The speaker makes a brief, yet tantalizing comment about the work done by Pinker on tracing the history of the human race as chaoti and violent. Many of Pinker's works cover various topics in psychology, language, and human nature. Steven Pinker has written many books. Some listeners may want to explore this area of science further.
Like if you look at like some of Pinker's work and some of these other people that have looked at the history of the human race, it is chaotic and violent as it seems to be today.
""Speaker briefly refers to books/studies made by Pinker about the chaotic history of the human race. Listener may be interested in obtaining a work that elaborates on those statements"