What billionaires do with the public square matters to our future.
If there's a Twitter exodus, the public square will survive it, just as well as we survived the Myspace and Digg and Tumblr and Friendster and Livejournal exodii. Hopefully most communities will relocate to sites with healthier engagement models.
That's a pretty twitter-centric view of things
See this https://www.statista.com/statistics/272014/global-social-net...
I have no clue where the hell people get this "public square" analogy from because the numbers don't back it