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Brian Cox and Robin Ince are joined on stage by Danny Wallace, Hannah Fry and Timandra Harkness to ask: how big is big data, and what wisdom lies hidden within it?

Brian Cox and Robin Ince are joined on stage by Danny Wallace, mathematician Hannah Fry and science writer Timandra Harkness. They'll be going big on Big Data, and asking just how big is it? They'll be looking at where Big Data comes from, should we be worried about it, and what mysteries are hidden within the seemingly endless amounts of information that is collected about us as we go about our daily lives.

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30 minutes

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How many of these GCHQ puzzles can you solve?

How many of these GCHQ puzzles can you solve?

Seven brain teasers set by the government's intelligence agency.

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