Let's face it, nobody (and by this I mean less than 1% of the population) does advanced searches with symbols or logic. Have you "advanced searched"? No. Me neither. This is why I believe making better decisions comes from knowing more about the topic. Seems logical, right? To know more involves understanding who's involved. In the ancient days we used libraries and sought out multiple titles to consider, confirm assumptions and validate views. Those are data collisions.