The United Kingdom is hosting the AI Safety Summit, bringing politicians, computer scientists and tech executives to a site chosen for its symbolism: Bletchley Park, synonymous with codebreaking and the birth of computing. During World War II, a group of mathematicians, cryptographers, crossword puzzlers, chess masters and other experts gathered at the Victorian country house 45 miles (72 kilometers) northwest of London to wage a secret war against Nazi Germany. Their goal: cracking Adolf Hitler's supposedly unbreakable codes.
Bletchley Park's most famous feat was outwitting Germany's Enigma encryption machine, which produced a constantly changing cipher and was widely considered unbreakable. To crack it, mathematician Alan Turing — building on work done by Polish codebreakers — developed the “Turing bombe,” a forerunner of modern computers.
Deciphered Enigma messages revealed details of the movements of Germany's U-boat fleets and provided crucial information for the North African desert campaign and the Allied invasion of France. Some historians say cracking the code helped shorten the war by up to two years.
Historian Chris Smith, author of “The Hidden History of Bletchley Park,” said it is impossible to prove the extent to which the work at Bletchley Park shortened the war, but it undoubtedly sped up the development of computing.
Bletchley Park's wartime scientists developed Colossus, the first programmable digital computer, to crack the Lorenz cipher that Hitler used to communicate with his generals.
“They built, effectively, one of the early generations of computers from basically nothing,” Smith said, exhibiting a “technological optimism” that's a striking feature of wartime Bletchley Park.
No wonder current Prime
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