If you're bilingual or multilingual, you may have noticed that different languages make you stretch in different ways. This week, we revisit a favorite 2018 conversation with cognitive scientist Lera Boroditsky. She studies how the structure of the languages we speak can change the way we see the world. Then, a 2017 conversation with linguist and author John McWhorter, who shares how languages evolve, and why we're sometimes resistant to those changes.