Simon Calder meets speakers of indigenous languages (like Welsh in Britain), of dialects (like Moselfrankish in Germany) and vernaculars (like African-American Vernacular English, in the US). These speakers all use the mainstream language every day, but code-switch to their variants, questioning whether their societies are monolingual. Is there even something sinister and oppressive to the idea of monolingualism?

This post was originally published on The Documentary Podcast.