Open the dark green shutters and step outside.

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It was a huge step into the dark for a conservative sport built on convention, but F1's first night race was universally acclaimed.

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They are gorgeous, bright-eyed, brilliant girls: one tall, one short, pant legs dragging, torn leggings, sneakers that glow in the dark or light up with each step, boom boom boom.

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Most of all, there is nothing as satisfying as those moments where you step out on a dark night, the wind blowing, the rain beating down, with a long journey ahead - and decide to catch the Tube instead.

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More than ever, that experience is backed every step of the way by data, which means that the dark corners of data performance risk are becoming a bet-the-company vulnerability.

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There will be much talk about how the eurozone crisis can be solved, what the next step should be in the US where a debt ceiling still casts a dark shadow over optimism, and about how income inequality has become a problem for all - rather than merely an advantage for haves over have-nots.

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