
502 Conversations - Science, Skepticism, Pseudoscience, Philosophy, and more.
by Brian Kerby
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- 🇰🇷KR · Science#9110K to 30K
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On the show
From 10 epsHost
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Recent episodes
Carlos Orsi - What Science Says About Astrology
Apr 19, 2026
55m 32s
William Matthew London ~ Editor, Quackwatch
Apr 2, 2026
43m 46s
Dr. Joe Schwarcz ~ Better Not Burn Your Toast: The Science of Food and Health
Jan 27, 2026
51m 52s
Cannabis: Benefits vs. Harm - What's the Evidence? with Dr. Christopher Labos
Dec 31, 2025
1h 07m 05s
Timothy Redmond ~ Highly Effective Thinkers: Critical Thinking for Kids
Oct 23, 2025
1h 01m 48s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 4/19/26 | ![]() Carlos Orsi - What Science Says About Astrology✨ | astrologyscience+3 | Carlos Orsi | IQCRevista Questão de Ciência+3 | — | astrologyscience+5 | — | 55m 32s | |
| 4/2/26 | ![]() William Matthew London ~ Editor, Quackwatch✨ | public healthskepticism+3 | William Matthew London | Cal State LACenter for Inquiry+5 | — | William Matthew LondonQuackwatch+4 | — | 43m 46s | |
| 1/27/26 | ![]() Dr. Joe Schwarcz ~ Better Not Burn Your Toast: The Science of Food and Health✨ | food sciencehealth+3 | Dr. Joe Schwarcz | McGill Office for Science and Society | — | food sciencehealth+3 | — | 51m 52s | |
| 12/31/25 | ![]() Cannabis: Benefits vs. Harm - What's the Evidence? with Dr. Christopher Labos✨ | cannabismedical cannabis+4 | Dr. Christopher Labos | Montreal GazetteCBC+3 | — | cannabismedical cannabis+4 | — | 1h 07m 05s | |
| 10/23/25 | ![]() Timothy Redmond ~ Highly Effective Thinkers: Critical Thinking for Kids✨ | critical thinkingeducation+4 | Timothy Redmond | Daemen CollegeJackson Center+2 | — | critical thinkingeducation+4 | — | 1h 01m 48s | |
| 10/1/25 | ![]() Raising A Skeptical Kid with Ronald Crouch✨ | skepticismcritical thinking+4 | Ronald Crouch | Beyond BeliefRaising A Skeptical Kid+4 | — | skeptical kidcritical thinking skills+5 | — | 51m 26s | |
| 4/26/25 | ![]() Dr. Joe Pierre ~ False: How Mistrust, Disinformation, and Motivated Reasoning Make Us Believe Things That Aren’t True✨ | mistrustdisinformation+3 | Dr. Joe Pierre | University of California, San FranciscoLangley Porter Psychiatric Hospital+1 | — | mistrustdisinformation+5 | — | 55m 39s | |
| 3/23/25 | ![]() The Telepathy Tapes: Hope or Hype? with Stuart Vyse, Psychologist & Behavioral Scientist✨ | telepathybehavioral science+3 | Stuart Vyse | American Psychological AssociationAssociation for Psychological Science+13 | — | telepathybehavioral science+5 | — | 58m 40s | |
| 2/21/25 | ![]() Bernie Garrett ~ The New Alchemists: The Rise of Deceptive Healthcare✨ | deceptive healthcarenursing education+3 | Bernie Garrett | University of British ColumbiaDedham TV+3 | — | deceptive healthcarenursing+3 | — | 59m 06s | |
| 2/4/25 | ![]() Education Research Specialist Katharine Beals ~ The falsity of facilitated communication✨ | facilitated communicationautism+3 | Katharine Beals | University of PennsylvaniaDrexel University+4 | — | facilitated communicationautism+3 | — | 57m 46s | |
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| 1/1/25 | ![]() 2024 Cardiology Year in Review - with Dr. Christopher Labos | Cholesterol denialism Dr. Christopher Labos is a cardiologist with a degree in epidemiology. He spends most of his time doing things for which he does not get paid, like research, teaching, podcasting, and speaking with me. He writes for the Montreal Gazette, makes regular appearances on CBC radio and TV, and is co-host of The Body of Evidence podcast, where he and Jonathan Jarry take a skeptical eye at health claims and look at the body of evidence on a variety of health topics. He is also the author of the book: Does Coffee Cause Cancer and Eight More Myths About the Food We Eat. