Amid the swirling vastness of galaxies, each a cosmic city of stars and planets, the silence raises a compelling question: could the very nature of galaxies themselves hold the key to why intelligent life remains unseen?

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Credits:
The Fermi Paradox: Galactic Great Filters
Episode 484; January 30, 2025
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Phase Shift, "Forest Night"
Chris Zabriskie, "Unfoldment, Revealment"
Stellardrone, "Billions and Billions"