I have always been fascinated with this topic. Probably likely alien life exists. my concern is whether any of these SETI efforts will make it more likely the aliens could find us. I know we are already generating lots of radio and tv. If the answer is SETI does not increase the risk then I am fine. However I think the main focus on search for alien life should be defensive in nature.
God separated us far apart for a good reason. Or if there is no other life God created a vast universe to show us how special and rare we are.
What has always struck me as funny is that all the time we read, “This planet could have the ingredients to support life.......as we know it.”
Who is to say that life on any other planet may breathe argon, helium, nitrogen, or some other unkown gas??? They may be very comfortable in 400 degree temperatures...or -500 degree temps...They may eat rocks and crap dirt...
It is ridiculous to only relate OUR requirements for life to anywhere else....Unless we are looking for another place for us to go...
Just listening with radio telescopes shouldn't tip off the aliens that we're here.
Those "I Love Lucy" broadcasts though...