Would an 18-inch Agincourt restart the naval race?

Would completing an 18-inch-gunned Agincourt reopen the dreadnought race that Queen Elizabeth had won?

It would continue the Anglo-American qualitative race, not revive the defeated Anglo-German quantitative contest.

The prewar dreadnought competition consisted of several linked races. Queen Elizabeth and Revenge could end Germany's attempt to match British numbers and quality because the German Navy lost the funding contest with its army. Britain and the United States still benefited from building one or two progressively better ships without the same political hostility. A one-off 18-inch Agincourt would fit that quieter contest by demonstrating British technical leadership without demanding a new mass battle fleet. The distinction between qualitative experimentation and quantitative escalation is central to the video's argument.