posted on Aug, 24 2014 @ 05:18 PM
originally posted by: captainmjp
I also agree that at some point any advanced race did use electro-magnetic based communications at some point. I just find it highly improbable that
any such race developed close enough to us to ever be detected by such means.
Open your mind Horatio!
My mind is open, Hamlet.
Watch out for your uncle.
Your post above may be correct. On the other hand, our directed broadcasts of high powered radar waves would make it quite far indeed, possibly a
couple of thousand light years.
Any society that was using such radar 2,000 years ago or so would be detectable by us now. Of course, the use of even higher-power directed beams
would be more easily detected.
The downside is that such beams are directional and would have to be aimed at least toward our general vicinity for us to receive them. But if there
are enough civs out there using EM, the chances are reasonably good that we could.
I don't know everything. Basically, I know something about everything. Some of it is quite in-depth, some of it is quite shallow.
I made the comment to point out that you weren't taking into account the thousands of years light takes to get to a (relatively) nearby system from
here. Was I wrong?