Tsvi B. T. (TSVIBT)

Subheading.

Problems with all electrical brain interface approaches.

The butcher number.

Current electrodes kill more neurons than they record.

That doesn't scale safely to millions of connections.

Bad feedback.

Neural synapses are not strictly feed-forward.

There is often reciprocal signaling and regulation.

Electrodes wouldn't communicate that sort of feedback, which might be important for learning.

Subheading.

Massive cerebral prosthetic connectivity.

Source.

Link in text half of the human brain is white matter, that is neuronal axons with fatty sheaths around them to make them transmit signals faster.

White matter is roughly one-tenth the volume of rodent brains, but roughly one-half the volume of human brains.

Wiring is expensive and gets minimized.

Seath Principles of Neural Design by Sterling and Laughlin.

All these long-range axons are a huge metabolic expense.

That means fast, long-range, high bandwidth, so to speak, there are many different points involved, communication is important to cognitive capabilities.

See here.

A better researched comparison would be helpful.