Aristotle makes fun of the Pythagorean proposal that there might be a counter-earth orbiting on the other side of the sun, so it can never be seen. But if you t

Aristotle makes fun of the Pythagorean proposal that there might be a counter-earth orbiting on the other side of the sun, so it can never be seen. But if you think about it, that's only possible in a heliocentic worldview. Coperinicus, at least, believed that the Pythagoreans believed in heliocentrism: https://www.jstor.org/stable/228080?seq=1#metadata_info_tab_contents https://www.jstor.org/stable/228080?seq=1#metadata_info_tab_...