Explore the evolving landscape of internet censorship and circumvention technologies in this 55-minute conference talk from the 35th Chaos Communication Congress. Gain insights into the conceptual workings of circumvention tools, the evolution of adversarial techniques, and the latest innovations in preserving open internet access. Examine the impact on emerging economies with built-in censorship and surveillance infrastructure, and learn how circumvention trends correlate with censorship events and social movements. Discover the future trajectory of censorship and circumvention technology, covering topics such as IP address blocking, DNS poisoning, HTTP whitelisting, and deep packet inspection. Suitable for all experience levels, this foundational talk provides a comprehensive overview of the ongoing technical contest between censors and those working to maintain internet freedom.