The Skeptics' Guide to the Universe

David Kyle Johnson, a philosopher focused on critical thinking and philosophy of science, joins to untangle authority versus expertise. Conversation covers when expert consensus matters and how appeals to authority get misused. They probe ad hominem nuances, incentives shaping trust, and when to rely on experts versus fiat claims.

They unpack pareidolia and apophenia and why humans spot patterns that may not be real. They debate wearables’ accuracy and how imperfect medical data can cause harm. A defunct Falcon 9 upper stage headed for the Moon and a rare merging pair of quasars make space news. They explore evolvable AI risks, longevity escape velocity, stem cell realities, and play a noisy sound-identification game.

A lively dive into cryptomnesia and how false memories can hijack creativity. Poll results on belief in unproven health claims and how influential figures shape public opinion. Realistic takes on limb regeneration research and its hurdles. Evidence that the 988 lifeline reduced youth suicides and the challenges of funding crisis care. The surprising physics behind why rubber is so durable.

A lively rundown of Artemis II's translunar tests, heat‑shield performance and improvised crew shielding. Deep dives into AI-driven biology labs, dual‑use risks and the policy gaps around bio‑AI. New automated coding tools that can find software vulnerabilities and coordinated white‑hat responses. A proof‑of‑concept superconductivity imaging breakthrough and skeptical takes on red light therapy hype.

A lively mix of spaceflight mechanics and heat shield concerns around Artemis II, plus a playful take on a Waffle House teleportation claim. Deep dives into why people prefer certain colors and the brain studies behind those patterns. Ethical debates on human genetic engineering and a promising self-healing composite material. Plus a mystery noise reveal and a science-or-fiction trivia segment.

Portable antiprotons and why transporting antimatter is harmless. Reactions to Artemis II launch plus life aboard Orion and mission details. AI vs humans in predicting reproducibility and definitions of reproducibility. Emerging smart drugs and programmable DNA drug conjugates. NASA's nuclear electric propulsion plans and tradeoffs for deep space. Underwater seagrass rings and possible formation mechanisms.

A lively dive into confirmation bias and ways to spot motivated reasoning. NASA’s new plans for a sustained Moon presence and nuclear-electric propulsion are unpacked. Reports on limits of mammalian cloning and why prehistoric insects grew huge get discussed. A Vatican exorcism summit and risks of misattributing medical issues are examined. Listener audio mystery and a global nutrition quiz add fun segments.

Professor Kristian Andersen, director of infectious disease genomics at Scripps Research, discusses his work on viral emergence and the origins of SARS-CoV-2. He covers evidence pointing to the Huanan market, why finding an intermediate host is hard, shifts in his thinking from lab-leak to zoonosis, challenges from missing data and limited transparency, and strategies to prevent future spillovers.

A lively mix of science and skepticism. They unpack cognitive bias with a clear take on the fundamental attribution error. Deep dives into photosynthesis improvements, Rubisco breakthroughs, and potential crop yield gains. Astronomy talk covers magnetars and superluminous supernovae. They debunk bioweapon claims about Lyme disease and examine chatbot-driven medical misinformation. Quick rounds on logical fallacies and climate trend questions.

A tour through face perception and the Thatcher illusion. Growing chickpeas in lunar regolith simulant and what it means for off‑Earth farming. New research suggesting sea level rise estimates may be underestimated in some regions. A skeptical critique of a Reiki clinical trial and neurons-on-a-chip playing Doom. A round of medieval science-or-fiction myths.