“As people in a literate society, we think of language as what’s on the page. That’s the real thing; speaking is just an approximation. Language sits still. But then we hear new things coming in and unless it strikes us as catchy, we think, It’s not supposed to do that because that’s not what in the book. So when new things happen, they’re processed as vulgar and as broken. We don’t understand that no language could ever sit still.”