Cosmic Coalescence.

Could it be said that the origin of motion is the Big Bang? Through a cosmological lens, the short answer is yes. Cosmologically speaking, the Big Bang marks the beginning of the universe and is often considered the origin of many things, including the motion of celestial bodies in the universe. The expansion of the universe that started with the Big Bang is still ongoing and is the reason why galaxies, stars, and other celestial objects are moving away from each other. So, in a sense, the Big Bang is intimately connected to the motion of matter in the universe. Now some will argue that while the Big Bang set the stage for motion in the universe, it is not the only factor that determines motion and that other factors such as gravitational forces, electromagnetic forces, and the properties of matter also play important roles in determining the motion of objects in the universe. I say hold your horses because all the various forces and properties of matter in the universe are different aspects of the same single underlying causation. While it is correct that there are several unifying theories such as string theory, the electroweak theory, grand unified theory, quantum field theory, loop quantum gravity, conformal field theory, and others, the current thinking is that there is no definitive theory that unifies all of the fundamental forces of nature. As usual it will be appreciated that I do not subscribe to this notion for two reasons. Firstly, there is only one theory. Secondly, there is only one theoretical purpose. What I mean by this is that the Big Bang is a synonym for BioDiversity and that BioDiversity is a synonym for Self-Differentiation. But that's not all because this doesn't address the why of the Big Bang, BioDiversity, or Self-Differentiation which is two-fold in nature: (i) it is not good for one to be alone, and (ii) it is very good to be able to experience companionship, also known as love. Knowing this we arrive at a good understanding about the true origin of motion.
~ Wald Wassermann, Physicist