Friday 15th March 2024, 12.30pm (day 4,586)
Found another excuse to leave home for a while and come for a weekend in Milton Keynes, which may not sound the most immediately glamorous destination, but it does have the significant draw of Bletchley Park. It was here that World War 2 was won, arguably, when a (largely female) staff of thousands worked tirelessly to crack German ciphers, mainly produced by the now-famous Enigma machines, of which the museum still has a few dozen, out of about 450 surviving ones apparently.
Do you know that if Enigma had ever enciphered a letter as itself, the code would have been near-impossible to crack? But this was its fatal weakness, giving just enough indication that particular strings of gibberish might just be commonly-used phrases like “Wetter für heute” [‘the weather for today…’] and allowing each daily machine setting to be worked out.
Being 42 