3 Quotes by David Boyle

One of the most famous paradoxes ever articulated is often known by the title ‘the liar’s paradox’. At its simplest you can express it just by saying: ‘I am lying’. The liar’s paradox is a complicated business, discombobulating to think about because after all, if I’m lying, then my statement ‘I am lying’ must itself be a lie, unless I was actually telling the truth, in which case I would have been telling a lie.

Alan Turing appears to be becoming a symbol of the shift towards computing, not least because of his attitude of open-minded defiance of convention and conventional thinking. Not only did he conceptualise the modern computer – imagining a simple machine that could use different programmes – but he put his thinking into practice in the great code breaking struggle with the Nazis in World War II, and followed it up with pioneering early work in the mathematics of biology and chaos.

He was briefly a member of the Home Guard, but got bored of it in 1942 and stopped turning up. The commander tried to frighten him with military law, only to find that on his application form under the question: ‘do you understand that by enrolling in the Home Guard you place yourself liable to military law?’ Turing had written ‘No’.