Why Gravity is not a Force

Against Gravity

The question has been raised in the comm box regarding Aquinas' proof from motion as to how an immaterial First Mover can affect anything material.  This asks for a physical explanation of a metaphysical relation.  The difficulty arises from Cartesianism which, if we may be unfair to Descartes for a moment, holds that life (the "soul" or anima) is a substance in itself.  This led to all sorts of problems now known as the "traditional" problems of philosophy, but are actually th...