people with “a new zest which adds itself like a gift to life . . . an assurance of safety and a temper of peace and, in relation to others, a preponderance of loving affections.”
Such sentiments, some adaptationists say, made the faithful better at finding and storing food, for instance, and helped them attract better mates because of their reputations for morality, obedience and sober living. The advantage might have worked at the group level too, with religious groups outlasting others because they were more cohesive, more likely to contain individuals willing to make sacrifices for the group and more adept at sharing resources and preparing for warfare.
One of the most vocal adaptationists is David Sloan Wilson, an occasional thorn in the side of both Scott Atran and Richard Dawkins. Wilson, an evolutionary biologist at the State University of New York at Binghamton, focuses much of his argument at the group level. “Organisms are a product of natural selection,” he wrote in “Darwin’s Cathedral: Evolution, Religion, and the Nature of Society,” which came out in 2002, the same year as Atran’s book, and staked out the adaptationist view. “Through countless generations of variation and selection, [organisms] acquire properties that enable them to survive and reproduce in their environments. My purpose is to see if human groups in general, and religious groups in particular, qualify as organismic in this sense.”
Wilson’s father was Sloan Wilson, author of “The Man in the Gray Flannel Suit,” an emblem of mid-’50s suburban anomie that was turned into a film starring Gregory Peck. Sloan Wilson became a celebrity, with young women asking for his autograph, especially after his next novel, “A Summer Place,” became another blockbuster movie. The son grew up wanting to do something to make his famous father proud.
“I knew I couldn’t be a novelist,” said Wilson, who crackled with intensity during a telephone interview, “so I chose something as far as possible from literature — I chose science.” He is disarmingly honest about what motivated him: “I was very ambitious, and I wanted to make a mark.” He chose to study human evolution, he said, in part because he had some of his father’s literary leanings and the field required a novelist’s attention to human motivations, struggles and alliances — as well as a novelist’s flair for narrative.
Wilson eventually chose to study religion not because religion mattered to him personally — he was raised in a secular Protestant household and says he has long been an atheist — but because it was a lens through which to look at and revivify a branch of evolution that had fallen into disrepute. When Wilson was a graduate student at Michigan State University in the 1970s, Darwinians were critical of group selection, the idea that human groups can function as single organisms the way beehives or anthills do. So he decided to become the man who rescued this discredited idea. “I thought, Wow, defending group selection — now, that would be big,” he recalled. It wasn’t until the 1990s, he said, that he realized that “religion offered an opportunity to show that group selection was right after all.” 1 2 3 4 5 6 7 8 9 10 11 Robin Marantz Henig, a contributing writer, has written recently for the magazine about the neurobiology of lying and about obesity.

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