This fascinating clip features global health expert and statistics whiz Hans Rossling talking about the relative health and wealth of 200 nations over the last 200 years. He uses 3D imaging technology to take a relatively old-world visual representation of knowledge -- the graph -- and bring it into the 21st century. His presentation uses over 120,000 pieces of data to track the increasing health and wealth of countries all over the world. We've come a long way in the last couple of centuries, folks, and according to Rossling, at least -- if trends continue in the direction they've been going -- the future is looking bright.