posted on Sep, 30 2011 @ 02:41 PM
Some of the problems in detecting artificial satellites using radio waves...the speed at which they travel, for one: by the time SETI picked up the
signal, depending on where/ how far it came from could be from the tens to the hundreds of thousands of years old. Even if a far-away planet were
using these devices right now, their signal may not be picked up by us for thousands of years.
Basically, the probability for both civilizations surviving long enough for one to detect the other are slim, much less to be able to send some sort
The distances in space are so unfathomably massive...this is basis of my difficulty in believing in UFOs. Trying to find each other...finding a needle
in an ocean of needles is one thing, but being able to freeze time while you look is another.