Browser‑scale AI Community Notes

Developers are building browser extensions that overlay AI‑generated and user‑voted annotations onto arbitrary web pages, turning annotation and provenance into a pluggable layer rather than a property of individual platforms. If widely adopted, these overlays could become the default way readers see context, corrections, or provenance across news, blogs, and social posts. — This shifts who gets to annotate, contextualize, and 'factcheck' public information — changing reputation, moderation, and influence away from site owners toward whoever controls the annotation layer and its models.