[Apogee]

Well, I was not thinking of the disciplinary aspect so much as the dogma aspect. The poster to whom I was replying seemed to say that church dogma was infallible, as well as certain writings of the pope, whether ex cathedra or not (if I have misinterpretted this, I am happy to recant).
In the case of the church dogma that the sun revolved around the earth - an Aristotelian notion brought down by Aquinas and incorporated into church teaching - the dogma was clearly wrong.