Is anyone truly monolingual anymore? Knowing dialects, learning languages at school, and hearing migrant speakers make everybody bilingual to some extent. This means that the mother tongue changes, in completely natural and predictable ways. It also means that people may not be as bad at learning languages as they often think they are. Join Professor Antonella Sorace of Bilingualism Matters (The University of Edinburgh) to discover what the extinction of monolingualism could be doing to your brain " and why it matters.