It's from Matrix Reloaded, when the architect explains past failures of the matrix and that they only succeeded when they figured out that they had to offer a choice, even if that choice was subconscious. That nearly everyone accepted the matrix, and the few that did not escaped to Zion. That's the whole point of Neo, to manage the outliers and keep the system going.
At least that's my recollection. I've watched the matrix a few times :)
At least that's my recollection. I've watched the matrix a few times :)