2014/1/17 Edgar L. Owen <[email protected]>

> Quentin,
>
> No, not at all. They are NOT at the same spacetime coordinates
>

Yes they are...


> because their clock time t values are different.
>

http://en.wikipedia.org/wiki/Coordinate_time

http://en.wikipedia.org/wiki/Proper_time

Quentin


>  Only if their clocktime t values as well as their x,y,z values were the
> same would they be at the same spacetime coordinates. I hate to say it but
> that is quite obvious....
>
> But they are in the exact same p-time present moment because they can
> shake hands and compare clocks....
>
> Edgar
>
>
>
> On Friday, January 17, 2014 11:24:33 AM UTC-5, Quentin Anciaux wrote:
>>
>>
>>
>>
>> 2014/1/17 Edgar L. Owen <[email protected]>
>>
>> Stephen,
>>
>> Your argument is fine. It's standard GR. BUT for the nth time it's
>> talking about CLOCK TIME simultaneity, rather than the present moment of
>> p-time. It still doesn't seem to register that there is a difference even
>> though the fact of the twins meeting with different clock times in the SAME
>> present
>>
>>
>> They are at the same present moment *because* they are at the same
>> spacetime coordinates, that's the only and unique reason as to why they can
>> meet at that moment, there is absolutely no need of an unexistant p-time.
>>
>> Quentin
>>
>>
>> moment clearly demonstrates they are different.
>>
>> You can argue no inherent absolute clock time simultaneities till the
>> cows come home and I will agree EVERY TIME.
>>
>> But that just ain't the p-time present moment as the twins prove over and
>> over ....
>>
>> Edgar
>>
>>
>>
>> On Thursday, January 16, 2014 11:13:14 AM UTC-5, Stephen Paul King wrote:
>>
>> Dear Edgar,
>>
>>   I already wrote up one argument against the concept of a universal
>> present moment using the general covariance requirement of GR. Did you read
>> it? It is impossible to define a clock on an infinitesimal region of
>> space-time thus it is impossible to define a "present moment" in a way that
>> could be "universal" for observers that exist in a space-time. There are
>> alternatives that I have mentioned.
>>    The non-communicability of first person information, that leads to the
>> concept of FPI, is another argument that may be independent. (I am not so
>> sure that it is truly independent, but cannot prove that the intractability
>> of smooth diffeomorphism computations between 4-manifolds is equivalent to
>> first person indeterminacy.)
>>    If the information cannot be communicated then it also follows that
>> there cannot exist a single computation of the present moment information.
>> Your premise falls apart. There is an alternative but it requires multiple
>> computations (an infinite number!). Can you handle that change to your
>> thesis?
>>
>>   Frankly, your arguments are very naive and you do not seem to grasp
>> that we are only responding to you because we try to be nice and receptive
>> in this list to the ideas of members. There does reach a point where the
>> discussion becomes unproductive. It has been useful for me to write
>> responses to you as it improves my ability to write out my reasoning. I
>> need the exercise. :-)
>>
>>
>> On Thu, Jan 16, 2014 at 10:59 AM, Edgar L. Owen <[email protected]> wrote:
>>
>> Stephen,
>>
>> What is this magical FPI that tells us in this present moment that there
>> is no such present moment? What's the actual supposed proof?
>>
>> Edgar
>>
>>
>>
>> On Thursday, January 16, 2014 10:17:31 AM UTC-5, Stephen Paul King wrote:
>>
>> Dear Edgar,
>>
>> ...
>
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-- 
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Batty/Rutger Hauer)

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