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352 points instagraham | 1 comments | | HN request time: 0s | source
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keyle ◴[] No.43533500[source]
Potentially a very dumb question, but seeing the difference between cyclones and hurricane on earth (clock-wise, anti-clock-wise)...

Does it mean that we are, potentially, on one of two poles(?) of the observable universe, if we're observing most galaxies around us rotating a certain way?

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fennecfoxy ◴[] No.43533969[source]
That would be super cool to find out! And then it also begs the question, is there something at the center that unites the two poles? If so then what is it!

It would also imply that our whole universe is rotating - the only reason this happens on Earth is because of our planets rotation and the Coriolis effect.

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thunder-blue-3 ◴[] No.43534093[source]
I've been following this news for the past couple of weeks-- in essence your statement is what they are hypothesizing, and that the "something at the center that unites the two poles" might be that we are within a black hole. https://en.wikipedia.org/wiki/Black_hole_cosmology for the curious.
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askonomm ◴[] No.43534210[source]
It was my understanding that if two black holes collide, they just form a bigger black hole, but we know there's a black hole in our universe, which then would mean that there's a black hole inside of a black hole that did not merge with the parent black hole, right? Is that something that is considered possible?
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blueflow ◴[] No.43534378[source]
The inner black hole did not come from the outside, it formed inside and if i had to guess, it is stuck in the inside together with all the other matter, unable to interact with the outside of the outer black hole.
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askonomm ◴[] No.43534431[source]
Just thinking about this infinite recursion gives me the mental equivalent of a stack overflow.
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blueflow ◴[] No.43535500[source]
I don't think it is infinite - each universe can only have that mass/energy that fell into the outer black hole in the parent universe. At some level you'll inevitably have black holes with universes that do not have enough mass to form another inner black hole.
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idiotsecant ◴[] No.43535798{3}[source]
How much mass is required to form a black hole in a new universe with perhaps different physical constants? It could be that 'ability to make black holes' is a prerequisite for successful universes in the way way that good genes are a prerequisite for successful organisms. The universes that fail to spawn black holes are 'dead ends' so any life is statistically likely to find itself in a black hole spawning universe.

Maybe there is an 'incentive' for universes to form with physical constants tuned to produce black holes with the available energy in that universe.

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1. IngoBlechschmid ◴[] No.43538892{4}[source]
This circle of ideals seems to be known as: https://en.wikipedia.org/wiki/Cosmological_natural_selection