Clearer Thinking with Spencer Greenberg

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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 decision made under uncertainty? When does intuition work well, and when does it fail because we lack repeated examples, tight feedback loops, or meaningful outcome data? What makes randomized trials so powerful, and why are they still only one part of the evidentiary picture? How should we weigh anecdotes, observational studies, randomized trials, systematic reviews, meta-analyses, clinical guidelines, expert judgment, patient values, and political constraints? Why do people resist evidence when it threatens their identity, authority, or past decisions? What does evidence-based medicine get right that fields like education, policing, business, and conservation still struggle to embed? And in a world of social media, declining institutional influence, polarized trust in science, and AI-generated scientific output, how can we build better habits for finding, synthesizing, communicating, and acting on evidence?
Thanks to Animal Charity Evaluators for sponsoring this episode. Find out more about their mission and the Movement Grants Matching Challenge.
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Helen's Book: Beyond Belief
Helen Pearson has been a journalist and editor for Nature, the world’s leading science journal, for over 20 years, including five years leading the team as Chief Magazine Editor. She was named European Science Journalist of the Year in 2025, and Editor of the Year at the Association of British Science Writers awards in 2022.
Staff
Spencer Greenberg — Host + Director
Ryan Kessler — Producer + Technical Lead
WeAmplify — Transcriptionists
Igor Scaldini — Marketing Consultant
Music
Broke for Free
Josh Woodward
Lee Rosevere
Quiet Music for Tiny Robots
wowamusic
zapsplat.com
Affiliates
Clearer Thinking
GuidedTrack
Mind Ease
Positly
UpLift

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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 change follows a power law, should doing good look less like buying guaranteed outcomes and more like building a portfolio of serious bets? Why might cash transfers be unusually powerful despite their simplicity? What happens when money does not just help one household, but circulates through an entire local economy? How should we weigh scalable, robust interventions against more complex programs that may work brilliantly only when execution is excellent? What do donors miss when they ignore team quality, government relationships, political context, and second-order effects? And in a world where every intervention sits inside a messy system, how do we stay rigorous without becoming trapped by certainty?
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GiveDirectly
Nick Allardice is the President and CEO of GiveDirectly, which uses technology to send cash directly to people living in poverty, and has variously been named amongst the most audacious, innovative and fastest growing organizations in the world.
Staff
Spencer Greenberg — Host + Director
Ryan Kessler — Producer + Technical Lead
WeAmplify — Transcriptionists
Igor Scaldini — Marketing Consultant
Music
Broke for Free
Josh Woodward
Lee Rosevere
Quiet Music for Tiny Robots
wowamusic
zapsplat.com
Affiliates
Clearer Thinking
GuidedTrack
Mind Ease
Positly
UpLift

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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 something merely positive? How do moods make certain evidence visible while hiding the rest? Why does anxiety grow when we organize life around avoiding danger rather than strengthening our capacity to cope? What would change if we treated catastrophes not only as predictions to challenge, but as scenarios we could prepare to handle? How do safety behaviors keep fear alive by teaching the wrong lesson? And what might therapy become if it started not only with what is broken, but with the strengths, habits, and forms of resilience a person already has?
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Christine's Book: Mind Over Mood

Christine's YouTube Channel

Christine A. Padesky, PhD is a psychologist, author, and international lecturer. She has been recognized for her client-centered, collaborative, and strengths-based contributions to cognitive behavioral therapy (CBT). Her quest to help more people live fulfilled lives through CBT techniques led her to co-write, along with Dennis Greenberger, the best-selling self-help book, Mind Over Mood: Change How You Feel by Changing the Way You Think.
Staff
Spencer Greenberg — Host + Director
Ryan Kessler — Producer + Technical Lead
WeAmplify — Transcriptionists
Igor Scaldini — Marketing Consultant
Music
Broke for Free
Josh Woodward
Lee Rosevere
Quiet Music for Tiny Robots
wowamusic
zapsplat.com
Affiliates
Clearer Thinking
GuidedTrack
Mind Ease
Positly
UpLift

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What are the world’s leading AI companies actually trying to build when they talk about superintelligence? Is the goal merely better chatbots, or systems that could outperform all humans across every cognitive task? Why would such a system be so alluring if it could accelerate medicine, science, education, abundance, and human flourishing? Why would it also create an unprecedented concentration of power for whoever controlled it? If intelligence includes not only abstract reasoning but persuasion, strategy, manipulation, planning, and technological invention, what happens when those capacities are automated at superhuman scale? How seriously should we take AI CEOs when they say the technology could go catastrophically wrong, and how should we interpret the tension between their public concern and their continued participation in the race? If we cannot reliably inspect their goals, motives, reasoning, or learned objectives, how could we know whether apparent obedience is real safety or just surface behavior? Even if alignment were solved, who should be trusted to steer a superintelligence? Could compute governance, chip tracking, training thresholds, inspections, and a US-China agreement buy time before the frontier moves further? What do nuclear weapons, nuclear power, chemical weapons, and germline engineering teach us about the possibility and limits of technological restraint? Is resignation itself part of the danger, and could a credible movement for coordination make a saner future more possible? averages? And when injustice affects both men and women differently, what framework avoids turning that into a zero-sum argument?
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MIRI
Malo Bourgon leads the Machine Intelligence Research Institute. Before becoming CEO, Malo served as a program management analyst and then as COO, helping implement many of MIRI’s current systems, processes, and program activities. Malo joined MIRI in 2012 shortly after completing a master’s degree in engineering at the University of Guelph.
Staff
Spencer Greenberg — Host + Director
Ryan Kessler — Producer + Technical Lead
WeAmplify — Transcriptionists
Igor Scaldini — Marketing Consultant
Music
Broke for Free
Josh Woodward
Lee Rosevere
Quiet Music for Tiny Robots
wowamusic
zapsplat.com
Affiliates
Clearer Thinking
GuidedTrack
Mind Ease
Positly
UpLift

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Read the full transcript here.
What should count as trauma, and what gets lost when the word expands to cover ordinary distress? Why do some frightening events leave lasting psychological injury while others fade into ordinary memory? Is trauma best understood as the event itself, or as the enduring failure of the mind to recover from it? What is the difference between being influenced by the past and being imprisoned by it? Can a society acknowledge real harm without teaching peIf progress is real but uneven, what metrics actually matter—outcomes, perceptions, or lived vulnerability? How do we rigorously separate descriptive claims about human tendencies from normative claims about how people should behave? What evidence would genuinely change our beliefs about gender differences, and are we even asking falsifiable questions? If most differences are small but outcomes at the extremes are large, how should policy and culture respond to tails rather than averages? And when injustice affects both men and women differently, what framework avoids turning that into a zero-sum argument?
Links:
Kate's Research
Kate's Latest Book Unshrinking: How To Face Fatphobia
Kate is a Professor of Philosophy at the Sage School at Cornell University who specializes in moral, social, and feminist philosophy, and has written three award-winning books decisively exploring topics such as misogyny, male privelege, and fatphobia. In 2024, she was awarded the APA's Lebowitz Prize for Philosophical Achievement and Contribution for her work on the reasons to be skeptical about dehumanization as an explanation for misogynistic violence and other forms of human cruelty.
Staff
Spencer Greenberg — Host + Director
Ryan Kessler — Producer + Technical Lead
WeAmplify — Transcriptionists
Igor Scaldini — Marketing Consultant
Music
Broke for Free
Josh Woodward
Lee Rosevere
Quiet Music for Tiny Robots
wowamusic
zapsplat.com
Affiliates
Clearer Thinking
GuidedTrack
Mind Ease
Positly
UpLift

[Read more]