On 7 January 2014 01:55, Edgar L. Owen <edgaro...@att.net> wrote:

> Brent,
>
> No it's not "an observation that the two twins are together at particular
> spacetime coordinates" because the spacetime t coordinates are different.
>
> Since the spacetime t coordinates are different WHEN are they together?
> Certainly not in a simultaneous clock time as proved by their differing
> clocks.
>
> When are they together Brent? Obviously in a present moment which is a
> kind of time that clearly is not the same as clock time.
>
> Each point in space-time can be assigned unique coordinates. It's only
when space and time are treated separately that we get apparently
paradoxical situations like clocks running at different rates.

Brent is right. They are meeting at a point in space-time which will has a
unique (x,y,z,t) position.

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