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. Video version available at https://youtu.be/JUJKfcEWiqY Links to topics/papers mentioned in the show: Cholesterol denialism https://www.medscape.com/viewarticle/cholesterol-denialism-pseudoscience-2024a100083z Endurance exercise https://www.medscape.com/viewarticle/too-much-good-thing-can-endurance-exercise-be-harmful-2024a1000fhx and https://www.sciencedirect.com/science/article/pii/S0870255124000799?via%3Dihub Multivitamins, cocoa extract and dementia https://www.medscape.com/viewarticle/996926 and https://www.medscape.com/viewarticle/981780 https://www.mdedge.com/cardiology/article/270665/arrhythmias-ep/skip-potassium-after-cardiac-surgery Intermittent fasting https://www.medscape.com/viewarticle/1000544 Sodium vs. potassium for BP https://www.medscape.com/viewarticle/999805 Internal mammary ligation for angina RCT https://www.nejm.org/doi/abs/10.1056/NEJM195905282602204 Chelation therapy https://www.mcgill.ca/oss/article/medical/study-gets-heart-controversial-chelation-therapy | — | ||||||
| 12/7/24 | ![]() Dr. Paul Offit ~ RFK Jr., Dr. Oz, and other health and human services nominees | Dr. Offit is a pediatrician; a professor of both pediatrics and vaccinology; director of the Vaccine Education Center at the Children's Hospital of Philadelphia. He is an expert on vaccines, immunology, and virology and is a member of the FDA Vaccine Advisory Committee and has published hundreds of papers in medical and scientific journals. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. Video version here https://youtu.be/83vqu3_BbRw 00:00 Intro 00:24 Welcome and bio 02:02 Background for topics 05:35 RFK Jr.: conspiracy theorist 10:37 RFK Jr. "no vaccine has ever been beneficial" BS; and the real truth about vaccine successes 15:36 The potential fallout of having an anti-vaccination activist as head of HHS 18:11 Chronic disease vs. infectious disease 19:00 Dr. Oz for CMS? 20:36 Weldon for CDC? 22:57 Makary for FDA? 26:17 Instilling trust by admitting mistakes 27:26 Yet another RFK Jr. conspiracy theory 28:48 Bhattacharya for NIH? 31:16 COVID revisionism and lab leak BS 37:39 Politicizing science - contrarians over credibility 39:39 Nuanced messaging 40:46 Learning as you go, and the overall system at work 44:03 Ending on a positive note (for some…) | — | ||||||
| 10/13/24 | ![]() The True Story of Sallie Winchester and the Mystery House ~ with Skeptical Activist Adrienne Hill | Adrienne is a skeptical activist, and serves as a board member for the nonprofit organization About Time. Additionally, she holds positions as a board member, presenter, and educational consultant for the Tourette OCD Alberta Network. Adrienne actively contributes as an editor for Guerrilla Skepticism on Wikipedia; reports for The Skeptic Zone podcast; writes for Skeptical Inquirer magazine in the US and Australia’s The Skeptic Magazine; and co-chairs the Western Canadian Reason Conference (WeCanReason), which is held annually each May in Calgary, Canada. Her website is zonegiggler.ca Video version available at https://youtu.be/GLmyzbIbe0M © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. Thumbnail credit: Skeptical Inquirer | — | ||||||
| 10/8/24 | ![]() Grit, mindset, and other "learning styles" with education researcher Katharine Beals | Dr. Katharine Beals has a PhD in linguistics, is lecturer at the Graduate School of Education at the University of Pennsylvania, and an adjunct professor at both the Drexel University and Temple University schools of education. She is the author of numerous books and articles on language, literacy, math instruction, and problems with current practices in K–12 classrooms. She recently authored the article “Should schools dedicate time to grit and growth mindset”. Video version available at https://youtu.be/QG-zOOrXfjM © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. | — | ||||||
