@nolan I liked the note at the bottom about the p2p distributed social network everyone owns: the contacts list on your phone, because Signal exactly describes itself that way—see "Social software needs a social graph" section at https://signal.org/blog/private-contact-discovery/

There are so many possibilities to social media beyond Facebook's approach that we haven't explored… Mastodon and the broader ActivityPub ecosystem are quickly exploring that space, but alas, lock-in probably means that the best won't win…