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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: sci.physics.relativity
Subject: Re: [SR and synchronization] Cognitive Dissonances and Mental Blockage
Date: Thu, 29 Aug 2024 13:10:14 +0300
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On 2024-08-29 06:10:54 +0000, Thomas Heger said:

> Am Dienstag000027, 27.08.2024 um 12:25 schrieb Richard Hachel:
>> Le 27/08/2024 à 07:31, Thomas Heger a écrit :
>> 
>>> The very word 'relativity' requires mutually symmetric perspectives.
>> 
>> Absolutely.
>> 
>>> Since both perspectives are of equal rights, we need to accept both 
>>> views as valid, hence need mutually symmetric perspectives.
>> 
>> Magnifico! Wunderschön !!!
>> 
> Thanks.
> 
> But this is obvious and certainly not disputed.
> 
> But Einstein, however, had not written about a symmetric system of 
> clock synchronization.

If clock A is synchronized to clock B according to Einstein's creterion
the clock B is synchronized to clock A. Although the procedure is not
quite symmetric the synchronity defined by it is.

> Instead he used something, one could call 'external time' (kind of 
> 'true time').

He ded not use what cannot be used.

-- 
Mikko