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Does science make belief in God obsolete?

Steven Pinker
Posted: November 29, 2009.

Print: John Templeton Foundation

(Response to the question “Does science make belief in God obsolete?”)

Yes, if by “science” we mean the entire enterprise of secular reason and knowledge (including history and philosophy), not just people with test tubes and white lab coats.

Traditionally, a belief in God was attractive because it promised to explain the deepest puzzles about origins. Where did the world come from? What is the basis of life? How can the mind arise from the body? Why should anyone be moral?

Yet over the millennia, there has been an inexorable trend: the deeper we probe these questions, and the more we learn about the world in which we live, the less reason there is to believe in God.

Start with the origin of the world. Today no honest and informed person can maintain that the universe came into being a few thousand years ago and assumed its current form in six days (to say nothing of absurdities like day and night existing before the sun was created). Nor is there a more abstract role for God to play as the ultimate first cause. This trick simply replaces the puzzle of “Where did the universe come from?” with the equivalent puzzle “Where did God come from?”

What about the fantastic diversity of life and its ubiquitous signs of design? At one time it was understandable to appeal to a divine designer to explain it all. No longer. Charles Darwin and Alfred Russel Wallace showed how the complexity of life could arise from the physical process of natural selection among replicators, and then Watson and Crick showed how replication itself could be understood in physical terms. Notwithstanding creationist propaganda, the evidence for evolution is overwhelming, including our DNA, the fossil record, the distribution of life on earth, and our own anatomy and physiology (such as the goose bumps that try to fluff up long-vanished fur).

For many people the human soul feels like a divine spark within us. But neuroscience has shown that our intelligence and emotions consist of intricate patterns of activity in the trillions of connections in our brain. True, scholars disagree on how to explain the existence of inner experience - some say it’s a pseudo-problem, others believe it’s just an open scientific problem, while still others think that it shows a limitation of human cognition (like our inability to visualize four-dimensional space-time). But even here, relabeling the problem with the word “soul” adds nothing to our understanding.

People used to think that biology could not explain why we have a conscience. But the human moral sense can be studied like any other mental faculty, such as thirst, color vision, or fear of heights. Evolutionary psychology and cognitive neuroscience are showing how our moral intuitions work, why they evolved, and how they are implemented within the brain.

This leaves morality itself - the benchmarks that allow us to criticize and improve our moral intuitions. It is true that science in the narrow sense cannot show what is right or wrong. But neither can appeals to God. It’s not just that the traditional Judeo-Christian God endorsed genocide, slavery, rape, and the death penalty for trivial insults. It’s that morality cannot be grounded in divine decree, not even in principle. Why did God deem some acts moral and others immoral? If he had no reason but divine whim, why should we take his commandments seriously? If he did have reasons, then why not appeal to those reasons directly?

Those reasons are not to be found in empirical science, but they are to be found in the nature of rationality as it is exercised by any intelligent social species. The essence of morality is the interchangeability of perspectives: the fact that as soon as I appeal to you to treat me in a certain way (to help me when I am in need, or not to hurt me for no reason), I have to be willing to apply the same standards to how I treat you, if I want you to take me seriously. That is the only policy that is logically consistent and leaves both of us better off. And God plays no role in it.

For all these reasons, it’s no coincidence that Western democracies have experienced three sweeping trends during the past few centuries: barbaric practices (such as slavery, sadistic criminal punishment, and the mistreatment of children) have decreased significantly; scientific and scholarly understanding has increased exponentially; and belief in God has waned. Science, in the broadest sense, is making belief in God obsolete, and we are the better for it.

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Steven Pinker is the Johnstone Family Professor in the department of psychology at Harvard University. He is the author of seven books, including “The Language Instinct”, “How the Mind Works”, “The Blank Slate”, and most recently, “The Stuff of Thought: Language as a Window into Human Nature”.

