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Civilizations at the End of Time: Iron Stars

Isaac Arthur · explainer · Watch on YouTube

Cosmology & astrophysicsFuturism & technology and society

What it is

An Isaac Arthur episode on civilizations in the far future, past the Black Hole Era. It covers iron stars, Boltzmann brains, reversible computing and the idea of reversing entropy.

Why Hacker News recommends it

HN recommends Isaac Arthur as an entry point for far-future and thermodynamic-endgame questions.

  • 4 people recommended it
  • 5 different months
  • 0 strong recommendations
  • first 2017, last 2022

What HN commenters said

  1. “the some of the topics he explores are fascinating. I recommend starting with”

    Suggested starting point for Isaac Arthur's fascinating space and futurism topics.

    spiralganglion, 2018-09 · Recommendation · in “Ask HN: Favorite teachers on YouTube?”

  2. “The really neat part of the lecture is towards the end, in his description of time winding down into thermodynamic equilibirum”

    Lecture on civilizations surviving the black hole epoch and Boltzmann Brains.

    yourapostasy, 2018-10 · Recommendation · in “Astronomers Creep Up to the Edge of the Milky Way’s Black Hole”

  3. “Mandatory Isaar Arthur links”

    Part of a list of must-see Isaac Arthur videos.

    cletus, 2020-05 · Recommendation · in “Timeline of the Far Future”

  4. “Isaac Arthur explores ideas like these in his videos / podcasts, I enjoy listening to it.”

    Series on civilizations at the end of time the commenter enjoys.

    yreg, 2022-03 · Recommendation · in “Red Dwarfs Will Be Humanity’s Last Home Before the Universe Dies”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: iron stars, boltzmann brains, reversible computing, heat death, isaac arthur

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