The history and the future of geotagging: this week Paul Ford and Rich Ziade talk to Aaron Straup Cope, a programmer who works with maps and geographical datasets. The conversation covers his time as one of Flickr’s earliest employees, data visualization, gazetteers, the evils of Walmart, geocoding (and reverse geocoding), and one of the most controversial decisions in online mapping—Google’s decision to cut off the poles and make the world a square.

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