See my response to your sibling comment; clearly we still have a lot to learn, but there is already some understanding of the biological mechanisms of synaptic

See my response to your sibling comment; clearly we still have a lot to learn, but there is already some understanding of the biological mechanisms of synaptic plasticity (which I think is what the parent comment is referring to as "synaptic weights"). https://en.wikipedia.org/wiki/Synaptic_plasticity https://en.wikipedia.org/wiki/Synaptic_plasticity