Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

Jessica Riskin, Stanford historian of science known for The Restless Clock, traces Jean‑Baptiste Lamarck’s vision of organisms as creatively active agents. The conversation explores machine metaphors versus self-making life, Lamarck’s life and reception, links between his ideas and modern concepts like epigenetics and niche construction, and the cultural forces that shaped evolutionary thought.

Andrew Guthrie Ferguson, a law professor and author who studies privacy and policing in the digital age, joins to unpack how everyday tech creates constant self-surveillance. He discusses why law lags behind fast-changing data collection, how devices and data brokers feed policing, the rise of AI-powered real-time monitoring, and proposed legal reforms and corporate design choices to limit abuse.

Erica Cartmill, cognitive scientist and anthropologist who studies comparative cognition and play, joins to explore how minds differ across species. She discusses how intelligence is a constellation of traits, surprising numerical strengths in chimps, and the roles of play, teasing, and laughter in social bonds. She also links animal cognition methods to evaluating AI and invites public observation of animal behavior.

Listeners ask about information, complexity, and how they relate to AI and life's emergence. He presents a taxonomy of information and links it to thermodynamics and free energy. Topics include time-travel alternatives, physical limits on universe-scale minds, JWST surprises about early galaxies, quantum decoherence and measurement, and ethics around AI-written science.

Adam Elga, Princeton philosopher known for work on decision theory and self-locating beliefs, guides listeners through puzzles of being uncertain about where or when you are. He explores Sleeping Beauty, teletransporters and duplicate selves. He tackles anthropic reasoning, Boltzmann brains, and how to set priors in vast or simulated universes.

Adam Gurri, editor and co-founder of Liberal Currents who defends liberal democracy and pluralism. He discusses why liberal ideas went undefended, threats from post-liberal and online authoritarian movements, how concentrated wealth and impunity weaken institutions, and practical reforms—party strength, civic education, voting rules, and policy tools—to protect pluralist, rights-respecting systems.

Tom Griffiths, Princeton professor and author exploring computational cognitive science. He discusses whether mathematical principles can characterize thought. He traces logic from Aristotle and Boole to probabilistic reasoning. He covers Bayesian views, resource-rational heuristics, sampling strategies, inductive biases, and how human cognition compares with modern AI.

A wide-ranging Q and A tackles democracy and civic risk, political protest, and the role of voting as defense. Deep dives into dark energy tensions, neutrino mixing, and cosmological origins. Provocative exchanges on AI consciousness, its ethics and safety, and what would count as evidence. Tangents include black holes, quantum foundations, creativity vs algorithms, and practical advice for aspiring physicists.

Rachell Powell, philosopher and Boston University professor who studies evolution, cognition, and social norms. She explores convergence versus contingency in evolution. She discusses repeated evolution of brains and surprising cognition in bees. She examines cumulative culture as a rare bottleneck, convergent social norms (even in ants), and moral fragility amid technological and extinction risks.

Stewart Brand, a prominent writer and cultural thinker known for founding the Whole Earth Catalog and the Long Now Foundation, explores the vital role of maintenance in society. He argues that maintenance is an often-overlooked necessity linked to everything from infrastructure to personal projects. Discussing everything from quantum error correction to the art of repairing, Brand emphasizes the importance of viewing maintenance as a valuable practice rather than a chore. His insights challenge listeners to consider the balance between innovation and durability, all while advocating for the right to repair.