For the first time I am getting a handle on Aristotle's Physics. It seems that he saw the outermost sphere as churning everything within, so that everything would kinda settle down if outermost sphere were not moving. If this interpretation is correct, then I can see how Saadia came up with one of his arguments for the existence of God. For if the universe is finite and the amount of energy is finite, then eventually it's gotta run outa ooompf. But it hasn't yet done so, so cosmos is finite in age. But then again, wouldn't this sort of argument be deistic? And doesn't it require momentum? That would make my take anachronistic (or maybe Sadia was just ahead of his time). Also, Ari's conception of the spheres as churning explains one aspect of movement. From our mundane perspective, spheres cause sideways movement (stars and planets as well as sublunary movement inasmuch as on horizontal plane). Up and down is caused by tendency toward natural place. ...
Commentary and discussion regarding science, faith and culture by Leo White