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A deep analysis of the technical and political challenges surrounding social media interoperability and content schema standardisation. Traces the history of standards efforts from RSS/Atom and Dublin Core through to ActivityPub and AT Protocol, examining what a minimal interoperable content schema would require. Covers foundational metadata needs, content type classification, moderation metadata challenges, and extensibility mechanisms. Evaluates three governance models (open standards bodies like W3C/IETF, consortium-based, and vendor-led) with their respective trade-offs. Concludes with six practical steps toward convergence, including building on Activity Streams 2.0, standardising moderation metadata under EU DSA pressure, and adopting formal extension mechanisms. Frames interoperability as both a technical and political challenge that will determine whether the social web becomes more open or more fragmented.

Interoperability or Isolation

Exploring the intersections of artificial intelligence, decentralised cognition, posthuman ethics, society and culture.