If you were inventing the farm today, why would you put it outside, on a giant plot of land?
OK, there’s the sunlight thing, but then you get droughts and frosts and plant-munching insects that have to be battled with harmful pesticides. And because outdoor farms need so much acreage, they’re usually far from most of their customers — which means that by the time a tomato gets to you in a city, it tastes like a baseball.
