This article seems to presume that you'd grow the one heavy crop which can be stored in a silo for years, rather than any of the many crops which go off if they

This article seems to presume that you'd grow the one heavy crop which can be stored in a silo for years, rather than any of the many crops which go off if they don't get to your table within days and require expensive just in time logistics. It also presumes that instead of putting all of your wind farms and solar panels somewhere outside of the city and connecting them with this new technology called cables that that you'd put them all on top of your skyscraper.