If you have any doubts about the scope of Google’s ambition, read this interview
IDG News Service: What is the perfect search engine? If you had a magic wand and could create it, what would it look like? What would it do?
Marissa Mayer: It would be a machine that could answer that question, really. It would be one that could understand speech, questions, phrases, what entities you're talking about, concepts. It would be able to search all of the world's information, [find] different ideas and concepts, and bring them back to you in a presentation that was really informative and coherent.