On Remembering a Post-Digital Future

We have always been post-digital or at least I cannot recall a time when art wasn’t?  To claim this is surely ridiculous, as the post condition demands the prior instantiation of a digital state that purportedly did not begin until the mid 1970s. Yet if, for a moment, we entertain the idea that art has always been post-digital, in what way might this make sense? How might this enable a re-reading of pre-digital practices and inform our understanding of future post-digital practice?