Why early submarine and aircraft judgments need period context

An admiral's 1906 view of submarines cannot establish whether naval leaders understood the weapon's later potential. A boat of 1905 or 1906 had very different endurance, speed, and tactical possibilities from a late-war or World War II submarine, so contemporary judgments must be tested against contemporary capability. Naval aviation changed just as quickly: in 1939 the aerial torpedo remained the dependable ship-killing weapon, whereas wartime bomb development made heavy ships increasingly vulnerable by 1945. A sounder reading of military innovation follows the evolving platform, weapon, and countermeasure without projecting mature performance backward.