Unpacking the secrets of life, the universe and everything with world-renowned physicist Brian Greene. The panel discuss defence spending and AUKUS subs, the NSW election, cashless poker machines and tough budget decisions. Live from Sydney. Panellists: Brian Greene, Physicist and best-selling author; Geoffrey Robertson, Human Rights lawyer, academic and author; Matt Keogh, Minister for Defence Personnel; Dai Le, Independent MP for Fowler; and Kirsten Banks, Science communicator.