My hotel on the outskirts of Puebla, a city of 1.3 million in central Mexico, looks out over a rolling golf course lined with palm trees and beyond that a busy highway flanked by Mazda and Mercedes car dealerships. The historic downtown has colonial Spanish architecture. Newer areas of the city boast gated subdivisions, Home Depot outlets, and strip malls. I came to attend a technology conference, "Ciudad de las Ideas," now in its third year and featuring such international luminaries as Malcolm Gladwell and Chris Anderson as speakers.