2 HN users recommended this explainer2 months2019–2021score 2.5
Years with an HN recommendation, 2007–2026
Recommended in Fermi paradox threads as a thorough and reasoned treatment of Dyson sphere detectability.
Isaac Arthur examines the Dyson Dilemma, the puzzle of why we see no Dyson spheres or megastructures if growth-oriented civilizations should build them. He covers detectability and whether such structures could hide.
“He describes the Fermi Paradox and related concepts 100x better than anyone else.” (HN, 2021)
If interested in this kind of thing, I always recommend Issac Arthur. He describes the Fermi Paradox and related concepts 100x better than anyone else. Some relevant ones: The Fermi Paradox Compendium [link] Fermi Paradox: The Dyson Dilemma v2.0 [this video] I believe he would say that there is no really good explanation to why we don't see other intelligent civilizations except that we are effectively the first (at least in our galaxy), and intelligent space-faring life is exceedingly rare. This is a similar conclusion to Robin Hanson here, but I think I think Issac Arthur does a better job of deeply explaining it. I think both would agree though.
Isaac Arthur's deep explanation of Fermi Paradox and Dyson sphere detectability
Check out the Dyson Dilemma for a well-reasoned theory as to why it is a high probability that there is no space-faring intelligent life anywhere in our galaxy or even perhaps our super-cluster. [this video]
Argues no space-faring civilizations are likely in our galaxy
See [1] and [2] where the idea of hiding a Dyson sphere is covered in depth. It essentially means breaking the laws of thermodynamics, specifically entropy. Hit and object with light from a star and it heats up. It radiates away that heat in a predictable way. [1] [this video] [2] [link]
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