Whatever happened to ... the optimist who thinks games and music can change the world

Edgard Gouveia stages communal games to help people connect and solve problems. Dancing together is part of his process. Above: At a circle dance at a festival in Berlin, he asked participants to hug at least five other people. Many of them came up to him to thank and hug him, too.

On a planet that can feel increasingly challenged, we asked activist Edgard Gouveia Jr. about his latest efforts to improve life on Earth, what "artivism" is — and what he dreams of.

(Image credit: Marlena Waldhausen for NPR)