ftl SETI

[hwitter11@gmail.com]

There must be some work done superimposing disparate swaths of sky to
look for identical, simultaneous signals. Anyone know?

[Uncle Al]

hwitter11@gmail.com wrote:
>
> There must be some work done superimposing disparate swaths of sky to
> look for identical, simultaneous signals. Anyone know?

Cosmic background radiation maps show no self-similarity at any
scale. Visible searches observe the foam-like structure of cosmic
mass distribution (a few amusing publications about "quantized"
distances thereform) but no self-similarity any scale.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2

[Gerry Quinn]

In article <1172030596.827535.251330@q2g2000cwa.googlegroups.c om>,
hwitter11@gmail.com says...
> There must be some work done superimposing disparate swaths of sky to
> look for identical, simultaneous signals. Anyone know?

Radio signals wouldn't stay simultaneous unless they were being aimed
intentionally at Earth, and intended to be simultaneous for some
reason. That is true irrespective of any FTL travel ability the
senders might or might not have.

- Gerry Quinn

[scerir]

hwitter:
> There must be some work done superimposing disparate swaths of sky to
> look for identical, simultaneous signals. Anyone know?

No, and I do not know what ftl SETI is, but try this link
http://pil.phys.uniroma1.it/twiki/bin/view/Pil/ComplexAstro
and many papers by L.Pietronero (and perhaps Mandelbrot)
http://pil.phys.uniroma1.it/twiki/bin/view/Pil/LucianoPietronero
about fractals and complexity in the universe, see in ArXiv.

[Igor Khavkine]

On 2007-02-21, hwitter11@gmail.com <hwitter11@gmail.com> wrote:
> There must be some work done superimposing disparate swaths of sky to
> look for identical, simultaneous signals. Anyone know?

This has nothing whatsoever to do with SETI (trying to detect
*correlated* signals requires detection of *some* signals first). But,
there are lots of "unintelligent" signals that we get from the sky. One
of the important ones is the Cosmic Microwave Background (CMB)
radiation. It tells us, for instance, about the temperature of different
parts of the universe. What we see is that different patches of the
universe, are all at approximately the same temperature (variation about
the mean is on the order of 10^-5). This goes even for patches that are
not currently in causal contact (such patches are those that are
separated by more than about one degree). So, in a sense, these
temperature readings are (nearly) "identical, simultaneous signals". The
most likely explanation for this phenomenon, is that at the time of
thermal equilibration, these patches were in fact in causal contact. So,
these observations have nothing to do with FTL either. But this idea for
their explanation was one of the main reasons behind the development of
inflation, which is an important theory in modern cosmology.

Hope this helps.

Igor