>Putting all kinds of stuff into a skull won't be easy.
Yeah, I think that's mostly a misguided idea. Trying to bio-mimic absolutely everything that's been so elegantly designed into humans is, well, humanly
Better to keep most of the componentry safely protected inside the torso, etc, IMO.
>perception and cognition can't be disconnected from each other.
Yeah, that's probably correct. Certainly it seems to ring true with some of the positions Carver Mead suggests for the field of Neuromorphic Computing he basically originated. Much of what we think of as 'cognition' is in fact neurological at a basic level instead of a higher level, and the perceptions are pushed as far out towards the extremity of sensory perception as possible in most the the higher life form's biological systems.