July 17, 2019 / 10:39 AM / 5 months ago

Breakingviews - New UK banknote just about passes Turing test

The banknote concept of a new 50 pond note featuring mathematician Alan Turing is presented at the Science and Industry Museum in Manchester, Britain, July 15, 2019. REUTERS/Andrew Yates

LONDON (Reuters Breakingviews) - Alan Turing is to feature on the UK’s new 50-pound note. Among many achievements, the mathematician and wartime code-breaker proposed a test for whether a machine can be described as intelligent. The smartest thing might be to scrap high-denomination banknotes rather than renewing them. But the Bank of England’s revamp of the highest value bill in public circulation just about passes its own Turing test.

True, cash use is declining and there are few everyday uses for fifties. They rarely appear in most Brits’ wallets and, as with the American $100 bill or higher-value euro notes, economists worry that the biggest denominations are mainly useful for money launderers, tax evaders, drug lords and the like.

Yet with 50-pound notes, that logic is marginal. They account for only a quarter of the value of paper money in circulation, compared with just under half for 500-, 200- and 100-euro notes combined, over 80% for U.S. $100 bills, and a whopping 93% for Swiss notes worth 100 francs or more, the largest of which carry a truly private bank-worthy 1,000-franc value.

As a percentage of the UK economy, the value of outstanding 50-pound notes is correspondingly tiny set against high-value notes in Japan, the United States or Switzerland. That suggests the case for getting rid of Britain’s highest-denomination note is weaker than for equivalents elsewhere.

Also, people and businesses aren’t yet ready to go digital. The independent Access to Cash Review said in a March report that as many as 8 million people in the UK still depend on hard cash. That calls for maintaining the existing cash infrastructure while ensuring the progressive shift to digital payments is as inclusive as possible.

Partly swayed by such considerations, the UK’s Treasury said in May that cash is here to stay, including the 50-pound note and, at the other end of the scale, the penny coin.

The refreshed note will at least be harder to counterfeit than the old one. For anyone undecided, it’s also a chance to give Turing – a genius recognised during his lifetime but nevertheless hounded for being gay – the public pedestal he deserves.

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