Unlike the standard picture where you go aristotle to ptolemy to copernicus to kepler to and all of these are just getting better and better, ding towards newton. It actually was no aristotle had had for that scheme. And there's a lot of different reasons why we had to reject the aristotelian world view. For me it's correspondence to the observations, right? Which our theory dependent. Thereare some things that aren't theory dependent, like how long it takes the sun to travel across the sky. That's not something it's like, oh, i'm so stuck in my paradime. You know what i mean?