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From: Python <python@invalid.org>
Newsgroups: sci.physics.relativity
Subject: Re: Space-time interval (2)
Date: Thu, 15 Aug 2024 17:16:18 +0200
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Le 15/08/2024 à 16:52, M.D. Richard "Hachel" Lengrand a écrit :

>> t_B - t_A=t'_A - t_B
> 
> Et voilà! Voilààààà!!!! Patatrac!! Voilàààààà!!!

The point is, whatever could be your opinion on this equation
(which does not matter, it can be proven consistent under assumptions
that you do not question), that when confronted with it you miserably
failed to understand what it means :

«  Eisntein est en train de dire que deux montres sont synchronisées si
    elles battent à la même vitesse (en se contrefoutant de voir si elles
    marquent la même heure). »

Translation : « Eisntein (sic) is claiming that two clocks are
synchronized if they beat at the same speed (without caring at all if
they look showing the same hour). »

Later you weaseled by pretending to have forgotten a question mark
at the end of your sentence. Which makes this even worse for you.

Ah, as a last nail in your coffin: this equation defines synchronicity
in a way that is 100% equivalent to the procedure Henri Poincaré
proposed.

Poincaré-Einstein: 1
Lengrand: 0