Plus Advent Calendar Door #16: The puzzle of time

Share this page
Roger Penrose

Roger Penrose talks to us about the nature of time and his cyclic universe model.

Time is a problem, not just for you and me, but also for philosophers. What exactly is time? Why does it have a direction? And was there a beginning of time? In this podcast philosophers of physics Jeremy Butterfield and David Wallace, as well as the eminent Roger Penrose talk about the puzzle time poses, and what it has to do with the Big Bang and thermodynamics.

There is more about the nature of time in the Plus article What is time?, and you can find out more about Roger Penrose's cyclic universe model, which he talks about in this podcast, in his book Cycles of time.

Return to the Plus Advent Calendar

You can listen to the podcast using the player above, and you can listen and subscribe to our podcast through Apple Podcasts, Spotify and through most other podcast providers via podbean.
Read more about...
  • Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

  • As COP28, the 2023 United Nations Climate Change Conference, kicks off we look at how maths can help understand the climate crisis.

  • How do you create dramatic film out of mathematics? We find out with writer and director Timothy Lanzone.

  • Mathematics plays a central role in understanding how infectious diseases spread. This collection of articles looks at some basic concepts in epidemiology to help you understand this fascinating and important field, and set you up for further study.

  • Find out why the formula we use to work out conditional probabilities is true!

  • We talk about a play that explores the fascinating mathematical collaboration between the mathematicians GH Hardy and Srinivasa Ramanujan.