Over the course of the [Frankfurt Book] Fair various players offered phrases such as “a digital manifestation of what was a book” and “long-form narrative delivered digitally” and “story-telling” and “immersive text-only experiences,” and it is clear that the reason for such a profusion of vague terms is not obtuseness but a recognition that we’re not replacing one static-priced unit (pBook) with another static-priced unit (eBook), but finding that our single massive unidirectional pBook supply chain is now just one component of a tremendously variegated set of producer-consumer relationships…

— Richard Nash