One real neuron can need a 5-8 layer network to model, says Columbia prof
vishalmisra · x · 2026-10-04
Columbia's Vishal Misra contrasts real and artificial neurons: real neurons communicate via timed spikes, a single one may require a 5-8 layer network to model, and dendrites can compute XOR — while artificial neurons are just weighted sums plus thresholds. "Inspiration is not identity," pushing back on the claim that brains are literally neural networks.
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