The point is that radio, then television, then internet, then smartphones, then AI, each one of which is as impactful on the world as the examples you gave, emerged within a couple hundred years ago years, rather than a couple thousand (and the last few within a couple decades).
Breaking “social” up into networking (connecting to my friends: MySpace, old Facebook) and media (social-graph recommended content: TikTok, current Facebook mostly)… the former might stick around. But the latter seems pretty vulnerable to learning model generated content, right? Social media might not exist in a couple decades or might be seen as sort of primitive stepping-stone on the path to algorithmically-generated entertainment media.
Which will probably be quite bad, but then, influencer-generated entertainment media was quite bad, so maybe we won’t be too much worse off.
