I had in mind more of a societal shift that makes FB/IG/etc. deeply uncool. Maybe living a super secretive life, never sharing anything, becomes the counterculture of the 2040s.
I just can’t imagine young people (main drivers of social media) are going to be happy with circa 2005 social media forever.
People love to speculate about "Facebook Killers", but what is there to even kill? Facebook doesn't offer people a useful service. It's just familiar and ubiquitous, so it exists in perpetuity.
> The Facebook Killer will thus be something completely different, not merely a better or more ethical version of contemporary social media.
Then it's not a "Facebook Killer", is it? It would just be another social media platform added to the pile. Just another Twitter, Snapchat, TicTok, etc.