A Thought Experiment: Where Are You?Where are you? Most people say that they are behind the eyes. Blind people often feel themselves at their finger tips when reading Braille, or at the handle of their cane when walking. Sometimes people feel themselves at the edge of a car as they almost have an accident with a passing vehicle. But where are you? Plausibly, scientifically, you reside in your central nervous system, your brain. Electrodes attached to its different areas can stimulate various memories, feelings, and movements.The question remains, though. As part of a thought experiment originally proposed by Daniel Dennett, assume that your brain has been removed from your skull and placed in a vat of chemicals that nurture it. Your body has total, unimpaired ability to move about, although minus your brain. Instead, in your cranium is a transmitter that sends sights, sounds, touches, and scents, back to the brain. While your body roams freely, your brain remains in the vat, experiencing whatever the body encounters.Where would you locate yourself? Most people would say they would believe themselves not in the vat but wherever their body goes. They would still feel that they lived somewhere behind the eyes. Only a transmitter is located there.* So where, then, is the self, this seemingly basic element that everybody senses as present, and discusses as if it is real? What about all the words referring to it--I, you, him, or her? Apparently, because the self cannot be located, they belong to the metaphysics of grammar. (See The Metaphysics of Grammar, 17 January 2004.)
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