“Beliefs Are Tools, Not Truths”

In this episode of The Next Big Idea, host Rufus Griscom welcomes back author Nir Eyal to discuss his new book, *Beyond Belief*, which challenges the notion that our beliefs are fixed truths. Instead, Eyal argues that beliefs are dynamic tools—malleable, revisable, and chosen based on their utility in reducing suffering and increasing motivation. Drawing from powerful stories like a man undergoing 55-minute surgery without anesthesia through mental focus, and a rat swimming for 60 hours after being rescued, Eyal illustrates how shifting beliefs can unlock extraordinary human potential. He introduces practical tools like inquiry-based stress reduction and the 'turnaround' technique to help listeners identify and replace limiting beliefs with liberating ones. The episode also explores the science of placebo effects, the power of anticipation, and how cultural and societal beliefs shape our reality. Ultimately, the message is clear: we are not prisoners of our thoughts—our beliefs, though not facts, can be consciously chosen to create a more joyful, resilient, and effective life. The episode closes with a call to embrace small, consistent actions that build evidence, strengthen belief, and expand possibility over time.