it reminds me of scientists' calculations about the growing population of England in the 1800's and the horsepower that'd be required to feed them - one scientist theorized that by the next century Englishmen would be up to their eyeballs in horse manure...how did that work for them?
Would have made the country more fertile ?, and of course, an English draft horse , produced 29 Horsepower as we measure it!
Haha, that would be some fertile soil!