Query-less search

An examination of query-less, or parameter-less search in Google Operating System.  And the mention of a Google patent in the space.  And its ultimate integration in Google Now.  We explored the idea with MIT researchers.  A researcher writing a document would have parallel searches invoked by a combination of the domain the researcher was working in, and the previous writings of that researcher and their colleagues.   Links between these searches would be captured and presented as needed.