When you were a child a tree fell in the woods. Walking to school you noticed something different in the familiar pattern of the forest and you stopped to investigate. You examined the flat web of roots. they were covered with thin black hairs that clung to tiny bits of yellow sandy dirt. The roots smelt dark. You got up on the trunk and walked its length making believe it was still vertical. And you thought, "nobody has ever done this. Nobody has ever stepped here before."