I wonder if we could do more by replicating a search engine's approach to information management, but in different and more personal scopes.
Google works quite a bit differently from, say, an application-specific search engine: it doesn't operate on an underlying database, it freely traverses across applications, and it includes understanding from that entire system.
It does this by acting as a user, using the same surface area that a person inspects.
Also of course the problem that creating ever-more-frenetic experiences isn't anybody's idea of fun. Proactive notifications sound good but feel bad.
So what does a reactive tool actually do? What would people ask for that it could provide?
@ianbicking I'm not sure what kind of UX you envision being frenetic, but I like the cross-domain concept. Actually, I like it enough to have been working on a computing platform with that as a foundational principle for probably ten years now (it's a pet project).
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