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They completed five years recently. In a blog post to mark the occasion, one of their teams spoke about what they called "The Great Migration, the Winter of 2011". This is a reference to how they made several significant changes to their systems (without affecting their users) in order to prevent sightings of a certain non-bird.

Who are they and what did they not want people to see?

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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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