I like this argument. We only had the ability to communicate at range slowly in the visible light spectrum until a few hundred years ago. Would we consider that

I like this argument. We only had the ability to communicate at range slowly in the visible light spectrum until a few hundred years ago. Would we consider that a worthwhile contact today? An alien race might not consider it worth communicating with someone who can't control gravitational waves. In theory an alien race would probably have gone through similar stages, though. If they really wanted to communicate with other races at any stage, they would hopefully understand that your best bet is to use repeating bursts in a multitude of frequencies, likely using fundamental constants as a starting point -- Carl-Sagan style.