Watch a 12-minute conference talk exploring the current state of IPv6 adoption and its implications for the internet's architecture. Examine the original goals of IPv6 implementation, particularly the end-to-end principle, and how they compare to today's reality. Understand the emergence of a persistent dual-stack world where IPv6 and IPv4 coexist, with varying adoption rates across mobile devices, desktops, and network infrastructure. Learn valuable lessons about managing large-scale protocol transitions and consider the practical implications for future internet infrastructure changes. Gain insights into the unexpected ways the internet evolved despite initial predictions from the 1990s and early 2000s about IPv4's eventual retirement.