Viola’s Reviews > Principles of Neural Design > Status Update

There is an answer for neural design: “As information rate rises,
costs rise disproportionately.” To transmit more information
by spikes requires a higher spike rate. Axon diameter rises linearly with
spike rate, but axon volume and energy consumption rise as the diameter
squared. Thus, the essence of neural design: “Send only information that is
needed, and send it as slowly as possible”.