I like this approach much better, monitoring radio signals requires making huge assumptions about alien technology. It would only let us know about a civilization on the surface of a planet that uses energy, but that’s a much broader assumption of technological evidence than radio wave transmission.
We still would have no idea if alien dolphins with opposable thumbs are building cities in an ocean.
“We still would have no idea if alien dolphins with opposable thumbs are building cities in an ocean.”
And living in a steam punk society powered by geothermal activity.
Yes, exactly, good point. If it gets built, I’ll also be looking forward to any unexpected discoveries that almost always pop up when they build big new instruments. Who knows what it might be this time? Something jaw-dropping, I’m sure.