Join us as we journey beyond the birth of the universe to unravel the mysteries of what might have preceded the Big Bang—and whether time itself had a beginning.

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Credits:
Before the Big Bang — What Came Before Time?
Episode 738; July 20, 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 Asking the Impossible.
2:08 The Limits of Time and Spacetime.
7:45 Beyond the Big Bang: Alternate Beginnings.
14:38 Other Realities: Higher Dimensions and Shadow Universes.
18:28 Emergent Time.
22:38 Bubble Collisions and Multiverse Scars.
24:44 Conclusion: What Came Before Time?