It is the height of the Second World War. A group of codebreakers stands in a dimly lit warehouse 50 miles northwest of London, a giant machine composed of spinning drums and wires looms in front of ...
A proof made public today illustrates that Stephen Wolfram's 2,3 Turing machine number 596440 is a universal Turing machine, and it has netted a University of Birmingham undergraduate $25,000. In 1936 ...
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