We explore how technology is changing the way we design and construct the world around us. We explore how robots and artificial intelligence are ushering in a new era of computational architecture at ETH Zurich, where shapes, forms and buildings are conceived and created by machines. We then meet the CalTech professor of material science who is re-imagining architecture…at the nanoscale. Julia Greer has been designing new approaches to creating structures and lattices at a scale that almost boggles the mind—a structure smaller than the diameter of a human hair that is 99 percent air, yet at the macro-scale, is stronger than steel.