As a child growing up in North Korea, Hyeonseo Lee thoght her country was the "best on the planet." It wasn't until the famine of the 90s that she began to wonder. She escaped the country at 17-years-old to begin a life in hiding as a refugee in China. Hers is a harrowing, personal tale of survival and hope -- and a powerful reminder of those who face constant danger, even when the border is far behind.
Lee Smolin is a theoretical physicist, working mainly in the field of quantum gravity. He's a founding member of the Perimeter Institute for Theoretical Physics in Canada, and the author of The Trouble With Physics.
TED Senior Fellow Jae Rhim Lee develops new rituals and objects around death to point us toward a more sustainable future, including a mushroom burial suit that converts our unused bodies efficiently into clean compost.
Robert Lee Hotz is the science columnist for the Wall Street Journal, where he writes about cutting-edge research on climate change, cosmology, molecular medicine, the human brain and much more ... He has traveled three times to the South Pole.
Mary Lou Jepsen pushes the edges of what's possible in optics and physics, to make new types of devices, leading teams and working with huge factories that can ship vast volumes of these strange, new things.