I'd like to start giving people the option of commenting on shorter Cold Takes pieces (which I don't cross-post here or provide audio for). I'm going to use this post for that: I will generally leave a comment for each piece, and people can leave their comments as replies to that.
My favorite utopia is probably Scott Alexander‘s Archipelago of Civilized Communities, a world in which humans can form communities on any principles they desire on a new uninhabited island, while individuals have the freedom to leave at any time. The central government does very little except keeping peace, preventing some negative externalities and such. It doesn‘t sound too dull, I hope for a vast complexity of different communities and histories, the ability to travel between communitie, etc.
https://slatestarcodex.com/2014/06/07/archipelago-and-atomic-communitarianism/