On Friday, January 31, 2020 at 5:05:32 PM UTC-7, Lawrence Crowell wrote:
>
> On Friday, January 31, 2020 at 12:37:41 PM UTC-6, Alan Grayson wrote:
>>
>>
>>
>> On Friday, January 31, 2020 at 11:23:49 AM UTC-7, Lawrence Crowell wrote:
>>>
>>> This simultaneity is the Hubble frame.
>>>
>>> LC
>>>
>>
>> No Wiki article on the "Hubble frame" and no definition that I can find 
>> on Internet. What exactly is it? TIA, AG 
>>
>
> It is a frame where this gravitational redshift of CMB or equivalently a 
> time dilation of quantum oscillations that emitted this radiation is 
> homogeneous.
>
> LC
>

Wouldn't that be everywhere at rest wrt the CMB? AG 

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