This caution from Alain De Botton caught my eye:

The past decade has seen an unparalleled assault on our capacity to fix our minds steadily on anything. To sit still and think, without succumbing to an anxious reach for a machine, has become almost impossible.

We are made to feel that at any point, somewhere on the globe, something may occur to sweep away old certainties—something that, if we failed to learn about it instantaneously, could leave us wholly unable to comprehend ourselves or our fellows. We are continuously challenged to discover new works of culture—and, in the process, we don’t allow any one of them to assume a weight in our minds.

This seems a potential criticism of scanning– or at the very least, a caution that the act always needs to be grounded firmly in a search for something, or linked in some way to a practice that disciplines and contextualizes it. Otherwise it just becomes distraction.