ActivityPub uses ActivityStreams, which uses JSON-LD, which combines the best of both worlds

And by that I mean it makes json people angry and it makes linked data people angry

ActivityPub, which is abbreviated AT ("ATProto")

ActivityPub, which is abbreviated AP (AtProto)

ActivityPub is just decentralized Bluesky

ActivityPub is decentralized, but wouldn't it be better if it were distributed

ActivityPub is whatever the queen of the fediverse says, but royalty isn't real, and now we're facing a constitutional crisis

ActivityPub is that spec which @cwebber put all the emacs and lisp jokes in and nobody even noticed

ActivityPub? You mean the Mastodon network?!

Email: it's like ActivityPub

ActivityPub is that protocol where you can send anything you want over it, as long as the thing you send is a Note (so Mastodon can read it)

ActivityPub? Don't you mean OStatus TNG

ActivityPub? Don't you mean the Pump API

ActivityPub? Don't you mean ActivityPump?

ActivityPub? Don't you mean XMPP XEP-0060

ActivityPub is just social networks but for gays

ActivityPub is the "transgender yapping protocol"

ActivityPub is just centralized Bluesky

ActivityPub is when you have a hard drive, and you want to fill it up, but not fill it up as much as a full atproto relay, so you fill it up just most of the way

ActivityPub is you. It was you all along. It was all of us

ActivityPub is when you send HTTP requests to actors' inboxes, but then you get confused letters back from the actors because they don't want to read computer things they just want to star in shakespeares