Re: SpaceTime

Ross Finlayson wrote:

>
On 06/02/2024 04:22 PM, gharnagel wrote:

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More invalid analogies.

Yeah, if you assume causality, then tachyons can't be fantastical,
they're only the result of something that is or did.
>
The neutrino physics are mostly about supersymmetry.

Nope.  Neutrinos are firmly ensconced in the Standard model of
particle physics, while supersymmetric particles are not.

If you assume lack of causality it's pretty easy to arrive at
itself.

That's the problem with the conventional view of FTL phenomena.
It comes from the Lorentz transform:
(1) dx' = gamma(dx - v dt)
(2) dt' = gamma(dt - v dx/c^2)
From that comes
dx'/dt' = u' = (dx - v dt)/(dt - v dx/c^2)
u' = (u - v)/(1 - uv/c^2)
u' becomes infinite when u = c^2/v, and infinity is a red flag
in physics.  It means that the math becomes useless at and beyond
that point.  Physicists, who should know better, have persisted
into that real and come up with all kinds of frivolous assertions
like time going backwards, negative energy, causality violation
and a "reinterpretation principle."