Quick and short-lived, that is how we know today’s media. An application like Snapchat even responds to this: now you see the picture, now it’s gone. The contrast with printed books could not be greater. But is that really the case?

Digital or paper: what remains and what disappears is often a coincidence. Holding on to books is a fairly recent phenomenon. Much, but not all early printed matter has been preserved in heritage collections.

At the same time, information on the internet seems ineffaceable. The digital universe is growing exponentially. But who determines what the cloud remembers? And what if you would rather not leave a trail?