Requirements For Symbol Grounding
Another symbol system is natural language (Fodor 1975). On paper, or in a computer, language too is just a formal symbol system, manipulable by rules based on the arbitrary shapes of words. But in the brain, meaningless strings of squiggles become meaningful thoughts. Harnad has suggested viz. pointed at two properties that might be required to make this difference.
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“Mysticism is the mistake of an accidental and individual symbol for an universal one.”
—Ralph Waldo Emerson (1803–1882)