Postwar reputations built on an officer repeatedly presenting himself as correct when everyone else was wrong deserve caution. That kind of retrospective operational foresight differs from Reginald Henderson's assessment of the broad war Britain might have to fight. Henderson could reason from multi-ocean obligations to requirements for endurance, speed, and mobility without predicting the exact campaign sequence. Forecasting operations six, twelve, or eighteen months into a war is a much larger claim than designing forces around persistent strategic geography.
Notable Point · 1:31:13-1:32:39
Capability planning is not the same as predicting a war
The contrast between Henderson and Dönitz separates durable capability planning from claims to have foreseen exact wartime operations.