On Wed, Aug 30, 2017 at 12:28 PM, C. Berry <xxxxxx@gmail.com> wrote: > > So when new physics and new tech come along, it's exceedingly unlikely that > we'll throw out things like the main conservation laws; hence the skepticism > about the EmDrive. Rather, we'll find new domains where our existing > theories begin to diverge from observations, and we'll work out a still more > refined model of physics that explains those observations, but reduces to > Einsteinian physics in all the domains in which that already worked well. I sometimes wonder if "conservation of momentum" is a special case of "Conservation of X" Gravitics and M-drives and EM-drives and such like obey the larger rule.