What Caused You to Leave Mormonism? - Live Q&A with Kolby, Britt, and John | Ep. 2031

Why Do Members Leave Mormonism? New Research on Faith Crisis and the "Shelf-Breaking" Phenomenon

When a lifetime member of The Church of Jesus Christ of Latter-day Saints walks away from their faith, the decision rarely comes as a sudden bolt of lightning. Instead, according to recent discussions on the Mormon Stories Podcast, departures typically accumulate like weight on a shelf, item by item, until the structure finally collapses. Understanding what causes people to leave Mormonism matters not only to scholars and religious researchers, but to the thousands of families navigating faith transitions each year.

The concept of "shelf-breaking" and the emotional aftermath of leaving Mormonism has become central to how both researchers and former members understand religious disaffiliation. A live Q&A episode featuring panelists Kolby, Britt, and host John Dehlin gathered data from approximately 6,000 respondents across Reddit, YouTube, Facebook, and Instagram to examine the specific triggers and emotional trajectories that characterize the exit process. The findings reveal a more nuanced picture than simple loss of belief, pointing instead to competing priorities, psychological resilience, and the gap between what members are taught and what historical evidence shows.

The Shelf Metaphor and Cognitive Dissonance

The "shelf" concept originated not in academic literature, but from Camilla Irene Kimball, wife of President Spencer W. Kimball, in a 1975 Ensign article. The metaphor describes how believers mentally compartmentalize doctrinal problems, historical discrepancies, and contradictions, placing them on an imaginary shelf rather than confronting them directly. This coping mechanism relies on what researchers call "thought-ending clichés": phrases like "it will be revealed in the next life" or "God's ways are not our ways" that shut down critical thinking before cognitive dissonance becomes unbearable.

The panelists noted that intelligent, educated people are often better at constructing elaborate mental frameworks to defend faith claims. Rather than weakness, apologetic sophistication can become a trap, the more articulate one's justifications, the longer the shelf holds.