Erico says: "Put on your VR goggles and walk on this thing without fear of hitting a wall. Built by Italian and German researchers, it's the largest VR platform in the world."
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.