This document discusses how globalization and the internet have flattened the world by connecting knowledge centers globally. It outlines three phases of globalization where first countries, then companies, and now individuals are able to collaborate and compete worldwide. Examples are given of offshoring jobs to lower costs, transnational corporations operating in multiple countries, and supply chains no longer needing to be within the same country. While some argue this levels the playing field, others note physical location is still important for higher-level economic activities which tend to cluster in major cities, so the world remains "spiky" not flat.