But there's another side to this: a feed composed of things from people is *fungible*. Theoretically, you could uproot that feed from one platform and settle it in another one - if everyone you follow on Twitter set up an account on Mastodon, you could use a tool like #Movetodon to refollow them there and get the same feed:
A feed that is controlled by a company using secret algorithms is much harder for a rival to replicate.
12/
That's why #Spotify is so hellbent on getting you to listen to #playlists, not albums. Your favorite albums are the same everywhere, but playlists are integrated into services.
But there's another side to this playlistification of feeds: playlists and other recommendation algorithms are #chokepoints: they are a way to durably interpose a company between a creator and their audience. Where you have chokepoints, you get #ChokepointCapitalism:
https://chokepointcapitalism.com/
13/