Episode description
When economist Noreena Hertz became very ill she confronted a difficult question: who should she trust?
The answer was much more complicated than it first appeared and her quest to find out more about her treatment led her to a deep scepticism about expertise.
Four Thought is a series of thought-provoking talks in which speakers air their thinking on the trends, ideas, interests and passions that affect culture and society in front of a live audience.
Presenter: Ben Hammersley Producer: Mike Wendling.
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