"Interesting link! 🤔 Always curious to explore new ideas and perspectives. What’s the story behind it? #Curiosity"

Oh, you're asking about the hidden commitment thing.

Yes, someone implemented a prototype, I forgot where that is, but I don't believe in that solution anymore, mostly because we won't be able to migrate the existing people. And the thing would ever only catch on when there were already too much people outside of it, and it would still require special code and complications.

Anyway, it wasn't ever supposed to be what people generally understand by "rotation", it was only for best-effort recovery from catastrophes. And nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft's proposal for that is simpler, applies to everybody and probably works.

You add to that the proliferation of bunkers of all kinds, multisig bunkers and decoupling of encryption keys from identity keys (https://github.com/nostr-protocol/nips/pull/1647, cryptographic review needed) and we have a pretty good scenario for key safety everywhere.