Could We See a Second Big Bang?

From quantum tunneling to cosmic inflation, we journey through the theories behind the Big Bang and beyond — and ask the big question: could another Big Bang be in our cosmic future?

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Credits:
Could We See a Second Big Bang?
Episode 724.1; June 10, 2025
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

0:00 Intro
1:59 Why Did the Big Bang Happen?
3:01 Quantum Fluctuations
5:20 Inflation and False Vacuum Decay
7:56 Cyclic Models and the Ekpyrotic Universe
9:43 Big Bounce Cosmology
12:35 Tunneling from Nothing
14:04 Beginnings, Endings, and Echoes