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To illustrate, within a neo-cortical assembly stellate cells relay axonal processes to proximal pyramidal cells. In human biology a typical stellate cell receives in the range of 20,000 input signals, a pyramidal cell receives in excess of 100,000 synaptic inputs. Doing the math, commutativity facilitates storage densities in excess of 2 Billion associative patterns prior to saturation (degradation of learning rate and recall accuracy). In real terms, this storage density equates to one memory trace for every second across an 80 year lifespan. |