Instaed of positing imaginary forces like gravity I don't understand why more research isn't focused on proven possibilities like sympathetic resonance or a greater than expected reaction of electromagnetic or nuclear forces? Gravity is two-hundred or so years old and still seems to be a word that describes a set of maths with as yet unknown causes. Not a particularly enlightening theory outside of pretty math that only a few understand. And if the imaginary elements turn out to be just that all we have is another attractive misleading research program added to a debate that again only a few people really understand. I don't get it at all.