Why stronger guns encouraged fleet concentration

The King Edward VII class carried several layers of armament suited to independent operations and close fighting. Early dreadnoughts concentrated their fighting power in heavy guns intended to engage other dreadnoughts. Fisher's movement towards a concentrated fleet matched that change in the capital ship's role. The explanation offered here is that weapons were developing faster than the sensors and information handling needed to use them. As engagement ranges increased and each shell became less likely to hit, bringing ships together allowed more shells to be fired at the same distant target. The older mixed batteries belonged to a different expectation of battle, one more likely to end at close quarters.