Back when I was a boy growing up in a small coastal town in the Pacific Northwest, my sense that everything around me was inexhaustible was not simply the result of youthful naïvety, it was acquired from and reinforced by all those around me. The salmon in the river were beyond number. The forests stretched for as far as I could see from the highest hill in the town. Everything upon which I, my parents, and everyone we knew relied seemed truly inexhaustible.