Rice Is the Ideal Staple Grain

Rice is the ideal staple grain, or at least it was originally available on the apro urasian super continent. Rice elds weigh more food per acreporunit of farm land than any other cereal crop. They had rice in africa too, but not enough water for flooded f production,. except in a few places. East asia is much more hospitable to large numbers of people living on top of each other, in part because it is hospitable to rice. Potatoes also yield a ton of calories per acre, and are singly rich in micro nutrients as well - that's a topic for another day.