@fedward @doriane What I'd consider the synthesis theory:
Bluesky started as an attempt by Jack Dorsey to neutralize the Fediverse as a threat to Twitter.
Then it got handed off to some protocol designers who were earnestly thinking about free, decentralized networks, but sketching within Dorsey's lines.
Then it got handed off to this company of ex-Twitter engineers, who don't necessarily care about (and haven't been trying to preserve—features like DMs, bookmarks go around it) centralization