The world is constantly evolving and was like this even before humans dominated the Earth. However, what interests us for this topic are the last decades, where globalization had an impact at the beginning of the 21st century, making the world “flat”. The phrase that the world has become flat is a metaphor for seeing the world level in terms of trade and competition, meaning a level playing field where everyone has equal opportunities. However, opinions are divided on how much globalization has actually impacted the world as a whole. Critics argue that Friedman's term "flat" is grossly exaggerated since his view is from an American perspective. This article analyzes the main arguments for both sides. The arguments in support of the "flat world theory" come mainly from Friedman. His argument is based on the assumption of ten flattens and triple convergence. Friedman states that the power of new information technologies has helped bring the world closer together and made it more interconnected and interdependent (Friedman, 2005). Today, more and more people have access to this technological platform for education, innovation and entrepreneurship (Friedman, 2005). However, Florida (2005, p.51) argues that this flat playing field mainly affects advanced countries, which see not only manufacturing jobs but also high-end jobs. Other developing or underdeveloped countries simply cannot afford the luxury of this connection and are being excluded from this technology platform. Florida (2005, p.51) argues that “…there are more insidious tensions between the world's rising peaks, subsiding valleys, and shifting hills.” This inequality is growing across the world and within countries. Friedman also talks about the ten flatteners such as workflow software, open sourcing, outsourcing, offshoring, and supply chain. Friedman (2005, p.35) argues that “these flatteners created the platform for collaboration that flattened the world even further.” This global collaboration boasts increasing levels of internationalization in today's world. This means that more and more companies are internationalizing and doing business abroad. However, Ghemawat (2007, p.56-57) disputes this with his “10% Presumption”. Ghemawat (2007, p.56-57) argues that “most economic activities that could be conducted both within and outside borders are still rather concentrated at the national level”. The total amount of capital invested in foreign direct investment (FDI) worldwide has been less than 10% for the last three years for which data is available (2003-2005) (Gemawat, 2007). This means that the growing majority of investments are based domestically.