Could quantum mechanics save the soul? In the light of 20th century physics, is free will plausible? Such as been the hope of some philosophers, scientists
Could quantum mechanics save the soul? In the light of 20th century physics, is free will plausible?
Such as been the hope of some philosophers, scientists (and pretenders to those titles) – but neuroscientist Peter Clarke argues that it’s just not happening, in an interesting new paper: Neuroscience, quantum indeterminism and the Cartesian soul
Clarke first outlines the dualism of Rene Descartes, who famously believed in an immaterial human soul separate from the brain, and responsible for rational thought. But this implied that an immaterial soul could break the laws of physics, and affect some physical processes in the brain, in order to control our actions. Even in the 17th century, this was regarded as a bit much:
Princess Elizabeth of Bohemia (oldest daughter of King James VI), wrote: “…it would be easier for me to concede matter and extension to the soul, than to concede the capacity to move a body and to be moved by it to an immaterial thing.”
But the 20th century gave new life to dualism. Quantum theory taught that physics is non-deterministic on the smallest scales; most famously, Heisenberg’s uncertainty principle states that we can’t know the exact properties of any particle for sure – only the probability of finding a certain kind of particle in a certain place.