The rapidity with which the land recovers, and when I say land I'm talking of the whole soil, plant, animal complex as being the land, the land and everything that's on it. The ability of the land to recover from adversity, whether it's flood, fire, drought, whatever it is, is in direct proportion to the amount of biological capital that's built up in that land, the amount of biodiversity in that land. That's all in the world biological capital is, is biodiversity plus the long-term effects of having biodiversity.