I should add as possible implications: 1) An optical gravitometer?
.. one that may detect virtual photons (i.e. as an indicator of gravitons). If the mainstream is correct on gravitons, then detection of individual gravitons, although not prohibited by any fundamental law, would be impossible with any physically reasonable detector, due to the low cross section of gravitons with matter. It is possible that there is either a detectable reaction that creates virtual photons or that the graviton has "a messenger". Horace Heffner has posted that he thinks that the mediator of the gravitational force is a messenger graviton, i.e. virtual graviton, which is the analog of the vitual photon. This sounds logical to me. This experiment may indicate that whatever variety of virtual particle is being detected carries a gravitational charge. Jones

