Thommy on Nostr: this is not something that can simply be understood by looking at specs. You have to ...

this is not something that can simply be understood by looking at specs. You have to think about the game theory of it. There's nothing *technologically* stopping every last user on Facebook from leaving yet they don't. If one server gets large enough market share, they could simply turn off federation if that suits them. Insert concerns people had about how Threads might have harmed the fediverse (which I personally thought were overblown, but not preposterous).