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A Dyson sphere around a black hole

(arxiv.org)
214 points SkyMarshal | 1 comments | 19 Aug 21 03:40 UTC | HN request time: 0.201s | source
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sydthrowaway ◴[19 Aug 21 05:47 UTC] No.28230748[source]▶
Why do we think Dyson spheres exist. It's completely conjecture.
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1. brador ◴[19 Aug 21 06:41 UTC] No.28231057[source]▶
It’s just solar panels around a star. Why would it not exist?