What's funny, is that I used to tell my Marine buddies and family why I thought we "won" the cold war: Most of Russia is located well north of most of America (don't count Alaska please, so few people live there) that they had to spend so much effort just to feed their people, while we had such a "bread-basket". Sure there were other factors, but I contend that if one nation has to spend more energy just to survive, another - otherwise equal - nation will be able to advance faster in just about every way.
Neat article.