"perfect world"
"Have you ever stood and stared at it, marveled at it's beauty, it's genius? Billions of people just living out their lives, oblivious. Did you know that the first Matrix was designed to be a perfect human world. Where none suffered. Where everyone would be happy. It was a disaster. No one would accept the program. Entire crops were lost. Some believed that we lacked the programming language to describe your perfect world. But I believe that as a species, human beings define their reality through misery and suffering. The perfect world was a dream that your primitive cerebrum kept trying to wake up from.
Which is why the Matrix was redesigned to this, the peak of your civilization."
--"Agent Smith" from "The Matrix"
The movie's science had a gaping flaw--the idea that human beings are net energy producers. It would have been so easy to write around it by stipulating that the Matrix used their brains as computing units, not their bodies for power.