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Alan Turing, the brilliant mathematical and computer scientist who died in 1954, is a worthy subject to adorn the British £50 note. Turing pioneered much of modern computer science, and he played a key role in decrypting the Enigma code which helped to defeat Hitler’s Germany. One advantage of a nation having its own currency is that it can illustrate banknotes with men and women who deserve honour, illuminating their lives and drawing people into the narrative of history. I remember, back in the day, being fascinated by the beautiful French banknotes illustrated with portraits of Cardinal Richelieu and the writer Antoine de Saint-Exupéry. It seems regrettable that today France, Germany, Italy and most of the other EU countries are denied biographical history in the form of banknotes. The euro notes, as we know, are strictly impersonal, with purely symbolic bridges and window frames, deliberately avoiding any specific historical allusion. So the Bank of England’s decision to feature Alan Turing is surely welcome. It is often claimed, by the way, that Turing took his own life in 1954 when he was subjected to hormonal treatment, after being convicted of a homosexual offence. But this apparent suicide is disputed: some biographers claim he was carrying out a cyanide test and killed himself by mistake. Like many boffins, he could be odd and impractical. The mystery of his death makes his story more tragic, but also more enigmatic and engaging. That’s what a banknote image can do – involve you with a life, and a history.***
There’s now an app that can project a person’s face into the future, and produce a computerised image of how they will look in their 80s or 90s. The celebrity chef Gordon Ramsey, the broadcaster Jeremy Vine and the performer Courteney Cox are among others who have publicly tried the FaceApp, which wrinkles them profusely. This could develop into an interesting spiritual exercise – with the added provision of how it feels, on the inside, rather than cosmetically, to be a great age. The saints and sages have been doing it for centuries – especially in their reflections on death and mortality. Follow Mary Kenny on Twitter: @MaryKenny4








