[Illuminated One]

No seriously, you can't define a "perfect world" as one with only unlimited grass growth etc.

If you are going at the Gnostic/Theodizee (how can god exist&be good&be allmighty when there is suffering?), which the Matrix is imo about (I mean is there a difference if reality is governed by lines of code or freaky physical laws? The core seems to be the feeling that the world is run by a unconcerned or even malevolent power)

The perfect world is where no suffering exists. So there are no predators, diseases or whatever that might cause a sheep to feel bad, probably it wouldn't even need grass so sheep can't get hungry. (*)
You can argue that such a world can not exist since suffering is a necessity of life and this is the best world possible. But I seriously doubt that this world would fall apart if it was only slightly better (like for example I hadn't stubbed my toe just now). Anyone who wants to solve the Theodizee should prove that this world couldn't exist were it not for my pain.


(*) This world has to be designed from the goal of course. Every problem that might there be with unlimited sheep or whatever has to be treated as a problem already solved by the architect.
It's just an hypothetical idea after all