[Anitius Severinus Boethius]

90% of Americans live in big cities.

Bull crap.

20% of the population live in Urban areas (about 60 million) and another 50% live in Suburban areas (about 150 million).

[Cheburashka]

Oh, suburbanites can grow their own food? All the food they need to survive? Not likely! They're just as tied to the food distribution network as anybody in a highrise or an apartment building is. All will get very hungry very quickly. When you figure it on that basis, that 90% figure may be high.

Once people start staving, the population will drop quickly. I hope I'm wrong, I don't want to be right. I'd rather not find out whether I'm right or not.