Mushroom Leather? 3D-Printed Homes on Mars? “A Brief History of the Future”

In a new documentary series, "A Brief History of the Future," renowned futurist Ari Wallach travels the world to meet the people finding solutions and laying the foundation for a better world for the generations to come. Ari Wallach joins Hari Sreenivasan to discuss how we might become the great ancestors the future needs us to be.