Fisher's replacement logic for capital ships

Does the Royal Navy need another Jackie Fisher?

Fisher anticipated major changes accurately, but his simple battleship-to-carrier-to-submarine sequence understated the way naval roles overlap.

Fisher's career shows why naval technology rarely moves through clean one-for-one substitutions. Submarines, carriers, and battleships overlapped as different tools solved different operational problems. Railguns or another future weapon might revive a big-gun surface combatant. Such a ship would not necessarily resemble a classic battleship.