Uni students have camped out at campuses across the world to protest Israel's invasion of Gaza. They're calling for a ceasefire, and for their unis to cut ties with Israel. So what is it like for student protesters here and at Columbia University in New York? And what is quantum computing? The federal and Queensland governments have committed almost a billion dollars to what's being called "Australia's moon landing".  Guests: Meghnad Bose, student journalist, Columbia University Professor Michael Biercuk, quantum physicist, University of Sydney