Bletchley vs TNMOC
Sad. One wonders why we can't all get along. Perhaps more enlightened management will appear.
I remember, way back in the mists of time, when Bletchley was in danger of being bulldozed and turned into a housing estate, it was the WWII, history and computer nerds who donated to save it. Now, it seems, Bletchley's management has forgotten how related the two facilities should be.
Anyway, from TFA:
Codebreaker Bill Tutte managed to break Lorenz and reverse-engineer the Lorenz machine's internal workings within six months, despite never having seen a machine in the flesh – something that was described by TNMOC as "the greatest intellectual feat of the war".
Possibly equalled by the 18 month long American analysis and reconstruction of the Japanese PURPLE cipher machine. No originals were ever found, but the American reconstruction was able to read all the traffic. It used telephone stepper switches.