Just as you were getting comfortable with a digital world, here comes the material revolution, a transformation in the production and distribution, of, well, everything. 3D printing has broken out of its limited industrial uses and landed on a million desktops. New materials, such as graphene, will make it possible to print out complex and durable machines at costs approaching zero. Guy Rundle talks to the people at the frontline of this mind-boggling new world, and paints a vivid picture of how life will change as today's emerging technologies become mainstream. There will be enormous implications not just for Australia, but for the global economy, international relations and the fundamental structures of our lives.