Occam Sock ’em
The limitation of Occam’s Razor:
Ancient cosmology, like Aristotelian physics, has become a modern archetype for ‘wrong’ science, primarily because in our present-day arrogance we have applied Occam’s razor retrospectively and concluded that those old astronomers were idiots. (Funnily, Occam himself never applied his razor to astronomy, so there we are: we’re better at being Occam than Occam was.) But this is tremendously unfair, because actually the ancients weren’t wrong, at least not in the sense we usually mean.
You can’t exactly blame [them], can you? To the naked-eye observer, it really does look as if the Earth stands still and everything else circles around it. We, who are so big on Occam’s razor, can hardly criticise the ancients for assuming this simplest of theories was the correct one. They saw what appeared to be the skies circling round the Earth. There was no good reason, at the time, to question this simple and elegant explanation of observed conditions.
From a very good article on how ancient cosmology shows how plausible wrong theories get perpetuated.