I still live in a World where mass-media is a thing because I watch recently made TV shows, occasionally recent films (aka movies), and listen to mainstream music on the radio.

I wonder how it's going to play out because generations up to now have shared a relatively small cadre of media offerings in semi-rigid genres; that shared experience has in some ways - at least in the 20th Century - underpinned societal culture.

Shared interest in YouTube stars, amongst many other things, still keeps the thread of share cultural experience in society; but what direction are we going?

If I have a billion different media offerings I can consume the chances of meeting people and having a shared cultural experience we can link over get smaller. Whither nostalgia?

TL;DR, Nostalgia won't be what it used to be.