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From: hitlong@yahoo.com (gharnagel)
Newsgroups: sci.physics.relativity
Subject: Re: SpaceTime
Date: Mon, 3 Jun 2024 01:36:45 +0000
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Richard Hachel wrote:
>
> Le 03/06/2024 à 01:22, hitlong@yahoo.com (gharnagel) a écrit :
> >
> >  One theoretical problem for tachyons is the purported possibility
> that
> > they cause violations of causality.
>
>  Physicists pose two problems, that of ignorance and that of arrogance.

Dr. Hachel represents those problems, too.

> They pose the problem of ignorance, because they do not understand at
> all the notion of anisochrony, which alone explains the practical 
> impossibility of exceeding the speed of light.

Dr. Hachel is exemplifying his arrogance, pretending that he is God.

> It's as absurd as looking for round squares and dehydrated waters.

And blatherating about irrelevant analogies.

> I repeat, it's not that it's technologically impossible, it's that it's
> 
> absurd.

“In order to attain the impossible, one must attempt the absurd.”
– Miguel de Cervantes

 “The most absurd and reckless aspirations have sometimes led to
extraordinary success.” -- Luc de Clapiers

“If at first the idea is not absurd, then there is no hope for it.”
-- Albert Einstein

So certain is Dr. Hachel of his pronouncement from Olympus :-)

"Doubt is not a pleasant condition, but certainty is absurd. --
Voltaire

> This would amount to assuming a speed faster than an infinitely fast
> speed 
> (if we correctly understand this notion which I already explained in 
> 1986).


Nope.  Consider synchronized clocks at x = 0 (t1) and x = L (t2).  A
pulse of particles passes x = 0 at t1 = 0 and passes t2 at time t2.

If t2 - t1 = L/c, then the particles are traveling at the speed of
light.  If t2 - t1 = 0, then the particles are traveling infinitely
fast.  Since t2 - t1 =0 is less than t2 - t1 = L/c, Dr. Hachel's
assertion is refuted.

> They pose the problem of arrogance becouse they insult instead of 
> thinking. 

> R.H. 

I'm afraid Dr. Hachel is guilty of not thinking correctly.