Comment by penteract

If you account for the fact that biological neurons operate at a much lower frequency than silicon processors, then the raw performance gets much closer. From what I can find, neuron membrane time constant is around 10ms [1], meaning 10 billion neurons could have 1 trillion activations per second, which is in the realm of modern hardware.

People mentioned in [2] have done the calculations from a more informed position than I have, and reach numbers like 10^17 FLOPS when doing a calculation that resembles this one.

[1] https://spectrum.ieee.org/fast-efficient-neural-networks-cop...

[2] https://aiimpacts.org/brain-performance-in-flops/