Dialect and language are sort of a "coastline problem". You can find variation between two neighboring villages if you like, but at some point you have to draw

Dialect and language are sort of a "coastline problem". You can find variation between two neighboring villages if you like, but at some point you have to draw a boundary around a group of speakers and call it a dialect. I'd assume the common dialect of Santiago, where most people live in Chile, is considered "the Chilean dialect," but it almost certainly sounds different in rural areas.