I think of the complex histories that landscapes have, and how easy it is to put easier, safer histories in their place. The fields in Cambridge, farmed organically, are teeming with life. These are not. The big animals are here: the deer, the foxes, the rabbits; the fields look the same, and the trees, too, but this land is empty. There are few plants other than crops, and few bees, or butterflies, for the soil sprayed with chemicals that kill.