From Dysonian SETI to waste heat and galactic timelines, we explore why we haven’t found Dyson Spheres—and what their absence reveals about civilization.
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Credits:
Why Haven’t We Found Dyson Spheres Yet?
Written, Produced & Narrated by: Isaac Arthur
Music Courtesy of Stellardrone & Chris Zabriskie
Select imagery/video supplied by Getty Images, Jeremy Jozwik, Ken York, Sergio Botero
Chapters
0:00 Intro
2:41 What Could We Actually See?
9:11 The Timeline Problem
12:24 Looking Out Is Looking Back
17:42 The Dyson Dilemma
26:07 Alternative Paths: Civilizations That Don’t Expand
29:26 Energy, Efficiency, and the Problem of Waste Heat
33:21 Nebula
34:22 The Silence of the Spheres
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