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Many believe civilizations which survive the challenges of technology will inevitability build Dyson Spheres encompassing their entire sun. So how do we find these megastructures if they exist?

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▬ Dyson Sphere Search Chapters ▬▬▬▬▬▬▬▬▬▬
0:00 Intro
02:11 What is a Dyson Sphere?
08:00 Can we see a Dyson Sphere?
15:19 (TEA) Time Elapse Argument
19:35 Couldn’t such a powerful civilization hide their Dyson Sphere from us?
24:44 Wouldn’t a better power supply than fusion eliminate the need for a Dyson Sphere?
30:41 Where should we be hunting for Dyson Spheres, or groups of them?
34:05 What about all those Voids, Dark Matter, and stuff like that? Couldn’t those be Dyson Spheres?

Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/the-fermi-paradox-searching-for-dyson-spheres
Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/the-fermi-paradox-searching-for-dyson-spheres-narration-only

Credits:
The Fermi Paradox: Searching For Dyson Spheres
Science & Futurism with Isaac Arthur
Episode 393, May 4, 2023
Written, Produced & Narrated by Isaac Arthur