From: ABlainey@aol.com
Date: Sat Apr 26 2003 - 09:37:40 MDT
In a message dated 25/04/03 21:08:42 GMT Daylight Time, bradbury@aeiveos.com
writes:
> So if ETI are communicating they are likely doing it at high pulse
> rates (which almost all detectors we now use are unlikely to
> detect for say OSETI). In addition it seems possible, if not probable,
> that the frequencies may be high (UV to gamma) where we aren't
> currently listening. Finally, they aren't going to be sending
> these data streams at us -- all we will see is the spread of
> the lasers if we happen to be along the line of sight between
> them and someone they are sending the data to.
>
> Robert
>
>
>
This is what I see as very important in the detectable civilisations
argument. The most efficient way to communicate is point to point. Any
advanced civilisation trying to communicate over large distances would/should
be using this method. As we do when communicating with satellites, spacecraft
or intercontinental phone calls, etc.
Unless we are in the footprint or line of sight of a transmitter And are
actively searching in the frequencies being transmitted, then we aint gonna
find squat.
I could twiddle the knobs on a portable TV all day long, but it isn't going
to detect the constant phone calls my wife makes to her mother. Does that
mean that there is no intelligent life on the phone? well ok, in this case
probably :o)
Alex
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