• yeahiknow3@lemmy.dbzer0.com
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    11 days ago

    Biological neurons are actually more digital than artificial neural nets are.

    There are three types of computers.

    1. Digital
    2. Analog
    3. Quantum

    Digital means reducible to a Turing machine. Analog, which includes things like flowers and cats, means irreducible by definition. (Otherwise, they would be digital.)

    Brains are analog computers (maybe with some quantum components we don’t understand).

    Making a mathematical model of an analog computer is like taking a digital picture of a flower. That picture is not the same as the flower. It won’t work the same way. It will not produce nectar, for instance, or perform photosynthesis.

    Everything about how a neuron works is completely undigitizable. There’s integration at the axon hillock; there are gooey vesicles full of neurotransmitters whose expression is chemically mediated, dumped into a synaptic cleft of constantly variegated width and brownian motion to activate receptors whose binding affinity isn’t even consistent. The best we can do is build mathematical models that sort of predict what happens next on average.

    These crude neural maps are not themselves engaged in brain activity — the map is not the territory.

    Idk where you got the idea that neurons can be digitized, but someone lied to you.