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From: Python <python@invalid.org>
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Subject: Re: Space-time interval...
Date: Mon, 12 Aug 2024 13:35:15 +0200
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Le 12/08/2024 à 11:27, M.D. Richard "Hachel" Lengrand a écrit :
> What is the space-time interval?
> To describe it, mathematically, and not semantically,
> 
> because it may be an abstract construction requiring a complex number, 

You do have issues with complex numbers too (and linear equations, and
differential calculus, etc.) I know.

Anyway complex numbers are useless here. For once your are right on
something. But that stops there.

> we use the formula ds²=dl²-dt².
> 
> That doesn't make the "thing" much clearer.
> 
> We can then set ds²=dl²+i²dt²
> 
> But that doesn't make things any less clear.

https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_Introductory_Physics_-_Building_Models_to_Describe_Our_World_(Martin_Neary_Rinaldo_and_Woodman)/24%3A_The_Theory_of_Special_Relativity/24.06%3A_Lorentz_transformations_and_space-time

> I suggested setting fire to all that, not to bother with it anymore, to 
> leave the student alone for a while, and to never again use this 
> ridiculous, heavy and cumbersome notion in special relativity.
> We don't have it, and that's also what's terrible, despite the cries of 
> some aficionados who have no need for it.
> 
> So why this stupid fanaticism?
> Stockholm syndrome? The persecuted ends up adoring and glorifying his 
> tormentor?
> What's the point of all this?

You fail to understand because you are 1) an imbecile and 2) a stuffed
shirt, a pompous infatuated cretin.