Venezuelan economist Ricardo Hausmann and Chilean physicist César Hidalgo, in a joint effort of Harvard University and the Massachutes Institute of Technology MIT, draw a new world map of economic adventure, and suggest the Earth may not be flat.According to classical economics, the road to development for producers of raw materials would be to achieve growth by adding value "downstream" in the chain of production. "If you have trees, try to export furniture instead of wood," would be the mantra, as formulated by Ricado Hausmann to MIT's Technology Review. This approach aggregates very dissimilar things within big magnitudes, such as GDP, or "capital goods". But to Hausmann, the physician César Hidalgo, and their colleagues at The Observatory of Economic Complexity at Harvard/MIT things don't work like that. The world is full of economies with different degrees of complexity. As Hidalgo likes to put it: the world is unequal in its diversity. Some countries produce a few simple goods, while others manufacture many different and complex ones. Every single product carries specific knowledge embedded -or "capabilities". The interplay of capabilities can bring about combinations that prompt, rather, cell phone manufacturing from tree felling, as was the proverbial case of Nokia. To get behind this magic, Hausmann and his coworkers created the model of Product Space and theEconomic Complexity Index: based on trade data and complexity theory a graphic representation was produced, akin a neuronal web, to reflect the productive knowledge of each country.