God, the Big Bang & the fortunate universe

We live in a universe that sustains life – but what are the chances of that?  And scientists now believe that if the laws of physics were different by just a fraction – our universe would be either empty, simple, or long ago extinct. If the strength of gravity or the mass of an electron was different by even the tiniest amount, the universe as we know it would not exist. So tiny even that the difference itself is almost beyond comprehension. Why has this cosmic fine tuning come about? The philosophical and even religious implications are so profound, that this is one of the most exciting questions in astrophysics. Which is why it’s so exciting that this week on the God Forbid panel, we have two internationally acclaimed astrophysicists.  GUESTS: Luke Barnes - Senior Lecturer and astrophysicist at Western Sydney University Geraint Lewis - Professor of astrophysics at The University of Sydney This program was made on the land of the Gadigal People of the Eora Nation