A Festival of Dangerous Ideas
No progress without dangerous ideas. Ideas can be dangerous regardless whether they are true or not and they even can be dangerous just because they are considered to be true or because they are considered to be false. Ask Copernicus, Darwin, Hugo de Groot, Nelson Mandela and other great minds in history. There is something that attracts people to dangerous ideas although they might be scared of it too, or just because they are scared of it. Maybe that is one of the reasons the Sydney Opera House held a Festival of Dangerous ideas.