The only thing that shocks me about this reply is the first half of your first sentence. Well, and your "return from footnote" link, which is amazing :)
I can't think of a conceptual tag that has done more work in my brain than "audience capture". It's like half of modernity snaps into focus.
Combine that with whatever you would call the fracture where we can inhabit separate self-soothing realities by curating our assorted feeds, and you have the last 7 years or so, and probably the next however-many years before humans extinguish themselves.