| 6/19/24 | ![]() Brain Supplements - Do They Maintain, Improve, or Restore Cognitive Ability? | This episode may be viewed as a video here: https://youtu.be/9t_wwXRo4j0 Welcome! As I mentioned in the 502 Conversations Brain Training episode with Dr. Indre Viskontas, I did a prior show on brain supplements. The show is The Dr. Dennis Show, which I co-host. I thought it might be a good idea to excerpt the brain supplement segment and make it available on 502 Conversations. Enjoy! © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. Links to reports mentioned in this show: MEMORY SUPPLEMENTS Clarifying FDA and FTC Roles Could Strengthen Oversight and Enhance Consumer Awareness https://www.gao.gov/assets/gao-17-416.pdf The Real Deal on Brain Health Supplements: GCBH Recommendations on Vitamins, Minerals, and Other Dietary Supplements https://tinyurl.com/m5cru57j New Report Pans Supplements for Brain Health: AARP collaborative council finds little value — but lots of expense — in would-be memory boosters https://tinyurl.com/y4btb3w6 Summer 2021 update to AARP’s Supplement survey:https://www.aarp.org/health/brain-health/global-council-on-brain-health/supplements/ | — | ||||||
| 6/13/24 | ![]() Brain Training Games, Apps, and Exercises - Do They Work? A Conversation with Dr. Indre Viskontas | This episode may be viewed as a video here https://youtu.be/YIkCs1XCPWo Dr. Viskontas has a PhD in cognitive neuroscience and a masters of music in voice performance. She is currently an associate professor of psychology at the University of San Francisco where she directs the creative brain lab; and she has a cross appointment at the San Francisco Conservatory of Music, where she applies neuroscience to musical training. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. | — | ||||||
| 5/7/24 | ![]() Dr. Joe Schwarcz ~ Superfoods, Silkworms, and Spandex; and a career in science communication. | This episode may be viewed as a video here https://youtu.be/7FuWSjf2YEQ Dr. Joe Schwarcz is Director of the McGill Office for Science and Society. He is well known for his informative and entertaining public lectures on topics ranging from the chemistry of love to the science of aging and is fondly referred to as Dr. Joe. He hosts "The Dr. Joe Show" on Montreal's CJAD radio; writes the newspaper column The Right Chemistry for the Montreal Gazette; and has authored the best-selling books such as Radar, Hula Hoops and Playful Pigs; An Apple a Day; and Monkeys, Myths, and Molecules. His newest is book, Superfoods, Silkworms, and Spandex: Science and Pseudoscience in Everyday Life. Dr. Joe is also an amateur magician and often spices up his presentations with a little magic, and like most magicians he has a pronounced disdain for pseudoscience and charlatans, from psychics to so called alternative health practitioners. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. | — | ||||||
| 3/2/24 | ![]() Dr. Paul Offit ~ Tell Me When It’s Over: An Insider’s Guide to Deciphering Covid Myths and Navigating Our Post-Pandemic World | This episode may be seen as a video here: https://youtu.be/-8n9ZVV9M5E Dr. Paul Offit is a pediatrician; a professor of both pediatrics and vaccinology; and he is the Director of the Vaccine Education Center at the Children's Hospital of Philadelphia. He is an expert on vaccines, immunology, and virology and co-inventor of the rotavirus vaccine RotoTeq, and is a member of the FDA Vaccines and Related Biological Products Committee. He has published hundreds of papers in medical and scientific journals, speaks at both professional and public conferences, and is the author of 13 books. His newest book is Tell Me When It’s Over: An Insider’s Guide to Deciphering Covid Myths and Navigating Our Post-Pandemic World. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. | — | ||||||
| 2/23/24 | ![]() David Samson - Our Tribal Future | A video version is available at https://youtu.be/_VdNPIoajSc David Samson, PhD., is an Associate Professor of Evolutionary Anthropology at the University of Toronto, and Director of the Sleep and Human Evolution Lab. He is the author of “Our Tribal Future: How to channel our foundational human instincts into a force for good”. His research directly addresses the central anthropological question of human uniqueness. In other words, the question he asks is what is it about our species that has made us the most successful animal on the planet? He’s comparatively worked with human and non-human primates around the globe to better understand the behavioral, physiological, and cognitive suite of traits that likely played a crucial role in our advance. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission, is prohibited. | — | ||||||
