not to have a point of view, the method not of closure and perspective but of the open “field” and the suspended judgment. Such is now the only viable method under electric conditions of simultaneous information movement and total human interdependence. Whitehead does not elaborate on the great nineteenth century discovery of the method of invention. But it is, quite simply, the technique of beginning at the end of any operation whatever, and of working backwards from that point to the beginning. It is the method inherent in the Gutenberg technique of homogeneous segmentation, but not until the nineteenth century was the method extended from production to consumption. Planned production means that the total process must be worked out in exact stages, backwards, like a detective story. In the first great age of mass production of