Explore a cutting-edge conference talk on improving cryptocurrency payment systems through innovative routing techniques in Payment Channel Networks (PCNs). Dive into the challenges of scaling fast payments in cryptocurrencies and discover how the proposed solution, Spider, addresses these issues. Learn about the concept of "packetizing" transactions and the implementation of a multi-path transport protocol to achieve high-throughput routing. Understand how Spider compares to existing approaches, requiring significantly less funds to route transactions successfully and effectively handling imbalanced traffic demands. Gain insights into the potential future of cryptocurrency payment systems and their scalability from experts at leading institutions such as MIT, Carnegie Mellon University, and the University of Illinois at Urbana-Champaign.