| 1/22/24 | ![]() Anthony Magnabosco and Street Epistemology | This episode may be viewed as a video here https://youtu.be/wGlswKJMHTU Anthony Magnabosco is from San Antonio, Texas and is a founder and the current Executive Director of the nonprofit Street Epistemology International (SEI). SEI is an educational organization committed to addressing dysfunction in public and private discourse by encouraging rationality through civil conversation. SEI's goal is to provide people with the resources needed to develop, practice, and promote Street Epistemology, an approach that helps people critically reflect on the quality of their reasoning so as to update the confidence they have in their conclusions. © 2024 Dedham TV. Unauthorized duplication, for any reason, without permission is prohibited. Links: streetepistemology.com navigatingbeliefs.com linktr.ee/magnabosco Anthony's Youtube Channel | — | ||||||
| 12/15/23 | ![]() Dr. Christopher Labos Round Two ~ more about "Does Coffee Cause Cancer" plus this year in Cardiology | This episode may also be viewed here. Remember when we were young and chocolate was good for us? And red wine too, the more the better? Dr. Christopher Labos is here once again to set the record straight. He talks more about his book - plot and character development; the French Paradox; Mendelian randomization; this year in Cardiology, and more! A cardiologist with a degree in epidemiology, he spends most of his time doing things for which he does not get paid, like research, teaching, and podcasting. Occasionally, he finds time to practice as a cardiologist so he can pay his rent. He realizes that half of his research findings will be disproved in five years: he just doesn't know which half. He writes for the Montreal Gazette, and makes regular appearances on CBC radio and TV. © 2023 Dedham TV. Unauthorized duplication, for any reason, without permission is prohibited. | — | ||||||
| 11/16/23 | ![]() Lee McIntyre On Disinformation How to Fight for Truth and Protect Democracy | This episode may be viewed as a video here: https://youtu.be/gPuAxnoBaIA Lee McIntyre is a Research Fellow at the Center for Philosophy and History of Science at Boston University. The recipient of several teaching awards, he has taught philosophy at Colgate University, Boston University, Tufts Experimental College, Simmons College, and Harvard Extension School. Formerly Executive Director of the Institute for Quantitative Social Science at Harvard University, he has also served as a policy advisor to the Executive Dean of the Faculty of Arts and Sciences at Harvard. He is the author of several books, including How to Talk to A Science Denier; The Scientific Attitude; The Art of Good and Evil; and Post Truth. His latest book is On Disinformation: How to Fight for Truth and Protect Democracy. © 2023 Dedham TV. Unauthorized duplication, for any reason, without permission is prohibited. | — | ||||||
| 10/16/23 | ![]() Dr. Dannagal Young ~ Wrong: How Media, Politics, and Identity Drive our Appetite for Misinformation. | This episode may be seen as a video here https://youtu.be/NK6QxIdhueQ Dr. Young is a Professor of Communication and Political Science at the University of Delaware where she studies the content, audience, and effects of nontraditional political information. She has published over sixty academic articles and book chapters on the content, psychology, and effects of political information, satire, and misinformation. She is a Research Fellow with the University of Delaware's Center for Political Communication and is a recipient of the University’s Excellence in Teaching Award. Dr. Young's 2020 TED Talk explaining how our psychology shapes our politics, and how media exploit these