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For a radio circuit to be established, it is necessary to generate a signal, transmit that signal through space, recieve that signal in a reciever sensitive enough to perceive that signal amidst the "noise" (self-generated interference) that every receiver generates, or the radio noise that comes from natural cosmic sources (or, in some cases, man-made noise). That noise has to be overcome by making the signal strong enough to overpower the inherent noise of the receiver, which is the result of the laws of physics and can be minimized to some degree, but not eliminated. Additionally, the farther the signal travels through space, the more of it is lost through spreading out - a problem called "path loss." It is why distant headlights are more faint than close ones. So a communications circuit, whether man made or one being conducted with extraterrestrials, has to overcome these two problems - receiver noise and path loss.
It just seems stupid to me that we spend all that money on those things and they could be communicating with different technology.
Originally posted by paranoiaFTW
Couldn't there be some unknown energy that they communicate with, and non of our censors pick it up? Or maybe they just communicate with thought. It just seems stupid to me that we spend all that money on those things and they could be communicating with different technology.
Originally posted by wiredamerican
A tech exists in my thoughts
Originally posted by paranoiaFTW
Or maybe they just communicate with thought.