““Carrying their flints and torches, Native Americans were living in balance with Nature—but they had their thumbs on the scale. Shaped for their comfort and convenience, the American landscape had come to fit their lives like comfortable clothing. It was a highly successful and stable system, if “stable” is the appropriate word for a regime that involves routinely enshrouding miles of countryside in smoke and ash. And it was a system that Indians were abandoning in ever-rising numbers at the time when Europeans came.””