We have observed that the more that is captured, the more correlations are possible to help find things. For example, suppose you want to refer to a document you recall viewing when visiting Boston last year. A GPS trail or travel calendar entry can be used a the starting point for a search performed for all events from the same day, where the entry for viewing the document along with its name and thumbnail appears. We could multiply examples of this sort – perhaps you recall it was a hot day; perhaps you remember an appointment on.
