tptacek understands this problem as he is/was in Chicago, which has had issues with "food deserts" where poor regions of the city do not have grocery stores wit

tptacek understands this problem as he is/was in Chicago, which has had issues with "food deserts" where poor regions of the city do not have grocery stores within a reasonable commute. And the grocery stores in those poor areas are often overpriced for exploitive reasons. So tptacek is correct that a farm inside a grocery store does not solve grocery affordability for the poor, because the problem is due to transportation/access, not the cost of the goods. The bridge between these two views would maybe be if there was a solution of vertical farming that used little real estate and was able to set up a vertical farm in a poor area and had minimal real estate footprint/low rent costs. Paper on Food Deserts in Chicago (or just google "food deserts chicago"): http://www.usccr.gov/pubs/IL-FoodDeserts-2011.pdf http://www.usccr.gov/pubs/IL-FoodDeserts-2011.pdf