"The growth of the American food industry will always bump up against this troublesome biological fact:  Try as we might, each of us can only eat about fifteen hundred pounds of food a year.  Unlike many other products - CDs, say, or shoes - there's a natural limit to how much food we each can consume without exploding.  What this means for the food industry is that its natural rate of growth is somewhere around 1 percent per year - 1 percent being the annual growth rate of American population.  The problem is that [the industry] won't tolerate such an anemic rate of growth."