[aruanan]

"Think of it: Gravity waves come to us from the edge of the universe, from the beginning of time, unchanged," he said. "They carry completely different information than electromagnetic waves. Perhaps the most exciting thing about them is that we may well not know what it is we're going to observe. We think black holes, for sure. But who knows what else we might find?"

If gravity propagates at the speed of light, we wouldn't be able to detect gravity waves "from the beginning of time". If gravity propagates considerably faster than the speed of light, we certainly couldn't detect anything from the beginning of time, though in either case one could detect something from the edge of the universe, providing there actually is an edge. If there were an edge, though, it wouldn't be the same thing as the beginning of time.

[RightWhale]

Get this: Everything you see and everything you are is the gravity wave from the event at the beginning of the universe crossing in constructive and destructive interference with itself from all directions RIGHT HERE! Unless you wish to consider the 4-plex manifold. In that case you can add RIGHT NOW! Like selling used cars. :)