cyberdad wrote:
Actually the human brain isn't that efficient for energy production.
Correct. And then there would be the problem of simply keeping all those people alive in that state.
It was originally scripted as a massive brain based computer for the machines, but at the time the internet was much younger and people less aware of computer networking so the film makers didn't want to go that route.
Now we know that Neo was able to project into the Matrix in a WiFi like way. That's how he was trapped by the Merovingian. So I see no reason this couldn't become a complete download.