"It has been determined, in fact, that the Copernican, Ptolemaic and even the Tychonic models provided identical results to identical inputs. They are computationally equivalent. It wasn't until Kepler demonstrated a physical observation that could show that the physical sun is directly involved in determining an orbit that a new model was required."
Theories can change. That is the nature of science, peer review and new observations. When the science on heliocentricity was developed, religion tried to warp reality as we know it and shove Galileo under a rug. Inevitably, reality won out, but not without cost. See famous story below:
https://en.wikipedia.org/wiki/Geocentric_model#Ptolemaic_mod...
E:
The important takeaway:
"It has been determined, in fact, that the Copernican, Ptolemaic and even the Tychonic models provided identical results to identical inputs. They are computationally equivalent. It wasn't until Kepler demonstrated a physical observation that could show that the physical sun is directly involved in determining an orbit that a new model was required."