226 | Doomsday Clock

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A special extra episode with Rachel Bronson, president of The Bulletin of the Atomic Scientists, about their decision to move the Doomsday Clock 20 seconds nearer to midnight, closer that it's ever been.  She explains why the world is more dangerous now than even at the height of the Cold War and what are the risks that keep her awake at night.  How close really are we to the end?  Scary but essential listening.  Recorded at the Cambridge Centre for the Study of Existential Risk.

225 | Superforecasting

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We talk to David Spiegelhalter, Professor of the Public Understanding of Risk, about the science of forecasting.  Who or what are the superforecasters?  How can they help governments make better decisions?  And will intelligent machines ever be able to outdo the humans at seeing into the future?   From Cummings to coronavirus, a conversation about the knowns, unknowns and what lies beyond that.

137 | Talking Politics guide to ... Existential Risk

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David talks to Martin Rees about how we should evaluate the greatest threats facing the human species in the twenty-first century. Does the biggest danger come from bio-terror or bio-error, climate change, nuclear war or AI? And what prospects does space travel provide for a post-human future?