LIGO detects gravitational waves!

[stevebowers]

Would it be possible to encode information using gravitational waves and send these messages in all directions across the universe? I was thinking about something like the Arecibo message. Would a civilisation like the builders of the Leviathan or the Gigasphere builders be able to do it? What about the Terragens?

Could a message that was send like that be received in a "readable" state even after billions of years?

I would think that the sort of metric engineering that can create a Void Factory or a Weylforge should be capable of producing gravitational waves; they need not be quite as powerful as these newly-detected ones, since one would hope that the receiving equipment would be far more sensitive than 21st century technology.

And it seems gravitational waves should retain some useful information after billions of years; after all, these waves contained information about the sizes of the colliding holes and the speed at which they collided. The Terragens will have numerous very sensitive detectors, including a system of linked detectors that work in concert with the Argus Array
http://www.orionsarm.com/eg-article/46f96c4a62839
and this system has no doubt detected some intriguing messages in the past.