OH Dear Moderator in Heaven, please save us from ourselves. Man-up here and send the evil devils to their Hell. And send your experiment of a science forum without moderation down as well.
Hypothesis: There is gravitaitonal wave energy. It is quantified by the EFEs, and they are the best math we have to describe the effects of quantum gravity at the macro level caused by the gravitational energy density of space.
No one has ever observed curved spacetime and never will. It certainly has the smell of a myth if you judge by how its advocates on this board are intensively defensive, how they describe GR as geometry and math with no explanation of a physical mechanism, and how they depict anyone who wants to even talk about a mechanism as cranks and crackpots in a public forum. When civility is scoffed at by a few ranting defenders who refuse to let the other side go unharassed on a meaningless discussion board, it is a sure sign that there is something wrong in GR land.
Their rants seem to be intended to squelch any enthusiasm for a quantum gravity solution on the discussion boards. Never-the-less, there is clearly a huge effort within the scientific community tasked to piece together the quantum mechanism and to unite the forces of nature. The enthusiastic and intelligent people who have the sense to see through their smoke screen do so becasue they know about the ongoing advancing science, and understand that the ultimate direction may well be the quantum solution.
When you start out with a clear view of what the scientific community thinks and says, a one minute survey of the results of a Google search for "The search for quantum gravity" quickly shows how remote the anti-quantum gravity crowd is from the reality of the scene outside of an unmoderated discussion board.
Try this paper for example. It covers the scope of the search:*
http://arxiv.org/pdf/1010.3420v1.pdf
Section 1. The Quest for Quantum Gravity
Scientific discovery is like the mapping of unknown territory. Curiosity and the good book- keeping of scientific inquiry gradually revealed to us the ground nature put to our feet, and while some of our knowledge will need revision upon closer investigation, today we have access to highly detailed maps and guides of nature, backed up by so much evidence we are comfortable to build our lives on this territory. But our curiosity still drives us farther, again and again pushing the boundaries of the known, venturing out into the unknown.
There are two ways the expansion of scientific knowledge, the exploration of terra incognita, goes ahead. An experiment may test a previously virgin area and make an unexpected find, leaving it for the theorist to explain and make sense of. Or, a theorist may put forward a hypothesis and make a prediction, telling the experimentalist where to look next. In physics in particular, both has historically gone hand in hand, and still does. The theorist aims to make predictions for planned experiments, and the experimentalist will be interested in testing well-founded predictions offered by the theorist. Over the centuries, we developed methods and procedures that have proven useful in this process and that we rely on today, such as peer review and repeatability of experiments. Due to the well-demonstrated “unreasonable effectiveness of mathematics in the natural sciences,” [1] mathematical self- consistency of a theory is an essential ingredient assuring quality and success.
In the following, we will focus on one particular ongoing exploration at the frontiers of our knowledge: The quest for quantum gravity.
The paper goes on to address many aspects of the search for quantum gravity, and concludes with, "The quest for quantum gravity may proceed slowly and sometimes be frustrating, but the reward will be nothing less than a revolution of our understanding of space and time."
That was three years ago, and it is easy to keep abreast of ongoing developments in the field by reviewing conferences and papers.
Here as a more recent account from an international conference:
http://www.perimeterinstitute.ca/conferences/experimental-search-quantum-gravity-hard-facts
You can see that those here who want you to believe there is no quantum gravity have not stopped the professional community from their efforts. Decide for yourself about quantum gravity, and keep in mind that the effects are the same as curved spacetime, the EFEs work for both at the macro level, GR doesn't work at the quantum level, and the enthusiasm for QG is strong in the scientific community.