[ExI] Will Advanced Civilizations Ever Build Dyson Spheres?

[BillK]

On Sat, 2 Nov 2024 at 07:24, Anton Sherwood via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> Does this article assume a solid sphere?
> That of course was not Dyson's idea.
>
> A Dyson sphere doesn't happen all at once, it is the limit of
> incrementally capturing more starlight.  Moving a big ice moon away from
> its primary would be less incremental and more risky.
> *\\*  Anton Sherwood  *\\*  www.bendwavy.org
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Building Dyson structures around a star will require a huge amount of material.
(Stars are very big!).
And it has to be metal-rich material.
Dismantling asteroids and even planets would be necessary just to get
a thin partial shell around a star.
This would also have risky orbital effects.
I think that's why they suggest pushing planets and large asteroids
into the habitable zone and doing terraforming might be easier.
(though still an enormous task).

BillK