Comments (11)

1. John Wilkinson

Very nice, but I have a little concern about Pinker’s statement “It is true that science in the narrow sense cannot show what is right or wrong.” I think this may not even be correct. As Sam argued in his talk at Beyond Belief (the one where he talked about what anthropologists had to say about moral relativism in the wake of the Holocaust), insofar as morality has to do with the suffering of beings capable of it, then science even in the narrow sense will provide answers. Does the evidence suggest that a pig feels excruciating pain, fear, distress etc. when tortured on a factory farm? According to what we know about their physiology, possession of a central nervous system, the brain, and what types of animals need to be sensitive to environmental stimuli and are social etc. the answer, if only to err on the side of caution is an unequivocal yes. The problem is the word morality is poorly defined in the heads of many people because of the respect we accord the imaginary wrongs of religious dogma.

posted on December 8, 2009
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A very good article and I agree with Pinker that science cannot determine what is right or wrong. John, taking your example, it is true science can tell us about whether a pig suffers in a farm factory. However, it says nothing about whether a pig suffering for our consumption is right or wrong.  Answering that question may be informed by scientific evidence but can’t be answered by it alone.

posted on December 8, 2009
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3. John Wilkinson

“However, it says nothing about whether a pig suffering for our consumption is right or wrong.  Answering that question may be informed by scientific evidence but can’t be answered by it alone.” I think I hit upon this in my last sentence. I mean only to say that whatever makes it wrong to treat some homo-sapiens other than ourselves as means to our ends(assuming you’ll agree to this?), applies to other species as well.

posted on December 8, 2009
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Actually, religion does a bad job of telling us what is right or wrong. It is too tribal: think Abraham and Isaac and all that smiting of Hittites and what not.  That science cannot tell us categorically what is right or wrong is invigorating. We actually have to think, weigh and decide.  Nothing to apologise for here.

posted on December 8, 2009
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“I think I hit upon this in my last sentence. I mean only to say that whatever makes it wrong to treat some homo-sapiens other than ourselves as means to our ends(assuming you’ll agree to this?), applies to other species as well”

Yes, I do happen to agree with you. But I mostly agree for moral reasons and less so for scientific ones (although science does play a role). Again, I don’t think science alone can tell us whether we should extend the right-wrong rules we have for homo-sapiens to other species.  At some point, values, morality, and reason need to enter the conversation to really answer this.

posted on December 9, 2009
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6. skeptycalone

“However, it says nothing about whether a pig suffering for our consumption is right or wrong. “
The pig suffering has nothing to do with consumption and everything to do with greed.  Factory farmed animals suffer because it’s the cheapest way to do it.  While I agree science alone can’t address the morality of this question, its morality can not be addressed without science.

posted on December 9, 2009
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Skeptycalone, that is my point (which I make above). I agree that greed drives much of the mass production (and suffering) of pigs and other animals. Also, greed and whether it is right or wrong to engage in it is mostly a moral argument than a scientific one.

posted on December 10, 2009
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8. skeptycalone

Mike, so here’s a question.  Is there a way to develop any non-subjective, non-relative, non-theistic system (moral or whatever) that isn’t science based?  John brought up a good point about moral relativism

posted on December 10, 2009
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I think science probably is the best system we have to make an attempt at objective observation and the development of an objective system of belief.  (I point out though that not even science is completely objective. Science begins with a question that can very well be subjective.) 

I don’t think science by itself or any other objective system of belief can develop an objective standard for morals. Morals are inherently subjective (but can be informed by science).  I think the best approach to arrive at a moral system of belief is through presentation of scientific evidence AND debate/discussion/reason on human values. Both of these components are critical.

posted on December 11, 2009
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10. John Wilkinson

I mean science in the broad sense of reason, in which I would include alll open honest discussion where “certainty scales with the evidence” Here I would include philosophy, literature, music/art etc.

To answer Skeptyc I think that if we defined morality according to the criteria of the potential suffering of beings who can, we find that non-relative answers await and moreover many absurd conundrums and “problems” evaporate.

posted on December 11, 2009
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If you are interested in the difference between right and wrong religion is a good place to take a look and whatever it says is wrong is usually right and vice versa.

posted on December 27, 2009
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