Google's Second Search

A telling view in Xconomy with considerable background information concerning Google's knowledge graph work.   Positioning it as a 'second brain', to avoid coming up empty in the context of a search.   Getting closer to at least the way our brain works.  We seek the obvious match, access the credibility of the results, try analogies, differing paths to results, ask experts in the field.   But we are not machines so we cannot be quite so precise.  But we do now have an advanced search to help us achieve something similar.