The official blog of University of Missouri Skeptics, Atheists, Secular Humanists, & Agnostics
Dave Muscato here again. Tonight, a group of us attended a public lecture from guest speaker Michael Gazzaniga, the renowned psychobiologist famous for his research on “split brain” patients: people who have had the two hemispheres of their brains surgically separated from one another, in order to treat epilepsy.
He spoke tonight about free will: Do we have it? What does “free will” mean? What are some of the implications, specifically legal, if we do not?
In a sentence, he demonstrated that from a neuroscience (indeed, scientific) context, it is quite clear that we lack free will. In fact, he goes so far as to argue that the concept of “free will” is nonsensical and should be disposed of: Free from what? The laws of physics? No, each cell of our brain follows predictable patterns of behavior, i.e. is soul-less and automated, and our brains are “merely” highly parallel and complex conglomerations of cells. No where in this equation arises a homunculus, a “mind” within our brain that makes decisions separate from itself, no matter how much we might wish for this to be so, or how much it feels to us like this is the case.
Here’s where I think he lost us: Gazzaniga went on to argue that, while our brains do not have free will, persons (in a society) do. I don’t think he justified this leap. His argument, as best as I could understand it, was that individual responsibility arises on the level of a society, rather than on the level of the individual. He gave the analogy of a car, versus traffic. Regardless of one’s mechanical understanding of the operation or construction of a car, you cannot extrapolate or understand traffic patterns by observing a car in isolation. Similarly, humans in isolation lack responsibility—a single human just follows patterns of behavior and isn’t responsible “to” anyone—but in the context of living in a society, we can hold individuals responsible for their behavior.
This seems to me to call for the application of the is/ought problem. I think Gazzaniga was trying to say that, descriptively, societies hold individuals responsible for their behavior, and that this is permissible because individuals should be held accountable for their wrongdoings. What I don’t understand is, where did that “should” come in? Is he making an ethical argument here? Because up until that point, he’d been speaking descriptively. I understand why societies would do good to hold individuals accountable for wrongdoings, but that doesn’t mean “persons have free will” just because they live in societies. Persons may be responsible for their individual wrongdoings—it’s not like anyone ELSE is responsible for a person’s actions—but I don’t understand why he argues this means that they magically have free will.
I’m considering writing a talk of my own about free will, based loosely on Sam Harris’s “Free Will,” the Free Will chapter in The Big Questions by Nils Rauhut, and some guided discussion questions of my own design. What do you guys think? Would SASHA be interested in that for December?
Dave Muscato is the Kansas/Missouri-Area Volunteer Network Coordinator for the Secular Student Alliance. He is also a board member of MU SASHA. He is a vegetarian, LGBTQ ally, and human- & animal-welfare activist. A non-traditional junior at Mizzou studying economics & anthropology and minoring in philosophy & Latin, Dave posts updates to the SASHA blog every Monday, Thursday, and Saturday and twice monthly for the Humanist Community at Harvard. His website is http://www.DaveMuscato.com. Opinions posted here do not necessarily reflect the views of MU SASHA, the Secular Student Alliance, nor the Humanist Community at Harvard.
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