Paul, Thanks for taking the first step to self-discovery and independence. Robert B I did however, in deference to your urgings, repeat my google search for 'aether' with results for the first five pages summarised as follows - But you asked about the properties of aether, yet you report finding nothing on them? ?... I am dissappointed that you don't seem interested in explaining your views to me. I am saddened that you choose not to read my views in GWW. Bob Sungenis and I wrote the book ? among other reasons ? so as to avoid incessantly repeating our beliefs. You prefer that I answer everything here piecemeal, at your whim. Sounds like you?re still in the garden of daisies. The free fall motion in your example is linear . That means the direction is constant. Is this also the case for the flyby? No. Nonetheless, an accelerometer on board the Rosetta vehicle will still show zero acceleration as explained above. I see. For you the flyby is both accelerating and not accelerating. Arguments based on logical contradictions are best left for MS; they have much more experience. And so, indeed, I take my leave. AMDG, Robert