Here is a great presentation by Hans Rosling of Gapminder fame. Gapminder developed software that converts international statistics into moving, interactive graphics. His lectures using Gapminder graphics to visualise world development have won awards. Here he uses bubbles and graphs to show how the rest of the world caught up to the US and predicts by 2040 that China will have overtaken them. It also interesting to note the increase in income in China between 1980 – 2010 and compare it with the US.