Questions about Dark Matter and a New Possible Model Introduction

This paper will demonstrate the possibility of the existence of dark matter from astronomy, astrophysics, theoretical physics and give a new possibility that can explain the excessively fast orbiting of the outer stars of the Milky Way and other galaxy clusters. Explain the model. The size of the Milky Way is indeed not small in the universe, but we have no way of verifying the specific circumstances of the collision, because no matter the size of the colliding star, the conclusion still holds. But nobody have an ask. In my opinion, the dark mater may not be the only theory or the influence, of course, the possible nature of dark energy makes m2 no longer close to the center. And the model of the Milky Way is not enough in the Today’s theory