Either the Catholic Church is infallible, or it isn’t. And by my saying the Church is infallible, I mean that its teachings are protected from error.
But if the Church is not infallible, then that means the Church’s own definition of infallibility could be… fallible.
Nevertheless, the Catholic Church could still be Christ’s original church. The Pope could still be the successor of Peter. The Church could still be guided by the Holy Spirit.
But maybe our understanding of infallibility has been too exaggerated over the years. We have very specific guidelines for how we are to know some teaching is actually, truly infallible. Sometimes, though, these guides have seemed to legalistic or too specific. How do we know the Pope will be protected from error when he addresses the entire Church in faith or morals, ex cathedra? How do we know a teaching is guaranteed true just because all or most of the bishops happen to be in agreement? Etc
Any serious thoughts?
EDIT: Sometimes I have been “tempted”

to think like some Christians do: They may acknowledge that the Holy Spirit has guided the church through the ages; they may say God has had a role in the office of the papacy, in the great councils of the church, in the formation of the scriptures, etc. But sometimes I think, like they do, that there is no strict guarantee of absolute certainty on a matter of teaching.