Today’s episode explores some very big picture history: David talks to palaeontologist and science writer Henry Gee about the story of the human species from origin to peak to inevitable decline. When and how did Homo sapiens see off the competition from its rivals in the human and animal world? Why did that point mark the start of an inexorable drift towards extinction? In what ways are our strengths as a species also our fatal weaknesses? And how near are we to the end?

Part two of this conversation, which takes the story of human species from the hunter-gatherer period to the present and beyond to explore how long we have left, is available tomorrow on PPF+. To get this and all our bonus episodes plus ad-free listening sign up to PPF+ now https://www.ppfideas.com/join-ppf-plus

Henry Gee’s The Decline and Fall of the Human Empire is available wherever you get your books https://bit.ly/4pshODe

Read more by David about depopulation and human extinction in the current issue of the London Review of Books https://bit.ly/43FEwiO

There are still a few tickets remaining for the next film in our autumn 'Films of Ideas' season at the Regent Street Cinema in London: join us on Friday 28th November for a screening of Eternal Sunshine of the Spotless Mind followed by a live recording of PPF with special guest Beeban Kidron https://bit.ly/4a78KyZ

Next time – Now & Then with Robert Saunders: Thatcher @100

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