Panellists: Christopher Hitchens, author and radical atheist; Father Frank Brennan, Jesuit intellectual and social activist; Waleed Aly, politics lecturer; Sally Warhaft, author and founding editor ofThe Monthly; and Anne Henderson, biographer and deputy director of The Sydney Institute.

Panellists: Alexei Sayle, satirist and comedian; Anthony Albanese, Minister for Infrastructure; Christopher Pyne, Oppostion education spokesman; Nikki Williams, CEO of the NSW Minerals Council; and Deepa Gupta, of the Indian Youth Climate Network.