Can they all be fed?

Some people wonder whether we can feed the projected population of planet earth. The answer to that question depends largely on political, social, economic, and legal factors. Clearly, under capitalism, with its legal dogma regarding private property, economic dogma regarding distribution of wealth based on an invisible hand, social dogma regarding upper and lower classes based on income and education, and political dogma regarding democracy - in other words, what we have now – the answer is No. Even our current global population cannot be fed under capitalism. Nor can many, many species of fauna and flora be fed. However, I don't see any reason why human population size would be an insurmountable obstacle for society – or why so many species of fauna and flora should die out – under PROUT.