It doesn't matter what terms you use, actually it makes it worse. You said, "Incidentally, the Michelson Morley experiment failed because the aether moves towards the centre of the earth". Strike "aether" and replace the term with "dark energy" and you only compound your problem. "The Michelson Morley experiment failed because dark energy moves towards the centre of the earth" makes no sense whatsoever. It's so distorted that I wouldn't even know where to begin explaining the problem. The 'Hubble flow' is even worse still. Using 'quintessence' is no different than saying something is made of something. However, I do understand the generalizations you have made and why. Your authoritative tone is off the deep end.Using the word 'aether' is probably asking for trouble. I, perhaps, should have used 'dark energy' as a modern replacement or perhaps something akin to 'Hubble flow', or maybe 'quintessence'.