Explore the potential for doubling HTTP client throughput in Node.js applications through this insightful conference talk. Delve into the development of undici, a new HTTP client that addresses the long-standing issue of head-of-line (HOL) blocking in TCP/IP networks. Learn how undici leverages keep-alive connections and pipelining techniques to significantly boost application performance. Discover the historical context of HOL blocking, its impact on distributed applications, and how undici's innovative approach can lead to a twofold increase in throughput. Gain valuable insights into optimizing Node.js HTTP client performance and enhancing the efficiency of your web applications.