One could state that matter always existed but motion did not. Yet, the idea of matter without motion is absurd and without all precedence. Motion is the mode of existence of matter. Never anywhere has there been matter without motion, nor can there be. Matter without motion is just as inconceivable as motion without matter.
Motion is therefore as uncreatable and indestructable as matter itself.
It just cannot have any cause at all in the universe of the given model, nor, of course, can that paramount occurrence be the effect of any prior cause. It cannot be a scientific assumption. The former connotes the operation of a creator or external causal agency, and the latter a completely unstructured state. Alas, the recent literature on some versions of quantum cosmology contain inappropriate uses of these locutions which may suggest that this theory abets creationism. For example, such physicists as Hartle and Hawking and Vilenkin speak misleadingly of certain primordial physical states as nothing , even though these states are avowedly only a realm of unrestrained quantum gravity, which is a state with no classical space-time.