Dyson Spheres

Isaac Arthur · 837.8K views · 2017-07-06 · 40:47

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Overview

Isaac Arthur examines Dyson spheres and swarms, including common myths and misconceptions. He covers uses such as interstellar travel, black hole generation, and computing large enough to simulate universes.

On Hacker News

HN references it in threads on megastructures, Kardashev civilizations and Dyson sphere detection, and recommends the channel for in-depth futurist content.

Recommended by 1 HN people across 1 months · HN mentions 2017–2022

Topics

Futurism & technology and society Cosmology & astrophysics

What people said

digitalronin · 2022-02 · Recommendation
There's plenty. The vast majority of the 'shell' would be solar concentrators - basically aluminium foil or something like it. You can make a LOT of that by dismantling a few asteroids, never mind a planet or two. Isaac Arthur's youtube channel goes into this in some depth (and is generally excellent, IMO). Here's an episode on Dyson Spheres: [VIDEO]
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cletus · 2019-03 · Reference
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] [LINK] [2] [VIDEO]
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stcredzero · 2018-03 · Reference
If you're going to be using artificial habitats to have more living space, 416 is a very small number. [VIDEO]
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Sources

Video by Isaac Arthur, played through YouTube.

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