Long ago ~1982 I presented a paper (the closing presentation at the
1st NN conference in San Diego) showing that if you chopped a human
brain up into many processors that communicated over a single bus,
that the communications rate would be only ~10^9 brief
messages/second. Of course this was inconceivably fast for that time,
but probably doable now.
We are not even close to that today, and probably never will be due to
physics. Any communication system that large is inherently parallel.
It depends on how you interpret the "single bus" bit and how large the
message is, but PCI Express 3.0 and fiber optics can easily do a hundred
Gbit/s. (Not that I agree with the 10^9 message/s estimate, I think it
underestimated the bandwidth in white matter by 3 to 4 orders of magnitude)
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AGI
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