If this is a hoax it is very convincing. Tim, a teenage American polyglot, demonstrates his ability in 10 languages in these Youtube videos. Not only are the languages mostly unrelated to each other and his own native language, not only has he learned these languages with a high degree of autonomy, he is just in his mid teens!
I hate to be a naysayer but this kid just looks too good to be true. I hope he’s not overstating his abilities because I’ve learned that such behavior inevitably leads to public embarrassment. The optimist in me wants to give him a chance though. Tim, you have made some very impressive videos. I’m excited to see what you will do next!