Why hindsight would help the Royal Navy most

Which interwar fleet would benefit most from later hindsight?

The Royal Navy, because its global commitments force many difficult choices; faster Nelson and Rodney ships are one early example of what hindsight might change.

A navy operating across many theatres must make more consequential trade-offs than a geographically concentrated fleet. That makes hindsight especially useful to the Royal Navy. One early design change would use Nelson and Rodney's available displacement for a third shaft and machinery capable of pushing them beyond 28 knots. The example connects strategic geography directly to technical design priorities.