New technology required
Radio waves? Radio waves? Surely we should not be thinking about these for any meaningful chance of communications across the vastness of the universe. The speed of light is just too, too slow.
Imagine for some peculiar reason America had never been discovered but our modern civilisation is continuing on communicating by radio.
Don't you think we are more like native Americans sitting on the edge of the Atlantic, looking out over its vastness, thinking, maybe there's someone out there. Then trying to communicate with them by sending up smoke signals.
I bet that there if there are civilisations out there in the universe, they are definitely not communicating by radio waves. We, just like the Native Americans , must wait until some hitherto undiscovered means of communication is developed.
To the scientists out there, please hurry up and develop it, as I am dying to know whether we are alone will not.