Is modern life better than the Stone Age? Why or why not? I recently forced students in my scitech history class to contemplate these questions. I presented their responses in a recent post and said that soon I’d provide my own answer. Here goes.

“In today’s world anyone can try to do anything they want,” wrote Tim, one of my students. “It is this freedom of choice that is the reason why I would rather live in modern times than in the Paleolithic era.” Yes! I agree with Tim. I can live (albeit with difficulty) like a Stone Ager, but he can’t live like me. I prefer modern life because it offers more choices than the Paleolithic era–or, to put it more controversially, more opportunities for exercising free will. Why is that phrasing controversial? Because some scientists have questioned whether free will exists.

Take for example Harvard psychologist Daniel Wegner. In his disturbing book “The Illusion of Conscious Will,” Wegner notes that we think of our will as a kind of force that initiates action, but actually will is “merely a feeling.” I think, “I’m going to watch the Giants now instead of writing this essay” and then flip on the TV. I feel like my thought turned the TV on, but as we all know, correlation does not equal causation.

Neurologists can make patients’ limbs jerk by electrically zapping certain regions of their brains. The patients often insist they meant to move that arm, and they even invent reasons why. Neurologists call these erroneous, post-hoc explanations confabulations, but Wegner prefers the catchier “intention inventions.” He suggests that whenever we explain our acts as the outcome of our conscious choice, we are engaging in intention invention, because our actions actually stem from countless causes of which we are completely unaware.

He cites experiments in which subjects pushed a button whenever they chose while noting the time of their decision as displayed on a clock. The subjects took 0.2 seconds on average to push the button after they decided to do so. But an electroencephalograph monitoring their brain waves revealed that the subjects’ brains generated a spike of brain activity 0.3 seconds before they decided to push the button.

Other research has indicated that the neural circuits underlying our conscious sensations of intention are distinct from the circuits that actually make our muscles move. This disconnect may explain why we so often fail to carry out our most adamant decisions. This morning, I vowed to write all afternoon rather than watch football, but somehow I ended up watching the end of the Giants-Chiefs game.

Sometimes our intentions are self-thwarting. The more I tell myself not to turn on the TV, the more I want to do it. Wegner attributes these situations to “ironic processes of mental control.” Edgar Allan Poe’s phrase “the imp of the perverse” even more vividly evokes that mischievous other we sometimes intuit lurking within us. Wegner suggests that the concept of a unified self, which is a necessary precondition for free will, is an illusion, and so is free will.

Summing up, Wegner quotes the scifi writer Arthur C. Clark’s remark that “any sufficiently advanced technology is indistinguishable from magic.” Because we cannot possibly understand how the fantastically complex machines in our skulls really work, Wegner says, we explain our behavior—and that of others–in terms of such silly, occult concepts as “the self” and “free will.”

I choose to reject Wegner’s conclusion. Free will works better than any other single criterion for gauging the vitality of a life, or a society. To me, choices, freely made, are what make life meaningful. Moreover, our faith in free will has social value. It provides us with the metaphysical justification for ethics and morality. It forces us to take responsibility for ourselves rather than consigning our fate to our genes or God. I don’t believe in God, but I do believe in free will. I’ll explain why soon.


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