A viewer mentions a Japanese announcement about developing railguns for missile defence. A working system would worry China because it could weaken the assumption that a sufficiently large missile salvo would guarantee hits. The technology had not already solved missile defence, but a cheap or deep defensive magazine could change the arithmetic of saturation attacks. This connects an experimental weapon to the operational competition between offensive salvo size and defensive capacity.
Notable Point · 2:57:51-2:58:07
Why Japanese railgun defence could disrupt missile salvos
A Japanese railgun used for missile defence could challenge an attacker's ability to rely on numerical saturation.