 But what if we abstract away from questions of physical motion? What if we consider motion within a much more abstract context: for instance, can the motion of a mathematical point through space be considered in the Aesthetic? Kant makes it clear that this remains empirical because the concept of motion itself is empirical, and so should still be deferred to the Metaphysical Foundations. Indeed, the latter begins with a consideration of motion in abstraction from various physical questions like the mass of the objects and then slowly progresses by adding further physical (or empirical) elements.