Why is the universe expanding?

[Alan Grayson]

One possible explanation is that it's finite in spatial extent and began with non-zero angular momentum. So the whole thing rotates, and expands due to centrifugal force. Data from the JWST suggests the universe as a whole is rotating. AG

[Cosmin Visan]

Because there are more and more consciousnessee, and the information in a volume is stored on the surface.

[Russell Standish]

If the universe is all that it is, then how can it be spinning? What
is it spinning relative to? Cf Mach's principle.


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[Alan Grayson]

On Monday, April 21, 2025 at 4:57:23 PM UTC-6 Russell Standish wrote:

On Sun, Apr 20, 2025 at 06:30:31PM -0700, Alan Grayson wrote:
> One possible explanation is that it's finite in spatial extent and began with
> non-zero angular momentum. So the whole thing rotates, and expands due to
> centrifugal force. Data from the JWST suggests the universe as a whole is
> rotating. AG
>

If the universe is all that it is, then how can it be spinning? What
is it spinning relative to? Cf Mach's principle.

That's a question that should be asked to astronomers who claim it might be rotating. Suppose the universe is spherically shaped and is a 4d surface on which the galaxies reside. Isn't there a central point, perhaps in a fifth dimension, which could be the center of rotation? AG 

[Brent Meeker]

On 4/21/2025 3:57 PM, Russell Standish wrote:

On Sun, Apr 20, 2025 at 06:30:31PM -0700, Alan Grayson wrote:

One possible explanation is that it's finite in spatial extent and began with
non-zero angular momentum. So the whole thing rotates, and expands due to
centrifugal force. Data from the JWST suggests the universe as a whole is
rotating. AG

If the universe is all that it is, then how can it be spinning? What
is it spinning relative to? Cf Mach's principle.

Mach's principle is already violated by gyroscopes. There is no delay as the angular momentum interacts with distant masses.  In GR rotation and acceleration are absolute; something that Einstein found disappointing since he admired Mach and hoped to verify his ideas.

Brent