The chips you describe, are they responding to brain activity, or are they connected to something outside it, and if so, is that remnant muscle tissue or remnant (peripheral) neural tissue? And if so, do you agree that if that's missing, this is an unprecedented (possible) solution?
Both techniques have been used! Some are connected to the top of the spinal cord where as others are on different areas of the brain. Both techniques work and it's not clear which is superior right now.
