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The only problem I have with the idea of SETI is the aliens would have to be pretty close to receive our message in our lifetime. Assuming they would return the call.:hmm:
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SETI isn't about contacting or even decoding the signals. It's set up to detect a signal and that's it. I realise that radio signals are subject to gravitational lensing and such, but there are still millions of stars within range where that lensing would be minimal. They've also only scanned maybe about 5% of the total sky around us. They're also looking into other communication methods that ET may be using other than simple radio waves and methods of detecting them as well. There is no definite and chances are slim, but right now, it's the best shot we have right now to make the greatest discovery mankind has ever made.
Sorry to dereail the thread.
