A production of the Diverse Intelligences Summer Institute
Introducing Many Minds [A quick introduction to the podcast)
Andrews, Kristin and Susanna Monsó. "Animal Minds and Animal Morality." Many Minds (April 22, 2022) ["Your friend is in a bit of distress. They’ve just been dunked in a pool, and they can’t pull themselves out. You’re looking on as they’re paddling furiously, trying to hold onto the pool’s ledge. Fortunately, there’s a way to save your friend, to give them an escape route. The thing is, there’s also something else vying for your attention at the moment: a chunk of chocolate. So what do you do? Do you first nab the chocolate and then free your friend? Turns out that most rats in this position—that’s right, rats—will first free their friend and then go for the chocolate. This is one of many studies that have raised profound questions about whether animals are moral beings, about whether they are capable of things like care and empathy. Such studies are doing more than raising questions about animal morality, though; they’re also reshaping our understanding of what animal minds are capable of. My guests today are not one but two philosophers: Dr. Kristin Andrews, Professor of Philosophy at York University in Toronto and Dr. Susana Monsó, Assistant Professor in the Department of Logic, History, and Philosophy of Science at UNED in Spain. Both Susana and Kristin have emerged as central figures in the new conversations and debates that springing about animal minds and animal morality. We cover a lot of ground in this episode. We talk about rats and empathy. We discuss the role of philosophy in the crossdisciplinary study of animal cognition. We talk about Kristin’s most recent book, which is a critical consideration of how scientists are trained to study animals, and Susana’s book, which is an extended investigation into animals’ understandings of death. We zoom in on the “animal morality debate”—about whether animals should be considered moral beings. We consider how touch might inform the debate and social norms and morality are deeply enmeshed than you may realize. As we navigate these lofty ideas, we also touch on the use of thermography to study emotions in marmosets, planning in orangutans, tongue-biting in orcas, and playing dead in possums. This is basically a double episode. It features two amazing guests. It takes on two big topics—the study of animal minds in general and the animal morality debate in particular. It’s also a tad longer than our usual fare, but I promised its packed with useful frameworks, provocative findings, and a bunch of open questions. I think it also picks up steam as we go—so be sure to stick with it, through to the second half."]
Bascompte, Jordi and Rodrigo Cámara-Leret. "Plants, Languages, and the Loss of Medicinal Knowledge." Many Minds (October 7, 2021) ["Our planet is home to an astonishing diversity of plants—close to 400,000 species. Over the millennia, indigenous communities around the world have been studying those plants, experimenting with them, using them as a sort of free-growing pharmacy. Certain species, prepared in certain ways, might be used for digestive ailments; others for the skin, teeth, or liver. But this vast trove of medicinal knowledge is now under threat. Under two threats, really—we’re losing plant species and we’re losing indigenous languages and cultures. My guests this week are Dr. Rodrigo Camara-Leret and Dr. Jordi Bascompte, both of the University of Zurich’s Department of Evolutionary Biology and Environmental Studies. Rodrigo is a Senior Researcher there, and Jordi is a Full Professor. We discuss their remarkable recent paper titled ‘Language extinction triggers the loss of unique medicinal knowledge‘, published this past summer in the Proceedings of the National Academy of Sciences (PNAS). In the paper, Rodrigo and Jordi analyzed data from three hotspots of biocultural diversity—New Guinea, the Northwest Amazon, and North America. They were trying to better understand the nature of indigenous medicinal knowledge, the threats it is facing, and how we might best protect it. This is one of those papers that immediately grabbed me. It’s deeply, unclassifiably interdisciplinary; it takes on an urgent question with a clever approach; and it tells us something we genuinely didn’t already know. As I already said, our global stores of ethnobotanical knowledge are under threat—and from different directions. What Jordi & Rodrigo’s work shows is that, in order to protect that knowledge, we need to focus on protecting indigenous languages. Before we get to it, just wanted to mention that, as it happens, Jordi was just very recently awarded the prestigious Ramon Margalef prize for his groundbreaking contributions to the field of ecology. So it was an extra special honor to have him on this episode."]
Blasi, Damian. "The Natural History of Linguistic Diversity." Many Minds (August 28, 2026) ["Thousands of languages are used around the world today, and this linguistic diversity is a precious part of our human heritage. But it’s also more than that. Linguistic diversity provides clues—a vast crazy quilt of clues—about how language works, about how history has unfolded, about the dynamics of culture, and about the nature of the human mind. My guest today is Dr. Damián Blasi. Damián is an ICREA Research Professor based at the Center for Brain & Cognition at the Pompeu Fabra University in Barcelona. Over the last decade or so, Damián’s emerged as one of the most innovative researchers in the study of language and linguistic diversity. He’s been widely recognized for this work, and most recently was awarded the 2026 FABSS Early Career Impact Award from the Cognitive Science Society. In this conversation, Damián and I talk about why scientists should care about linguistic diversity. We do a bit of linguistic diversity 101—how many languages there are, how we can enumerate them, how they vary. We discuss a recent paper in which Damián and his colleagues reconstructed the explosive rise and precipitous fall of human linguistic diversity over the last 12,000 years. We talk about the factors that drive language change. And we discuss how cognitive science relies too much on English and English speakers—and how this may be holding the field back. Along the way, Damián and I touch on the Tower of Babel, a golden age of linguistic diversity, the human bite configuration, scientific aesthetics, whether children shape language, polygenetic theories of language evolution, the pace of language change, schooling, linguistic inequality and behemoth languages, and why Damián thinks that the possibility space of human language might be bigger and wilder than we currently imagine."]
