What you'll learn

• 1 (00:00) **Introduction: The Cherry Tree Paradox** - Shankar Vedantam opens with the myth of George Washington and the cherry tree, a lie invented to teach the value of honesty, setting up the episode's central question about when deception can be moral.
• 2 (03:45) **Guest Introduction: Emma Levine** - Vedantam introduces psychologist Emma Levine from the University of Chicago, who studies the psychology of truth-telling and deception.
• 3 (04:33) **The Wedding Guest List Lie** - Levine shares a personal story about her mother lying to her to avoid stress during her wedding planning, illustrating a "good lie" that worked out perfectly.
• 4 (08:21) **Must-Lie Situations and Bad Truths** - The concept of "must-lie situations" (e.g., telling a friend their baby is ugly) is introduced, alongside the idea of "bad truths" that cause unnecessary harm without providing any benefit.
• 5 (10:23) **The Cuban Missile Crisis: A High-Stakes Deception** - The Kennedy administration's decision to keep the discovery of Soviet missiles in Cuba secret is analyzed as a case where deception may have averted panic and war, but at the long-term cost of public trust.
• 6 (14:08) **The Paradox of Honesty** - Levine outlines the central puzzle: we teach that honesty is a bedrock principle, yet we routinely lie in social interactions, following an unspoken code about when deception is acceptable.
• 7 (16:20) **Rule 1: Lies to Protect the Vulnerable** - Research shows people find it more acceptable to lie to someone who is fragile or distracted, such as an employee whose father is hospitalized or a friend studying for a major exam.

+ Full timestamped outline available in the app