Talks to Watch

The Fermi Paradox: Dark Forest Theory

412K views · Jan 27, 2019 · 17:55 · 2 HN recommenders · 4 mentions · discussed 2019–2024

Isaac Arthur examines the Dark Forest theory, Cixin Liu's proposed solution to the Fermi Paradox in which civilizations stay silent and may destroy any that reveal themselves. He tests the theory's underlying assumptions and arguments.

Why Hacker News points people here: HN commenters point to it as a well-argued rebuttal of Dark Forest axioms, and recommend his wider Fermi Paradox series.

“His entire library on the Fermi Paradox is worth watching.”HN comment, 2024

What Hacker News said 4

Strongly recommendscletusMay 2024

“His entire library on the Fermi Paradox is worth watching.”

Thorough treatment of why hiding a civilization is unlikely

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A lot of thought has gone into this and other possible explanations. Isaac Arthur, of course, has an excellent video [1] on this issue. His entire library on the Fermi Paradox is worth watching. The short version of why this seems unlikely is that there really is no hiding a K2 civilization for many reasons. For example, access to this much energy and having a megastructure as large as the Solar System (give or take) would allow you to create incredibly high resolution telescopes (with an without interferometry). But consider this: if you, as a spacefaring civilization, want to be left alone, the best way to do it is to make sure nobody comes into your neighbourhood. If you "hide" that may happen accidentally. Isn't it better to advertise your presence and otherwise keep people away to avoid unintentional conflict? [1]: this video

in “Seven Dyson Sphere Candidates” · view on HN
Recommendssimion314Feb 2019

“it challenges with good arguments the axioms in The Dark Forest.”

More optimistic take challenging Dark Forest axioms

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This video gives a more optimistic perspective, this video it challenges with good arguments the axioms in The Dark Forest.

in “Hayabusa-2: Japan Spacecraft Touches Down on Asteroid” · view on HN
Recommendssimion314May 2019

“made some good points, mainly finding problems with the axioms”

Critiques the axioms behind the Dark Forest conclusion

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I also had a similar feeling after finishing the book, this video this video made some good points, mainly finding problems with the axioms so it convinced me that the conclusion in the book is probably wrong since the axioms are probably not true.

in “The Dark Forest Theory of the Internet” · view on HN
Cites ityoz-yJan 2021

“the Dark Forest Theory doesn't hold agains much scrutiny”

Rebuttal of Dark Forest theory

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The books and all are nice but the Dark Forest Theory doesn't hold agains much scrutiny. Among other reasons because if that were true we would be already dead. this video

in “Have we already been visited by aliens?” · view on HN