Directly or indirectly connected isn't my point. I was referring to the large amount of electrical activity in the brain and we don't really understand what it

Directly or indirectly connected isn't my point. I was referring to the large amount of electrical activity in the brain and we don't really understand what it actually encodes. Unless we reverse engineer it (which is insanely hard), it's hard to know what's "running" on the hardware. Or if we can perfectly replicate the brain using our model of deep learning. I'm a skeptic but that would prove it too.