As non-scientists, most gardeners deprived of atomic-ray spectrometers, a battery of reagents, and a few million research dollars must look to signs … - Bill Mollison

You can hit a nail on the head, or cause a machine to do so, and get a fairly predictable result. Hit a dog on the head, and it will either dodge, bite back, or die, but it will never again react in the same way. We can predict only those things we set up to be predictable, not what we encounter in the real world of living and reactive processes.

Of all the elements of critical importance to plants, phosophorus is the least commonly found, and sources are rarely available locally. Of all the phosphatic fertilisers used, Europe and North America consume 75% (and get least return from this input because of overuse, over-irrigation, and poor soil economy). If we really wanted to reduce world famine, the redirection of these surplus phosphates to the poor soils of Africa and India (or any other food-deficient area) would do it. Forget about miracle plants; we need global ethics for all such essential soil resources. As long as we clear-cultivate, most of this essential and rare resource will end up in the sea.

It is no mere coincidence that there is both an historic and a present relationship between community (people assisting each other) and a poverty of power due to financial recession.