“It is as if we have forgotten that a product is an object moving through space, fighting gravity, air resistance and other forces of nature. Companies, though, are only too aware of it. While we choose and buy our purchases with mere inch-wide movements of our thumbs, they are busy rearranging the physical world so that our deliveries pelt towards us in ever-quicker time. The frictionless appearance of a box on the doorstep is such a seductive notion. We have come to rely on it in such a brief period that we have not been able to grapple fully with the scale or the meaning of home delivery.”