In a now-locked thread, @MiserereNobis  made the following remarks, which I would like to open for discussion (the thread was locked for other reasons, so I don't think I'm circumventing the mods). Quite true.  But then, the claims from our Catholic brothers and sisters regarding the papacy are, in many ways, also "grandiose." I think there are some significant differences.  Two categories come to mind: 1. Difference in Titles and Apostleship The leader of the Catholic Ch