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More or Less looks back at the life of mathematician John Nash, who died in a car crash in May this year. Professor Nash won the Nobel memorial prize in economics in 1994, and was made famous far beyond academia when he was played by Russell Crowe in the film A Beautiful Mind.

´óÏó´«Ã½ Trending talks to the Indian comedian Vir Das, who is using social media to let school students know there is more to life than exam results. The team also explains why Dan Mei, a genre of gay erotic fiction that’s hugely popular among teenage girls, has been banned in Vietnam. Plus, why wearing a miniskirt has become a sign of protest in Tunisia.

In The Why Factor – how did denim become so popular? Mike Williams explores the history and appeal of a simple pair of blue jeans, for everyone from cowboys to the catwalk.

(Photo: John Nash at the Nobel Laureates Beijing Forum 2005 Credit: China Photos/ Getty Images)