Last summer I tried untangling the OStatus/pump.io/ActivityPub/ActivityStreams nest hoping to piece together a big picture mental image based mostly on what Wikipedia has to say, and found it mostly frustrating.
For anyone who's similarly curious or confused, LWN published a pretty great overview last month—their "Federation in social networks" article:
For anyone who's similarly curious or confused, LWN published a pretty great overview last month—their "Federation in social networks" article:
https://lwn.net/Articles/741218/