Alan Turing

12 Dec 2015

At ... Alan Turing is famous, in books, urban myth and in a film, for cracking the Enigma Code - but among mathematicians and computer scientists he is even more famous for proving that certain mathematical questions are 'undecidable' - they were neither true or false (but beyond the reach of mathematicians). Astronomers think they have reached an 'undecidable' point - but read on (at the link).