![TED Talks Daily (SD video) show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/759/small/tedtalks-video.png)
Summary: At the intersection of medical invention and indigenous culture, pediatric cardiologist Franz Freudenthal mends holes in the hearts of children across the world, using a device born from traditional Bolivian loom weaving. "The most complex problems in our time," he says, "can be solved with simple techniques, if we are able to dream."