Posts can carry capsules.
A post can be a capsule-backed object instead of a flat blob, with privacy and visibility enforced by platform rules.
Exchange
Social posts as platform objects.
Exchange is the social network surface for profiles, feeds, posts, capsules, Collabs, and Tracks.
Two graph rules.
Collabs are mutual connections. Tracks are asymmetric follows. The docs keep these concepts separate.
Worker-authorized reads.
Social reads and writes are designed to flow through platform authorization and Command Bus paths.
Pre-launch boundary
Exchange copy describes the platform model and avoids audience or validation claims before launch.
D6 recording slotPublish a post, reload, react, comment, and show badge behavior.