Philosophia 48 (2):673-707 (2019)

J. Brian Pitts
Cambridge University
Since Leibniz's time, Cartesian mental causation has been criticized for violating the conservation of energy and momentum. Many dualist responses clearly fail. But conservation laws have important neglected features generally undermining the objection. Conservation is _local_, holding first not for the universe, but for everywhere separately. The energy in any volume changes only due to what flows through the boundaries. Constant total energy holds if the global summing-up of local conservation laws converges; it probably doesn't in reality. Energy conservation holds if there is symmetry, the sameness of the laws over time. Thus, if there are time-places where symmetries fail due to nonphysical influence, conservation laws fail there and then, while holding elsewhere, such as refrigerators and stars. Noether's converse first theorem shows that conservation laws imply symmetries. Thus conservation trivially nearly entails the causal closure of the physical. But expecting conservation to hold in the brain simply assumes the falsehood of Cartesianism. Hence Leibniz's objection begs the question. Empirical neuroscience is another matter. So is Einstein's General Relativity: far from providing a loophole, General Relativity makes mental causation _harder_.
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DOI 10.1007/s11406-019-00102-7
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References found in this work BETA

Physicalism, or Something Near Enough.Jaegwon Kim - 2005 - Princeton University Press.
Consciousness Explained.Daniel C. Dennett - 1993 - Philosophy and Phenomenological Research 53 (4):905-910.

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Dualism.Howard Robinson - 2008 - Stanford Encyclopedia of Philosophy.

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