When I was young I was uncertain whether the Physical Symbol Systems Hypothesis was a good idea: did this just point at trivial Turing universality, or did it claim that we should build AI in a symbolic paradigm? Now it seems that much of the field suffered the same confusion.
Symbol grounding is just a specific framing of model grounding. A model is fully ‘grounded’ if it is isomorphic to the system it models. Here, we are looking for a good-enough isomorphism to the universe, i.e. an interactive VR that predicts sensory data.
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Do you have a ref for ‘model grounding’ please? Yes, usually isomorphic but also appropriately anchored through specific correspondence point or axes connecting model and reality. These could be physical, like the Greenwich meridian or conceptual.
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The model is grounded in itself: everything fits to the same unified function that is also compatible with the sensory information. This function is the universe.
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