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This Black Hole Could be Bigger Than The Universe

Kurzgesagt – In a Nutshell · 9.6M views · 2024-05-21 · 11:44

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Overview

Kurzgesagt explores the idea that black holes could create universes and that we might live inside one. It builds up the physics of how density falls as black holes get larger.

On Hacker News

HN refers to it for the notion that big black holes are not very dense and that universes could form inside black holes.

Recommended by 1 HN people across 1 months · HN mentions 2024–2024

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What people said

danparsonson · 2024-06 · Recommendation

You might enjoy this if you haven't already seen it: [VIDEO] - TL;DW black hole density decreases with increasing radius, and the average density of the observable Universe is potentially greater than that of an equivalent-sized black hole, so maybe the whole Universe is inside one...

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techjamie · 2024-11 · Reference

> Maybe the big bang was a result of the birth of another black hole somewhere else, and that the rapid expansion rate of the early universe was due to the a huge amount of matter converted into dark energy by this black hole There is actually a theory that black holes create universes inside them, and that our universe could be underneath countless layers of black holes forming universes that form black holes ad infinitum. There is a Kurzgestadt video[0] that discusses the theory in more detail. Granted, this is in the realm of science where we have no idea if this is remotely true, but that's part for the course when black holes are involved. [0] [VIDEO]

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hnuser123456 · 2024-11 · Reference

I would think the most difficult part is figuring out if it's even possible to tweak the universe to be more favorable to life than it already is. Maybe it is possible to form more stars, but the same tweak would also form too many sterilizing supernovae? In any case, I'm inclined to believe that other universes exist simply due to how easy they are to find by extending a penrose diagram [1], and that the "natural selection" of "universe reproduction" eventually leads to a universe with parameters that enable life and consciousness. [2] Unfortunately, this method still can't tell us how often alternate universes are capable of life or how much the parameters can vary. [1] [LINK] [2] [VIDEO]

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