9% percent face the same problem. They need only 0.9% to feed them. So they leave 8.1% alone and make for themselves. But then only 0.09% is needed to produce a

9% percent face the same problem. They need only 0.9% to feed them. So they leave 8.1% alone and make for themselves. But then only 0.09% is needed to produce all the stuff. Etc.