MODERATOR: Welcome to another edition of Clash of
Worldviews, the show in which our guests cry out philosophical ideas in the
wilderness. We’re joined this evening by biologist and determinist, Professor
Sam Harrison Coyney, who believes free will is an illusion. Arguing against his
position is Adam Garnett, noted liberal secular humanist and believer in the
existence of human freedom. Professor Coyney, shall we begin with you? Tell us
why you don’t think people are free.
COYNEY: Well, it’s obvious to those who understand the
science. We think we’re free because we’re ignorant of all the causes of our
actions that precede our apparent choices. Our so-called choices are forced on
us by the prior physical state of the universe, and if you rewound the cosmic
tape, as it were, we’d repeat exactly what nature forces us to do the first
time. We’d have no choice in the matter. So the freedom to do other than what
the laws of physics and the physical initial conditions compel us to do is the
impossible miracle of one natural being’s act of negating all of physical
reality. No one’s that powerful or transcendent. We’re stuck in nature, with no
immaterial spirit inside us, so we’re forced to do what the universe causes us
to do.
MODERATOR: Seems clear enough, Adam, no?
ADAM: No, I’m not free to destroy the universe, but I’m free
to control myself a little. That’s because I have a brain. A rock does whatever
the universe tells it to, because it can’t think about it and mull the options.
Its weight will force it down a hill because it can’t do anything about
gravity. But I can think about jumping even though gravity’s telling me to stay
put. Also, people thought hard about how to fly and they built airplanes, so
now we can go even further against that force of nature. Freedom comes from the
brain, because the brain controls the rest of the body. A rock has no brain, so
it’s not free.
COYNEY: No, no, no, Adam, you’re missing the point. You may
think you’re free when you learn how nature works and exploit that knowledge in
your behaviour, but your ability to learn is likewise the result of
evolutionary processes which derive ultimately from chemical and physical
regularities. The brain is blind to all of those prior causes, so it thinks the
only relevant causes of its actions are those it seems to control, namely the
mental ones such as its conscious thoughts and feelings. But mental states are
themselves forced upon us by our past and by the environment which is governed
by natural laws.
ADAM: I thought you said the lack of free will is obvious to
those who understand the science.
COYNEY: Yes, that’s exactly what I said.
ADAM: So why are you talking about natural laws?
COYNEY: When you were younger, Adam, didn’t you sit in a science classroom and hear about how scientists discovered the laws that govern the universe?
COYNEY: When you were younger, Adam, didn’t you sit in a science classroom and hear about how scientists discovered the laws that govern the universe?
ADAM: I did, but didn’t you once find yourself in an English
class where you might have learned how a metaphor can become outdated?