macroscopic world that we experience. Explanation of macroscopic phenomena such as a plant flowering or an animal moving was via a reduction to the physics of micro-corpuscles. Just as one could explain the working of a printing press by reducing it to its moving parts and their action upon each other, so one could explain the working of an animal by reducing it to its micro-corpuscles and their action upon each other. Within a mechanistic cosmos, there are no purposes or goals as such; everything