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The P versus NP problem
British mathematician Timothy Gowers discusses a quest for proof and its implications for problem solving and internet security. With Arab-American Suheil Bushrui and British novelist Bernadine Evaristo.
Presented by Bridget Kendall.
Do you think political or business leaders need to be charismatic? Or do you prefer highly competent but somewhat stern people?
Podcast
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The Forum
The programme that explains the present by exploring the past