@eblu @quillmatiq @jack @laurenshof @jsit @bsky.app The major difference between AT Proto and ActivityPub is that in ActivityPub, nodes communicate directly with each other, without relying on a third party. Mastodon (as an organization) could disappear along with mastodon.social overnight, and the fediverse would continue to function flawlessly (although you'd stop getting cool new software updates from us, until someone else stepped in).