relationships, has been viewed almost two million times. She publishes extensively in the popular press with essays and Op-eds in outlets including Vox.com, The Washington Post, and The Atlantic. She has appeared on CNN, PBS Newshour, ABC News, NPR, and various national and international podcasts. Her popular University of Delaware course "Propaganda and Persuasion" was released by Wondrium’s The Great Courses in 2023. Her book Irony and Outrage: The Polarized Landscape of Rage, Fear, and Laughter in the U.S. examines satire and outrage as the logical extensions of the respective psychological profiles of liberals and conservatives, and her new book is Wrong: How Media, Politics, and Identity Drive our Appetite for Misinformation. Dr. Young is also an improvisational comedian, performing regularly with the improv comedy troupe, ComedySportz Philadelphia, and she has worked with Flackcheck.org to debunk inaccurate political claims through satire and parody. She grew up in New Hampshire and graduated from the University of New Hampshirebefore moving to Philadelphia to pursue her Ph.D. at the University of Pennsylvania's Annenberg School for Communication. She has been a professor at the University of Delaware since 2006. © 2023 Dedham TV. Unauthorized duplication, for any reason, without permission is prohibited. | — | ||||||
| 10/9/23 | ![]() Halloween Lore, Urban Legends, and the Paranormal, with Investigator and Research Fellow - Ben Radford | This episode is also available as a video here: https://youtu.be/hK9DaPsYgNA Writer, folklorist, and research fellow, and paranormal investigator Benjamin Radford discusses a history of Halloween; urban legends including organ theft and bad clowns; investigating ghosts and the paranormal; and more, much more! Benjamin Radford is one of the world’s few science-based paranormal investigators, and has done first-hand research into mysterious phenomena in sixteen countries on four continents. His research work has included psychics; ghosts and haunted houses; exorcisms; miracles; Bigfoot; stigmata; lake monsters; UFO sightings; reincarnation; crop circles; and many other topics. He is perhaps best known for solving the mysteries of the Santa Fe Courthouse Ghost, the Hispanic vampire el Choo-PAH-CAB-RAH, and his book Bad Clowns, the first to fully examine the evil clown phenomenon. He has written thousands of articles on a wide variety of topics, including urban legends, the paranormal, critical thinking, and media literacy and is the author of 13 books including: America the Fearful; Tracking the Choo-Pah-Cab-Rah; Bad Clowns; Scientific Paranormal Investigation; Media Mythmakers; Big if True; The Martians Have Landed - A History of Media Driven Panic, co-authored with Robert Bartholomew; and Investigating Ghosts - The Scientific Search for Spirits. | — | ||||||
| 9/18/23 | ![]() 502 Conversations with Andy Norman, author of Mental Immunity: Infectious Ideas, Mind-Parasites, and the Search for a Better Way to Think | This episode may also be viewed as a video here https://youtu.be/A564BmrXTAo Andy Norman has a PhD in Philosophy from Northwestern University and is the award-winning author of Mental Immunity: Infectious Ideas, Mind-Parasites, and the Search for a Better Way to Think. andynorman.org His research illuminates the evolutionary origins of human reasoning, the norms that make dialogue fruitful, and the workings of the mind’s immune system. He champions the emerging science of mental immunity as the antidote to disinformation, propaganda, hate, and division. His work has appeared in Scientific American, Psychology Today, Skeptic, Free Inquiry, and The Humanist and he directs the Humanism Initiative at Carnegie Mellon University. He is the founder of CIRCE, the Cognitive Immunology Research Collaborative. © 2023 Dedham TV. Unauthorized duplication, for any reason, without permission is prohibited. | — | ||||||
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Chart Positions
1 placement across 1 market.
Chart Positions
1 placement across 1 market.





















