Listen now 55 mins
Pooneh Ghoddoosi talks to the Ncholo siblings from South Africa who forgive the man who murdered their brother.
We also hear from American Nate Silver, a so-called 'political astrologer' who uses data to to forecast anything from sports results to earthquakes.
Also Kenyan novelist Mukoma Wa Ngugi on the advantages of coming from a family of famous writers; the British cancer survivor Ian Clements who's been tracking his life in numbers for over 40 years, and; a British family who were held hostage at a chemical factory by the Iraqi government in the run up to the first gulf war in 1990 remember their ordeal.
Photo: Paseko (left) and Khotso Ncholo
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