"Certainly the experiences of Seth and his relationship to his parents and his point of view of the world are very similar to my own and very much based on my experiences at the University of Southern California"

Josh Schwartz is referring to his experiences at the University of Southern California and how they connect to the experiences of Seth, a character in his show. He is indicating that Seth's relationship with his parents and his outlook on the world are extremely comparable to his own experiences at USC. This could be interpreted as Schwartz drawing on his own experiences to create a character that is relatable to the audience. It could also be viewed as a way for Schwartz to reveal his own feelings and feelings through the character of Seth. By developing a character that is so similar to himself, Schwartz has the ability to share his own story with the audience.