There can be a lot of redundancy within neurons as well. Just because you find causally relevant chemical densities that predict neuron states doesn't mean that there aren't other chemical densities that also predict those same states.
Is there any evidece of such large redundancy at the level of biochemical information storage? I'm not aware of it, and I can't see a good reason for such thing to have been evolved.
I'm not a neuroscientist, but AFAIK, I'm not sure that talking about chemical densities is the most appropriate way to frame the discourse here: synapses are small enough that the discrete nature of protein complexes and structures becomes relevant. While disrupting a single molecule wouldn't significantly affect the neuron state, a process that causes generalized misallignmen...
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