Clearer Thinking with Spencer Greenberg

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The Hidden History of Evidence-Based Everything (with Helen Pearson)

June 12, 2026

Read the full transcript here. How do we know whether the things we do every day actually work? Why do so many practices in medicine, parenting, education, conservation, and public policy begin as intuition, authority, or anecdote rather than careful evidence? What can the tragic history of front-sleeping advice and sudden infant death syndrome teach us about the danger of untested conventional wisdom? How should we distinguish between a bad outcome, a bad decision, and a reasonable decisio...

Is cash a better form of charitable aid? (with Nick Allardice)

June 05, 2026

Read the full transcript here. How much good is lost when charity optimizes only for what can be measured? When does a cost-effectiveness model clarify reality, and when does it create false confidence? Could the most important interventions be the ones that look too uncertain, too political, or too indirect to fit neatly into a spreadsheet? What would it mean to judge philanthropy not only by the marginal dollar, but by its power to unlock whole systems of future impact? And if social chan...

When painful thoughts feel true but aren't (with Christine Padesky)

June 01, 2026

Read the full transcript here. Why do our minds sometimes need experiments more than insight? What changes when therapy becomes a way of practicing life outside the therapist’s office rather than explaining life inside it? If CBT is fundamentally about learning skills, how much of good therapy depends on what happens between sessions? Why can a five-minute action matter when depression says that nothing is worth doing? What does it mean to test a thought instead of trying to replace it with...