Stuart Brown says play is more than fun

This speech is a long speech, but I don't feel boring during the speeh. I think this speaker is very good at telling story. In this speech he gives us many example and information to let the audience tink of play is more than fun. And his picture for supporting is very funny. He mentions many aspect of play, including brain, emotion, explexion, and physical activity. All he tells us is what we see in everyday but never think of it. We all play for fun, but no play for enjoy life. this speech gives me some ideas to make my speech more interesting, I like this speech.