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Subject: Space-time interval...
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Date: Mon, 12 Aug 24 09:27:04 +0000
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From:  Richard Hachel   <r.hachel@jesauspu.fr>
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What is the space-time interval?
To describe it, mathematically, and not semantically,

because it may be an abstract construction requiring a complex number, 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.

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?

R.H.