No one here seems to have thought of an obvious reason as to why we've not detected any gravitational waves, as yet. That is, we're probably too far away from the possible sources of gravitational waves. Even though we may need pretty extreme conditions to generate waves that are detectable, we might just be too far away from the sources of these waves and by the time the waves, if any, reach us, they maybe undetectable. Even with extremely sensitive instruments. We might never detect them on Earth....we may have to move a detector closer to the sources to find them. So...who's got a starship sitting in their backyard
