“If we are to believe the latest conclusions of Tony Wright (speaking above in a National Geographic documentary) the left brain hemisphere has not simply dominated a more passive right; rather, over time, it has changed our neurochemistry and neural structures to support its own ascent. In his new book, Left in the Dark, Wright argues that “humanity is suffering from species-wide brain damage” and this damage is the “root cause of our obvious insanity.” – Via BoingBoing.com