On 12/21/2018 12:31 PM, [email protected] wrote:
On Friday, December 21, 2018 at 5:46:10 PM UTC, Brent wrote:
On 12/20/2018 9:09 PM, Jason Resch wrote:
> I am not advocating any global reference frame, just mentioning
that
> for a particular observe, they can define a present that works for
> them (in their own reference frame). From their point of view
they can
> consider themselves at rest (whether they are or are not).
They can define it in words, but can they define it physically.
Brent
They can measure the redshift in all directions, and if it remains
unchanged, they are at rest wrt frame of the CMBR. AG
Right. The CMBR defines (we think) a universal reference frame. But
that's not what Jason's talking about. He's saying a given person can
define a universe wide frame in which he is stationary.
Brent
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