The discussion treats an 18-inch Argincourt as a technology shock rather than simply a stronger British ship. An imagined entry into service around 1914-16, after German construction had ceased matching Britain's pace, would establish a new global benchmark. American and Japanese designers would then have strong incentives to pursue comparable ships of their own. Later capital-ship choices might revolve around an 18-inch super-heavy, a rapid-fire 16-inch ship, or a 14-inch quad-turret alternative, changing the background to naval limitation agreements.
Notable Point · 1:27:19-1:30:08
How an 18-inch Argincourt could reshape naval treaties
An 18-inch-gun Argincourt would likely provoke American and Japanese replies and make later treaty limits far harder to negotiate.