this post was submitted on 22 Sep 2023
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Nostr is a wildly different protocol from atprotocol and activitypub.
Activitypub is very much like email (SMTP) over http, pushing messages between servers. Atprotocol is instead using a model of a repository with profile and posts per user on federated servers along with aggregation servers (CDN-ish) and a pull model for retrieval. Nostr is a P2P protocol with "gossip nodes"
Yeah, I more I learn about this stuff I can't see the purpose of this new protocol versus the existing ones (not to even mention all the activitypub/fediverse spinoffs too).
Account portability for one thing, with accounts being defined by the DID and repository and not server name + path you can easily switch servers