51 points

Weeeee!

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7 points

I don’t like your username, but I like your message.

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17 points

considers things moving at very close to the speed of light uses Newtonian mechanics

It’s an interesting idea but this is a pretty massive oversight.

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14 points

If it indeed rotates, this raises another question: What does it rotate around, i.e. where is the center of the universe? How does our position in the universe relate to this center, or which (known) structures have we observed there. Could it be the Great Attractor?

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5 points
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spiral ever increasing outward, wouldnt the center represent the big bang

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2 points

Because time isn’t linear or whatever and its still expanding (I have no idea what im talking about)

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2 points

If it’s flat, and not curved, I think the center would be everywhere?

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2 points

I can’t find any flaw in this. I was trying to think of it in any way other than having an actual center somewhere. This can be my model till I understand it better.

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1 point
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Is this maybe related to spin of particles that was considered to be “a kind of rotation momentum how it behaves mathematically but for all we know it does not literally represent any kind of rotation”…and it turns out it does in fact represent the fundamental rotation of the universe ?

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31 points
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If that is true maybe that means that it actually is finite and has a center. And the rotation and light speed put an upper bound on its size.

Then again the expansion of space doesn’t care about such mundane things as a cosmic speed limit so the universe rotation probably won’t either. Or the extents just slow down.

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26 points

And if everything is rotating, and most is rotating in the same direction, it means we’re probably in a black hole.

Science is going to be interesting during the next twenty years.

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21 points

Black hole cosmology makes the most sense to me. But what do I know, I’m just a burnt out stoner.

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1 point
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If we’re a “white hole” I guess it must’ve been one insanely gigantic object that collapsed with no other matter around it rendering it dormant.

Unless somebody knows why we wouldn’t see new violently hot matter the higher universe black hole is consuming spewing out into our universe if it were still active.

Where would it spew? There’s no center as I understand? Psyduck holding head

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6 points

Why would it mean that?

I’m honestly curious.

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28 points
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I’m completely a layman, so don’t take my word as fact. But currently there’s a trend in thinking that because more than half of the galaxies they’ve been measured all rotate the same direction (as opposed to all random directions that a uniform static bang should result in) then the universe started out spinning in that direction.

What starts from a very small condensed state, and expands rapidly while spinning in one direction? Black holes.

Black holes also go through a life cycle that’s pretty close to what we expect or universe to go through.

It’s a new thought, I’m not even sure how much evidence there is past the galaxyspinning evidence. But it’s interesting and has scientists thinking.

It also takes care of any “multiverse” questions, since black holes are already in a universe. Some of the holes could be pocket universes, and we could be in one, with black hole pocket universes of our own.

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1 point

Why would it mean that? And how can we be inside a black hole when we are not spaghettified?

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19 points

I think that if space itself is what is rotating, then speed of light limit does not apply. But if it’s everything in the universe orbiting, as it were, a central point, then it would.

But if it is space itself rotating, then that would suggest some objective frame of reference outside the universe. Wouldn’t it?

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4 points
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2 points

But if it is space itself rotating, then that would suggest some objective frame of reference outside the universe. Wouldn’t it?

Not necessarily. Just like space is growing without the need for an objective outside frame of reference, it could be rotating - the rotation is just relative to itself.

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1 point

I don’t think something can rotate relevant to itself. If all of reality was the earth, and nothing else, how can you tell if it’s spinning or not?

Please use small words if you try to answer this. I know a decent bit of applied physics, but once it turns to pure math, my head starts to swim.

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4 points

Wow, so maybe the universe really is centered around me after all. Take that, 1st grade teacher! j/k.

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3 points

I believe just the observable part is. Could be more.

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1 point

I thought the general consensus was that it IS finite and has a relative center point?

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6 points

Nah in the past it looked like a pretty homogeneous mass when zoomed out enough. I assume this center of rotation is no more of a “pure center of the universe” than our sun is.

I’d imagine its just a local maximum for gravity.

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1 point

No, the general consensus is that it seems to be infinite and has no relative center point.

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0 points

If that is true maybe that means that it actually is finite and has a center. And the rotation and light speed put an upper bound on its size.

Actually no, that would only be true if the universe was two-dimensional. The universe essentially curves back on itself. Kurzgesagt explained the two options of finite and infinity universes and this timestamp explaines the curving back: https://youtu.be/isdLel273rQ?t=120

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4 points

Kurzgesagt really like to present scientific speculations as fact.

We simply do not know whether the universe is finite or infinite. And so far no curvature has been observed. As far as we are aware it is flat.

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14 points
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Scientists propose a lot of stuff. A lot of these proposals are contradictory to each other.

Still cool.

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