The scientific truth is that two out of every three Americans are overweight, and one out of every three is obese. And it is true that fat accumulation can have deleterious effects on a person's health. Seen from this perspective, obesity is a problem. But when considered from a larger, evolutionary perspective — well, it might just be the next big thing in Natural Selection.

Nature is smarter than we are, and it's a good thing. Plenty of people have spent the last 25 years denying the scientific fact of climate change and global warming instead of making preparations for the inevitable rise in extreme weather conditions and resultant worldwide food shortages. They've buried their heads in the sand. Well, not really. They've buried their heads in their bags of chips and fast food, sitting still on their couches and packing on the pounds. But in so doing, they've been unwittingly preparing for the very disaster they deny. Nature has been fattening them in preparation for the famine to come. All that stored fat may one day mean the difference between dying of starvation or surviving until the next crop of heat-resistant supercorn has ripened.

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