Civilizations at the End of Time: Black Hole Farming

Isaac Arthur · 934K views · 2016 · 36:06

Open on YouTube

Cosmology & astrophysicsFuturism & technology and societyexplainer

Why Hacker News recommends it

HN points to it for black hole energy and colonization ideas and recommends the whole channel.

What it is

An Isaac Arthur episode on civilizations in the dark, post-stellar universe, including black hole farming, accretion disks and the Penrose process as energy sources.

Recommended by 4 HN commenters across 4 different months, 2018 to 2023.

What Hacker News said

Strong rec ajuc · 2022-05 · on “Can we make a black hole? And if we could, what could we do with it?”

Some other uses of black holes: - space propulsion [LINK] - colonization and energy source [this video] - weapons [LINK] I highly recommend the whole channel.

Recommends yourapostasy · 2019-10 · on “Not long ago, the center of the Milky Way exploded”

My go-to entry point for exploring those kinds of questions was Isaac Arthur. He goes into the Kardashev scale [1], dying Earth [2], dying stars [3], farming black holes [4], and going past iron stars [5]. A Boltzmann Brain's description bears remarkable similarity to the Judeo-Christian concept of God before time begins, and has been fertile ground for ruminations [6], though none with any verifiable claims backing them in our current knowledge of physics [7]. Now if we could only restructure our implementation of capitalism to be pinned to advancements towards resolving physics questions to survive those kinds of timescales and challenges instead of locked down to a single planet's worth o

Recommends cletus · 2020-05 · on “Timeline of the Far Future”

Mandatory Isaar Arthur links: - Civilizations at the End of Time: Iron Stars [1] - Civilizations at the End of Time: Black Hole Farming [2] - Boltzman Brains and the Anthropic Principle [3] [4] [1]: [LINK] [2]: [this video] [3]: [LINK] [4]: [LINK]

Recommends lvncelot · 2021-08 · on “A Dyson sphere around a black hole”

I'm pretty sure you're referencing this video: [this video] But on the off-chance you're not - and for everyone else who's intrigued by this comment's concepts - I can recommend watching it.

Cites stcredzero · 2018-05 · on “No Thanks, Google. I'll Speak for Myself”

The ship has really already sailed on longform communication, perhaps out of laziness or cost/benefit. Really? I see a flourishing of detailed video content, much of which is interesting and fairly information dense. Examples: Civilizations at the End of Time: Black Hole Farming [this video] CGP Grey. Rules for Rulers [LINK] Granted, that these are really pointers to other sources, in many cases text sources. Cost/Benefit is a big factor! Remember: The street finds its own uses for things.

Cites cletus · 2021-04 · on “The Expansion of the Universe”

The visible light era of the Universe is relatively short compared to what comes after. People think of this as a long dark night. To some extent that's true. Another perspective is that this will be the Golden Age of the Universe [1]. [1]: [this video]

Cites cletus · 2021-07 · on “Kepler telescope glimpses population of free-floating planets”

> What's the point of interstellar colonization? Ultimately it's to claim matter, which is the ultimate limiting factor in how long a civilization lives. For example, you talk about engrossing digital worlds. Well, those worlds require energy and energy means matter. To be clear we're talking on truly staggering time frames here where a trillion years is a mere blink of an eye [1][2]. [1]: [this video] [2]: [LINK]

Cites cletus · 2022-06 · on “Amino acids found in asteroid samples collected by Japan's Hayabusa2 probe”

> Consciousness is an emergent property of computation It's interesting to see the negative comments about this here because I agree with you. "Consciousness" or even "sentience" is notoriously difficult to define. Even defining what an organism is isn't entirely obvious (eg some might consider a colony of ants or bees as being organism-like). Our views tend to be extremely human-centric because we can relate. I imagine once we actually invent an AGI many will debate if it's truly sentient or conscious for a long, long time afterwards. > Computation is more efficient in smaller, less massy media There are physical limits on computation. A smaller package ultimately has a lower limit. That al