Explore the critical infrastructure that powers global internet connectivity in this 51-minute conference talk examining the undersea cable network that spans the world's oceans. Discover how bandwidth serves as the lifeblood of the internet and learn about the evolution of undersea cabling technology, from its historical origins to today's sophisticated fiber optic systems that stretch across thousands of kilometers. Delve into the fascinating engineering processes behind cable manufacturing, the complex logistics of laying cables across ocean floors, and the remarkable techniques used to locate and repair damaged cables in remote underwater environments. Gain insights into how this essential but often invisible infrastructure enables modern global communications and supports our interconnected digital world.