I don't play it as brain-based. But given that it's pure conjecture, there is no solid answer.
You can play it how you like, I can play it how I like. Frankly I find the idea of it actually being a neural net slightly stupid. Especially since any manner of awful things could be done to somebody's brain. If you can DDOS as server, imagine what you can do to somebody's head if they're surfing the web with their mind.