Any person who can speak 6 or more languages is known as Polyglot. Matthew Youlden is one of the member of this elite group but not only he knows to speak 9 languages he also can understands more than 10 other ones too.
He is a sociolinguist who studies minority languages that are vanishing or the ones that are revitalizing. He learned all languages mostly because: “the monolingual lifestyle, for me, is the saddest, the loneliest, the most boring way of seeing the world. There are so many advantages of learning a language; I really can’t think of any reason not to.”
In the video above he is talking with a polyglot friend and in this one he is talking to the camera in 9 languages: