The Big Bang is the reigning explanation for our universe’s origin—but what if it’s wrong? This episode dives into cosmic controversies and the theories that challenge everything we thought we knew.Watch my exclusive video Mass Drivers on the Moon:
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Credits:
Could We See a Second Big Bang?
Episode 730.1; July 6, 2025
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images
Music Courtesy of Epidemic Sound
Chapters
0:00 Intro
1:26 Why Do We Believe in the Big Bang?
4:48 Common Criticisms of the Big Bang
5:11 The Horizon Problem
8:05 The Flatness Problem
12:16 The Monopole Problem
14:08 Dark Energy and Complexity Creep
14:45 The Singularity Problem
15:33 Steady State Theory
18:36 Plasma Cosmology
19:55 Nebula
21:06 Conformal Cyclic Cosmology (CCC)
22:17 Emergent Universe & Braneworld Scenarios
23:11 Quantum Graphity & Causal Set Theory
24:16 Eternal Inflation
24:53 Simulation Hypothesis
25:49 Conclusions
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