What occurred to me reading this is that one of the biggest costs to urban farming is the real estate. But with self-driving car-shares on the horizon and poten

What occurred to me reading this is that one of the biggest costs to urban farming is the real estate. But with self-driving car-shares on the horizon and potentially much lower needs for parking structures, perhaps this might be a good way to repurpose some old parking garages. Lots of sq.ft., structural support for heavy inventory, open to air and sun, etc. Might work.