The opening argument places warship design inside its technological, strategic, and cultural setting rather than treating HMS Dreadnought as an isolated invention. Tsushima demonstrated long-range fire and the tactical value of crossing an opponent's line, although the exhausted Russian fleet had reached the battle in poor condition. Turbines, armor, high explosives, radio, and salvo director control were all improving at the same time. Large guns only became decisive when fire-control methods could give them a realistic chance of hitting at their intended range, so Dreadnought emerged from a convergence rather than one battle or one invention.
Chapter · 1:24-3:23
Tsushima and the technology window for dreadnoughts
Tsushima's long-range fighting meets advances in turbines, armor, explosives, radio, and director control to make an all-big-gun battleship practical.