In 1996, in a remarkably prescient letter to Jorge Luis Borges, penned a decade after his death, Susan Sontag hypothesised a possible future of reading: ‘Soon, we are told, we will call up on ‘bookscreens’ any ‘text’ on demand, and will be able to change its appearance, ask questions of it, ‘interact’ with it. When books become “texts” that we “interact” with according to criteria of utility, the written word will have become simply another aspect of our advertising-driven televisual reality.’