Matt Ridley shows that the reason why humans have advanced as a culture was because we were able to exchange ideas and learn from each other.
More importantly was his point that people do not know how to do everything, but instead leverages on groups of people knowledgeable in their areas. As a result people are contributors to a collective whole and therefore, it is not how smart a person is, but how well he communicates and interfaces with the world around him.
Image source: thinkingdigital
Original Post: http://www.designsojourn.com/when-ideas-have-sex