Sara Wheeler on why sleeping in Captain Scott's bunk in the Antarctic got her thinking about imposter syndrome.

'It took me many years,' writes Sara, 'to realise that I had as much right to be in Captain Scott's hut as anyone else, because nobody owns the Antarctic, or the hut, or Scott's legacy."

Producer: Adele Armstrong
Sound: Rod Farquhar
Production coordinator: Janet Staples
Editor: Tom Bigwood