It is more likely to be akin to the development described in Stephenson's Anathem where textual writing eventually is displaced by something called kinograms wh

It is more likely to be akin to the development described in Stephenson's Anathem where textual writing eventually is displaced by something called kinograms which seem to resemble animated emoji. Only scholars locked in in walled institutions of learning from which they rarely venture still read script, outside those walls it is only in some religious orders where textual writing is still practised. Kinograms seem to be mostly used to convey commercial and practical information like user manuals, not for storytelling which is done through some form of video. In a way this is 'post-literate' since it adds an extra dimension to illiteracy: relatively complex information is still conveyed by standardised symbolic means, just not through text. Having said all this it does seem like society is dumbing down, partly due to the way information is distributed. Having said that I think this sentiment was common in previous generations as well.