There may be a bit of that—watching things so that you can talk about them with other people. But, when I've done that (in the last 5 years or so), it's usually because there are one or two people I know who want to talk about a show. It's never been show that everyone I knew was watching.
The same is true of books, only moreso, since I only know a few other people who regularly read for pleasure, and with whom I might share a reading experience.
So it may be hyperbolic to say that no two people will be reading the same books, I think it's directionally true that we'll continue getting more and more narrowcasted, personalized content over time, thanks to AI, and devoting a larger portion of our time watching it, compared to content aimed at a wider audience.
The same is true of books, only moreso, since I only know a few other people who regularly read for pleasure, and with whom I might share a reading experience.
So it may be hyperbolic to say that no two people will be reading the same books, I think it's directionally true that we'll continue getting more and more narrowcasted, personalized content over time, thanks to AI, and devoting a larger portion of our time watching it, compared to content aimed at a wider audience.