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Economic progress does not always take geography into consideration. At least not in Bolivia, where the mountains surrounding the capital city of La Paz do not offer the easier commute for people living in the suburbs. The city of El Alto, for example, is home to several thousand workers who commute daily to La Paz. The problem is that El Alto is 500 meters higher than La Paz, which sits in a valley, making the commute tedious if not treacherous. Now a solution is …