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Plus Advent Calendar Door #13: Does infinity exist?

Does infinity exist?

That depends, in part, on what you think infinity is. In this podcast cosmologist John D. Barrow explores the concept of infinity, from shock waves to black holes, and from Aristotle's ideas to Cantor's never-ending tower of mathematical infinities.

The podcast was recorded to celebrate the International Year of Astronomy 2009, but given the enduring nature of the subject, Barrow's answers are as relevant today as they were then.

Click here to read the article that accompanies this podcast.

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