Suppose that you are a farmer operating a local farm. You plant fifty seeds and watch them grow into stalks of wheat with plump wheat berries. The next year, you one hundred seeds on your plot of land and you harvest double the amount of wheat. You deduce, that based on this rate, you should be able provide all the world's supply of wheat from your little plot of land by planting more and more seeds, thereby ending world hunger as we know it. However, this is clearly not possible! Why not? Explain your answer using production concepts from economics.