The artificial intelligence pioneer Marvin Minsky once defined free will as "internal forces I do not understand."26 People intuitively believe in free will, not just because we have this terrible human need for agency but also because most people know next to nothing about those internal forces. And even the neuroscientist on the witness stand can't accurately predict which individual with extensive frontal damage will become the serial murderer, because science as a whole still knows about only a handful of those internal forces. Shattered bone → inflammation → constricted movement is easy. Neurotransmitters + hormones + childhood + ____ + ____ + isn't.
( Robert M. Sapolsky )
[ Behave: The Biology of Humans ]
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