She is complex only in her repeative effects.

My friendly critics will of course admit that there are two foci to any elliptical orbit. If one of these foci is important, why is not the other equally so? What is the cause of elliptical orbits if not that some doubly acting force, concentrated at two foci, is exerting its opposite influences on both masses, not on one. For this reason also it is inaccurate, because untrue, to say that the sun is at one of its foci. That informs that the sun’s centre is one of its foci, which is not true. The true focus, which only happens to be within the sun, because of the sun’s huge bulk, is the mutual gravitative centre of both sun and planet, or earth and moon.
If Newton had watched that apple compose itself from low potential gases and liquids to high potential solids, saw it fall, and still remained on his job watching it decompose back again into low potential gases and vapors as it arose, we might have had a complete law of gravitation which would have been a great aid in putting a much-needed foundation under the feet of science during these intervening centuries.
Newton, for example, would have solved the other half of the gravitational problem if he had found out how that apple and the tree upon which it grew got up in the air before the apple fell. I challenge the world of science to correctly and completely answer that question.
https://www.philosophy.org/new-york-times-articles.html