As the author does state Bogota and its metropolitan region, the Sabana, is one of the five most important metropolises in Latin America. The economies of Brazil and Mexico or Argentina are in the range of 8 to 4 times larger respectively than that Colombia. That makes Sao Paolo/Rio, DF and Buenos Aires the four most important cities. Benefiting from a location advantage Bogota has a good strategic position to serve as a hub for the South American continent from USA and Europe, albeit the sea level’s height being a burden for aviation.