Lord Nelson challenges the idea that a breakthrough instantly makes every earlier platform irrelevant. Dreadnoughts displaced the older sovereign-style battleships from the front rank, but did not erase their military usefulness. Building overlapping classes gave Britain a fallback while new gunnery, turbines, and battlecruiser concepts were proven. That insurance depended on the industrial capacity and supporting infrastructure to build several development paths at once, a luxury available only to a heavily investing naval power. The class then demonstrated its value in the war effort far from the North Sea.
Chapter · 43:24-48:30
Technology transition and fleet resilience
Lord Nelson's career argues that a newer system can supplement an older one while navies learn whether a major technological leap will truly work in service.