Language is a defining feature of humanity, and for centuries, philosophers and scientists have contemplated its true purpose. We use language to share information and exchange ideas — but is it more than that? Do we use language not just to communicate, but to think?In the June 19 issue of the journal Nature, McGovern Institute for Brain Research neuroscientist Evelina Fedorenko and colleagues argue that we do not. Language, they say, is primarily a tool for communication.Fedorenko acknowledges that there is an intuitive link between language and thought. Many people…