Is the multiverse possible? Yes! In fact, there are 3 different kinds: Many Worlds, Eternal Inflation, and Infinite Repeating Space. They come from our most fundamental theories: general relativity and quantum mechanics.

Songs "Going Down" and "Moon Men" by Jake Chudnow:
   / @jakechudnow  

YouTube Channel Impersonations:
   / @cgpgrey  
   / @pbsspacetime  
   / @numberphile  
   / @vsauce  
   / @arvinash  

Thanks to ScienceClic and Daniel Schroeder for their help with Stirling's Approximation:
   / @scienceclicen  
https://physics.weber.edu/thermal/
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VIDEO ANNOTATIONS/CARDS

Schrodinger's Equation:
   • The True Meaning of Schrödinger's Equ...  

Combinatorics:
   • Dice Combinatorics, Explained Through...  

What is Dark Mater made of?
   • Dark Matter Isn't Just Dark. It's Inv...  
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RELATED YOUTUBE VIDEOS

PBS Space Time on Multiverse:
   • The Many Worlds of the Quantum Multiv...  
   • Where Are The Worlds In Many Worlds?  
   • How Many Universes Are There?  

Arvin Ash on Cosmology:
   • Is the Universe Fine Tuned for Life? ...  
   • Eternal Inflation: The BEST MULTIVERS...  
   • Cosmic Inflation: The Solution to the...  

Numberphile on Particle Count:
   • How many particles in the Universe? -...  
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SOURCES

Max Tegmark's Multiverse Paper:
https://space.mit.edu/home/tegmark/mu...
https://arxiv.org/abs/astro-ph/0302131

Ancient History:
https://d-scholarship.pitt.edu/22668/...
https://www.forbes.com/sites/fernande...
https://en.wikipedia.org/wiki/Hindu_c...

Many Worlds:
https://arxiv.org/abs/quant-ph/0101077
https://link.springer.com/book/10.100...

Inflation:
https://arxiv.org/abs/astro-ph/0305179v1
http://fma.if.usp.br/~mlima/teaching/...

Boltzmann-Zermelo Argument:
https://ergodic.ugr.es/statphys_grado...

General Info:
https://www.bbc.com/future/article/20...
http://mrob.com/pub/math/numbers-19.html
https://hypertextbook.com/facts/1999/...
https://www.forbes.com/sites/startswi...
https://www.guinnessworldrecords.com/...

Fundamental Constants:
https://pml.nist.gov/cuu/Constants/
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LINKS TO COMMENTS

   • Brown Dwarfs Challenge our View of th...  
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IMAGE/VIDEO CREDITS

Giordano Bruno:
https://commons.wikimedia.org/wiki/Fi...

Ludwig Boltzmann:
https://repository.aip.org/islandora/...

Ernst Zermelo:
https://commons.wikimedia.org/wiki/Fi...

Usain Bolt:
https://www.flickr.com/photos/khlav/3...

Argonne Universe Simulation:
   • Secrets of the Dark Universe: Simulat...  
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TIME CODES

00:00 Cold Open
00:29 History of Multiverses (CGP Grey)
02:33 Many Worlds Interpretation
03:56 Many Worlds (PBS Space Time)
05:31 Many Worlds Basics
07:37 Infinite Repeating Space
08:20 How Many Universes? (Numberphile)
13:27 Eternal Inflation
13:37 Inflation (Vsauce)
15:38 Eternal Inflation (Arvin Ash)
16:49 The Omniverse
18:15 Summary
18:56 Featured Comment