Chris Jackson @BigModernism Sedevacantist Thought Experiment: Retaining an Indefectible Church When the Hierarchy Defects vs. Are you prepared to deny Vatican I? Vatican I clearly teaches that popes will reign perpetually: "[T]he true doctrine concerning the establishment, the perpetuity, and the nature of the apostolic primacy. In this primacy, all the efficacy and all the strength of the Church are placed. (Vatican I, Pastor Aeternus, chapter 1)" (UnamSanctumCatholicm.com, "False Principles of Sedevantism (Part 1)).
Chris Jackson @BigModernism Sedevacantist Thought Experiment: Retaining an Indefectible Church When the Hierarchy Defects If every bishop with jurisdiction defects, and there’s no pope, how can the Church remain apostolic and indefectible? I take my best shot here: https:// open.substack.com/pub/bigmoderni sm/p/a-sedevacantist-thought-experiment?r=5mfttc&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true … 3:22 PM · May 29, 2025 · 1,496 Views