04:50The Big IdeaThe fragility of choiceBBC World Service Duration: 9 minutes Sun 4th Oct 2020, 04:50 on BBC World Service East and Southern AfricaAvailable for over a yearListen nowWhere do our opinions come from and how easy is it for people to change them? Show more GenresFactualFormatsMagazines & ReviewsBrandThe Big Idea Source: BBC Online