> This assumes that all the processing that human brain does is by sending signals across the neurons. Which we really don't know. Right? It doesn't need to as

> This assumes that all the processing that human brain does is by sending signals across the neurons. Which we really don't know. Right? It doesn't need to assume all, just some non-trivial amount. I don't know the ratio of inter-neuron to intra-neuron processing in brains, or if such a metric even exists. But it seems theoretically possible at least to measure the computing power of a neuron in isolation, and see if artificial analogs exist (or could be built) that exceed that by some margin. Ultimately we're just looking for avenues of evidence to explore.