Steven Arthur Pinker (born September 18, 1954) is a Canadian cognitive psychologist, psycholinguist, popular science author, and public intellectual. He is an advocate of evolutionary psychology and the computational theory of mind. Pinker is also the Johnstone Family Professor of Psychology at Harvard University. Steven Pinker specializes in visual cognition and developmental linguistics, as well as a number of experimental topics. Pinker has written two technical books that proposed a general theory of language acquisition.
https://en.wikipedia.org/wiki/Steven_Pinker