He at one time was a psycholinguist, and was attempting to inherit Chomsky’s helm by reiterating everything Chomsky had said that about language more clearly than Chomsky was able to–and probably in books rather than research articles. Then he decided he wanted to inherit whatever you get when you cross Steven Jay Gould with Dawkins and maybe Hofstedter, and put that stuff in books to sell in the airport. Recently, he decided he wants to inherit the helm of the evolutionary stepchild of E. B. White, and Samuel Clemens, and George Will, by being a humourless commenter about language, which I guess he has some credibility for. He hasn’t been anything close to a scientist or an originator of new ideas for years, but is a popularizer of science like Nye and Degrasse Tyson. I did see a poster with him listed as a coauthor at the cognitive science conference a few years ago, but his role in the world is no longer as a scientist.