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The Plus advent calendar door #4: Does infinity exist?

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What is infinity? What is infinity plus 100? What is infinity plus infinity? Find out the answer behind door number 4!

Our good friend Ash sent us these questions in spring this year, inspiring us to record this podcast. To answer Ash's questions we take a trip to our favourite hotel, and we revisit our 2012 interview with our late boss, John D. Barrow, when we asked him – does infinity exist? Listen to the podcast to find out how infinity can corrupt the youth, why subtracting infinities can give you the right answer, and the weirdness that might be lurking out there in the cosmos...

You can read more about infinity on plus.maths.org. And if you have a question about life, the universe and everything you'd like us to answer – email us as plus@maths.cam.ac.uk or contact us on twitter.

You can listen to the podcast using the player above, and you can subscribe to our podcast through Apple Podcasts, Spotify and through most other podcast providers via podbean.

Return to the Plus advent calendar 2023.