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When Joseph Woodland, who died in December 2012, was a master's student, he was sitting on a beach in his grandfather's property thinking about how to encode information about products. He was doodling in the sand, when he happened to see he had made four lines in the sand.

What, dubbed the "Universal Product Code", would he eventually be the father of?

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This day last year: Q.456

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In Jan 2017, Finland became the first country in Europe to officially experiment with this socio-economic concept. Similar experiments are scheduled for many Dutch cities and the Canadian city of Ontario in 2017. In the case of Finland, the figure is 560 Euros a month. What concept?

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