What does The world is flat mean?

"The world is flat" is a metaphor popularized by Thomas Friedman in his book of the same name, suggesting that globalization and technological advancements have leveled the playing field in international commerce and communication. It implies that geographic and economic barriers are diminishing, allowing individuals and businesses from diverse backgrounds to compete on a more equal footing. This concept highlights the interconnectedness of the global economy, where ideas, products, and services can flow freely across borders.