In Cosmology, C2=const is the Measure of Inertia, not Mass
Milan D. Nešić
Abstract
It is understandable that in 1916 Einstein was unable to explain his postulate c=const, that in the case of the lightning and the train that moves on the railway embankment he still tacitly implied that the inertial coordinate system which is at rest has advantage over the one in motion. In serious scientific journals, there are no tries of explanations of this postulate, but it is strange that even today, at popular lectures, Einstein's explanation is taken as valid. It isn't difficult to show that his explanation is not valid; it is difficult to find the right explanation without trying to form an alternative theory. The article is dedicated to this goal. The found explanation will also serve to explain, for example, the EPR-paradox without any “spooky action at a distance” or “hidden variables” (Einstein’s expressions). And this is not the only example where it can serve.