Date: 26/02/2024 02:43:01
From: Tau.Neutrino
ID: 2129359
Subject: Expanding Universe

Has the rate of the expanding universe exceeded the speed of light?

If it has what is the speed of the universe now?

And what is the speed limit of the expanding universe?

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Date: 26/02/2024 06:55:45
From: Bogsnorkler
ID: 2129368
Subject: re: Expanding Universe

Tau.Neutrino said:


Has the rate of the expanding universe exceeded the speed of light?

If it has what is the speed of the universe now?

And what is the speed limit of the expanding universe?

Yes.
depends on how far away you are from Earth
I don’t think there is one.

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Date: 26/02/2024 07:48:26
From: The Rev Dodgson
ID: 2129380
Subject: re: Expanding Universe

Bogsnorkler said:


Tau.Neutrino said:

Has the rate of the expanding universe exceeded the speed of light?

If it has what is the speed of the universe now?

And what is the speed limit of the expanding universe?

Yes.
depends on how far away you are from Earth
I don’t think there is one.

If the universe is infinite then an infinite part of it is infinitely far away.

Moll can let us know what sort of infinity that is.

Of course, it may well not be infinite.

And the bits we can’t see may not operate to the same rules as the part we can see.

And calculating speed as change in distance/time doesn’t really work for big spaces.

And maybe space isn’t expanding, our rulers are shrinking.

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Date: 29/02/2024 22:48:51
From: esselte
ID: 2130703
Subject: re: Expanding Universe

Tau.Neutrino said:


Has the rate of the expanding universe exceeded the speed of light?

If it has what is the speed of the universe now?

And what is the speed limit of the expanding universe?

One is a rate, the other a speed.

Despite what you may have heard, no part of the universe has ever expanded or ever will expand at a “speed” greater than the speed of light. The speed of light is a hard upper limit on speed, as far as we know.

See Sean Carrolls blog

https://www.preposterousuniverse.com/blog/2015/10/13/the-universe-never-expands-faster-than-the-speed-of-light/

The expansion of the universe doesn’t have a “speed.” Really the discussion should begin and end right there. Comparing the expansion rate of the universe to the speed of light is like comparing the height of a building to your weight. You’re not doing good scientific explanation; you’ve had too much to drink and should just go home.The expansion of the universe is quantified by the Hubble constant, which is typically quoted in crazy units of kilometers per second per megaparsec. That’s (distance divided by time) divided by distance, or simply 1/time. Speed, meanwhile, is measured in distance/time. Not the same units! Comparing the two concepts is crazy.

More at the link

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