Can human brain outperform AI in the end? Apparently conjoined twins "share thoughts", so advanced enough biology would allow creating a structure connecting several brains:
https://www.youtube.com/watch?v=N1Mac4FeKXgWounder how such architecture will look like to be efficient. Probably mimic existing networks topologies.
At the same time nothing precludes DAC interface, so instead of a siamese twin one, can have something like LLM implant. But I guess analog-digital conversion leads to efficient loss, but allow communicating over larger distances.
Human brain also uses large sized neuron cells, compared to insects, so miniaturization would boost the speed a few times by pruning the cells content.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6666151/>A typical neuron in the head of Drosophila melanogaster has a soma diameter of 2–6 μm, compared with 10–30 μm for a pyramidal cell in rodent cortex (Larkman and Mason, 1990).