Again...where would the nearest grocery be??? Mall? Where'd the offices be? Did you think all 6 billion humans would be satisfied to be farmers? How'd they get to another state via mass transit - can you build a train to fit a mere million (out of 6 billion) people at the same time? Or do you think everyone can chant "wingardium leviosa" and float their way wherever they want to go?
Like I said, square footage does not lead to feasibility.
Like I said, square footage does not lead to feasibility.