Projects like OpenClaw and Hermes already show that this can work whether the source is RSS or simply a website the agent visits.
Even Google now envisions this, since they recently announced "information agents" (https://blog.google/products-and-platforms/products/search/s...) that will keep working in the background. They surely have an index they can use, but I wonder whether that's necessary? AI agents like Claude Code suggest it's possible to use simple keyword searches, without maintaining vector indexes - https://www.tigerdata.com/blog/why-cursor-is-about-to-ditch-...
It could be that soon we're gonna get a fully personalized briefing on the topics that we're interested in, or maybe a new kind of feed, replacing social media.
I'm actually working on the briefing idea myself: https://briefin.com