Since Darwin's day, the principles of evolution have been used to try to explain how and why language changes. In a new study, researchers look at changes within the English language over short periods of time and find random chance plays a larger role than previously thought in quickly altering aspects of language.
What's new: Techniques used by biologists to study genetic changes have been honed, and linguists can now use them to analyze the large amounts of digitized texts. Understanding what causes individual words, sounds and syntax to change within a single language could provide clues about how new languages arise. And, advances in linguistic understanding have led to better speech recognition, predictive text, artificial intelligence and related algorithms.
Bottom line: We are beginning to get a detailed picture of the history of language, much like we have for the history of species.