"I had my idea for the story, and I loved my idea. And I even got to write—I had read the script for The Matrix and there were a couple of things that hadn't quite made sense for me, so I sort of tried to change them a bit: instead of human beings being used as batteries, for example, I had them used for information processing, brains hung out in parallel which seemed, somehow, to make a little more sense.”.
Gaiman says he changed elements of the story to fit his own conception of it. Directly admitting that he made the change from batteries too processors. Not a producer, not the Wachowskis, Neil Gaiman. The Wachowski’s always intended for humans to be used as batteries.