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OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005

738 points · 448 comments · sohkamyung

  1. mmsc · · focus · HN ↗
    For anybody interested, the actual encrypted message:

      BTTE UM ANGABE DES MARSQWEGES X BEFINDE MIQ IN X ROSENOW ROSENOW X SOFORT FUNKANTWORT X WASCHBBSCH
    
    which, given misspellings, translates approximately to:

      Please specify the route of march. I am in Rosenow, Rosenow. Immediate reply by radio. Waschbusch.
    1. booty · · focus · HN ↗

          I am in Rosenow, Rosenow. 
      
      From the article:

          After trying many different approaches, GPT–6 
          Astra focused on using the repeated place name 
          ROSENOW ROSENOW as a crib. 
      
      This feels extremely underexplained! Why would Astra think to use that as a "crib"? Was it common to repeat the place name in these messages?

      (Is it possible that this is a misreported detail? It feels like a singular ROSENOW would be an equally effective crib)

      1. hmokiguess · · focus · HN ↗
        Maybe naive of me, but could it simply just be the overfitting of the same tokens being sent on the input twice because of repetition rather than some unknown implied intelligence.
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