Vareck Bostrom wrote: > FWIW, once one of the members of a Klemperer Rosette loses its perfect > geometric position with respect to the others the "flying off in all > directions" happens very quickly and it's only a few orbital periods > before it is clearly destabilized. I'm happy to believe that you are correct. I no longer possess the math skills to work this out :-) At any rate, this reduces to a discussion about the potential reaction time of a technological system that is well beyond our current conception. > So the existence of planetary drives might > actually be in heavy use throughout the Imperium. Of course, this impinges on the whole near-C rock discussion which has wracked this list from time to time. I prefer to 'kick the ball down the road' and push the whole problem out into the not-easily-imagined post-Traveller Universe. YMMV. Jonathan