This can have several reasons:
1 |
There's
no civilization within 55 Ly.
|
2 |
There is a civilization
within a 55 Ly radius that is less developed than
our civilization and does not yet know
electromagnetic waves.
|
3 |
There is a civilization
within a 55 Ly radius that is more advanced than
our civilization and no longer uses
electromagnetic waves.
|
4 |
There's a civilization
within 55 Ly, but it won't communicate.
|
5 |
With SETI we hear in the
wrong place, because if a physics for
interstellar space travel exists (Axiom 6.6.1),
then there is also a message transmission on this
basis, something like hyper radio. And this is
certainLy NOT electromagnetic and limited to the
propagation speed of EM waves. |
SETI therefore behaves as if you are waiting for drum
signs while the others are on the phone or in radio
communication.
SETI has so far made it possible to study an area with a
radius of 55 light years. There are over 1,000 suns in an
orbit of 55 light years.
The onLy case left is where a civilization hundreds of
years ago, a few hundred or a thousand light years away,
would have sent out a signal that would have reached us
today. That would be an incredible stroke of luck.
We can rather assume that an interstellar message
transmission, based on multidimensional physics, exists
and is used by spacefaring species. We have to look for
such a physics in order to communicate with another
civilization in the galaxy.
Supplement
One of the main problems of radio astronomy is that the
intensity of the signals decreases in square to the
distance. This means that at a distance of 55 light years
the intensity of common radio, radio, tv, etc. is the
same. signals so low that they can no longer be measured.
This effect causes a deterioration in the probability of
receiving a "normal" signnal from another
civilization. However, there are still strong enough
signals left, such as the message sent via the Arecibo
antenna in 1974 or the wow signal. Such signals are also
sought.
Therefore, the intensity effect does not affect further
considerations on SETI, distances and time periods.
Therefore, one can consider the previous SETI
considerations as "best case scenariao"
Due to the consciousLy transmitted signals in the last
decades we can say that in our immediate
environment (<20Ly) there are no
civilizations that can or want to communicate with us via
electromagnetic waves or are able to do so.
|