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essentialsaltes -> RE: Will science ever prove the existence of the soul? (7/14/2008 2:16:11 PM)
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quote:
ORIGINAL: EStan I know many (if not most) of us who are members here at Christianity.com absolutely believe in the existence of the soul, the "essence" of what we are. But do you think the technology will ever be developed that will prove beyond a shadow of a doubt that each of us is in fact made up of a body and a soul or spirit? It depends a lot on what the soul is and does (assuming it is at all) I believe it's standard to suppose that the soul is immaterial, so that removes a lot of avenues of research. So what does the soul do? Does the soul make decisions? When you stick money in a vending machine and are then faced with a selection of 10 candybars, is it your soul that tells your hand which button to push? If so, we know a great deal about the science of how messages from the brain activate the motor muscles of the body to produce action. So this would require that the soul can wiggle our brains in some way to make things happen. Descartes thought that the pineal gland was the connection between brain and soul. He was (almost certainly) wrong about this, but somehow we would need some sort of connection between the soul and the brain. In principle, we could study the interactions of the cells in a certain area of the brain and determine whether the activity of the neurons were due entirely to established laws of how neurons fire and inhibit and stimulate each other. If a soul of this type existed, we would see neurons firing 'for no reason' or 'with no material cause'. So this might be a way of establishing the existence of a soul. Even if those tests determined nothing, all is not lost for the soul. Even if the entire activity of the body was determined by physical forces and interactions, it could still be the case that one had a soul that was 'synchronized' with its body. This is sort of like what Leibniz proposed with his monads and preestablished harmony: "[T]he soul follows its own [final causal] laws, and the body also its own [efficient causal] laws. They are fitted to each other in virtue of the pre-established harmony between all substances." This harmony was presumably ordained by God. If souls were like this, there would be no way to determine whether they exist or not - the data would be exactly the same as if our actions are the result of material interactions only.
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