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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: 0.236s | source
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dcolkitt ◴[19 Aug 21 11:54 UTC] No.28232703[source]▶
The paper derived results for stellar mass black holes, but why not do the same for super massive black holes at the center of galaxies?

Yes, this would be constrained to ultra-advanced type III civilizations. But it would let us search for ET civilizations across the entire universe, not just our own galaxy.

replies(3): >>28233324 #>>28233900 #>>28236074 #
1. mdaniel ◴[19 Aug 21 13:59 UTC] No.28233900[source]▶
In my mental model, if we built a structure around any black hole, let alone a supermassive one, I kinda doubt we'd need to go searching for other civilizations to tell them we exist and have The Knowledge