The Vertebra can be a model of wiring for Robots (small/narrow space)

When you build slim and parts-denced robots, wiring shall be smart and slick.

Both of them are nearly the same topology, but packet routing(switching hub) differs from aggregation(by proxy/broker).

Loose coupling (by proxy/broker) may give you freedom to select implementations from wide range of choices.
And model shall be clean. (Minimize specification)

Augmented Brain

 Brain of Homo Sapiense : Sensori-Motor system

Sensori-Motor system is going to be realized by IoT.
SNS is external brain; (augemented)

Thus, SNS + IoT may cause Augmented Brain!