Cooperrider, Kensy. "WEIRD: Adventures of an Acronym." Many Minds (July 1, 2020) ["The topic is the acronym WEIRD—maybe you’ve heard it used. It stands for Western, Educated, Industrialized, Rich, and Democratic. It’s become a shorthand for the idea that people in WEIRD societies are a bit unusual relative to the rest our species. The term was first introduced 10 years ago. On this episode I talk about its origins and the far-reaching influence it’s had since."]
Davies, Surekha and Natalie Lawrence. "Monsters and Their Makers." Many Minds (October 22, 2025) ["It seems we’ve always had monsters among us. We’ve long been enthralled by dragons and giants, by the likes of Frankenstein and Godzilla and Dracula, by witches and werewolves and countless others. They roam our maps and creation myths; they crop up in our dreams, in our children’s books, in our political rhetoric. Where do these beings spring from? What do they do for us? How have they changed over time? And, ultimately, what do our monsters say about their makers? My guests today are Dr. Natalie Lawrence and Dr. Surekha Davies. Both are historians of science and authors of recent books on monsters: Natalie’s book is Enchanted creatures: Our monsters and their meanings. Surekha’s book is Humans: A monstrous history. Here, Surekha, Natalie, and I talk about monsters as category breakers and boundary walkers—and about how monstrosity is in the eye of the beholder. We walk through a menagerie of monsters—from the apocryphal blemmyes of old travelogues, to a hairy-faced girl in 16th century France, to the figure of Caliban in The Tempest. We discuss the psychological and cultural forces that generate monsters. And we talk about whether anyone would want to live in a world without them. Along the way, we touch on the “monstrification” of social groups; psychoanalysis; our primal fear of snakes; curiosity cabinets; therianthropes and the Cave of the Three Brothers; the relationship between monstrosity and geography; our long fascination with so-called monstrous births; the Muppet Show; dinosaurs and sea creatures; and the question of what monsters might do for children in particular."]
Enfield, Nick. "What is Language For?" Many Minds (April 13, 2022) ["Welcome back friends and happy spring! (Or fall, as the case may be.) Today’s show takes on a disarmingly simple question: What is language for? As in, why do we say things to each other? What do words do for us? Why do our languages label some aspects of the world, but not others? My guest today is Dr. Nick Enfield. He’s Professor of Linguistics at the University of Sydney. Nick has authored or edited more than a dozen books on different aspects of human language and communication—books on word meaning, gesture, conversation, social interaction, the languages of Southeast Asia, and more. His latest book, just published by MIT press, is titled Language vs Reality: Why Language is Good for Lawyers and Bad for Scientists. In it, Nick argues that language is pretty awful at capturing reality—but actually that’s fine, because capturing reality isn’t the primary reason we use it. The real reason, in his view, is to coordinate with others. In this conversation, Nick and I flesh out this way of thinking about language as foremost a social coordination tool. Along the way, we talk about the two “reductions” that happen as brute reality gets transmuted into words. We discuss the economist Thomas Schelling and so-called Schelling maps. We talk about color words and plant names, salt and spoons, the insights of Benjamin Lee Whorf, the idea of “verbal overshadowing,” and a bunch of other phenomena and thinkers. As I say in the interview, Nick has one of the most expansive views of human language of anyone I know. He draws on anthropology, economics, primatology, developmental psychology, not to mention decades of his own fieldwork in Laos. That expansive—one might say, “many minded”—perspective is on full display here."]
Hoel, Erik. "Why Do We Dream?" Many Minds (December 8, 2021) ["You may not remember much about it, but chances are last night you went on a journey. As you slept, your brain concocted a story—maybe a sprawl of interconnected stories. It took you to some unreal places, gave you superpowers, unearthed old acquaintances, and twisted your perceptions. Meanwhile, billions of brains all around you, up and down the tree of life, were probably doing something very similar—dreaming, that is. But why do we do this? What could possibly be the function of these nightly ramblings? My guest today is Dr. Erik Hoel. He is a writer and a neuroscientist at Tufts University. In a paper published earlier this year, Erik presented a new theory of why we (and other creatures) dream. It’s called the “over-fitted brain hypothesis”; the basic idea is that dreaming helps us stay cognitively limber, adaptable—less tied to the particulars of our previous experiences. Erik and I discuss how he came to this new theory. We talk about how his account develops an analogy between the “overfitting” problem in machine learning and the “overfitting” problem that biological brains face as well. We discuss how his hypothesis can account for the bizarre nature of dream experience. And we consider Erik’s provocative suggestion that dreams are really just one type of fiction—biological fictions, if you like—and that other types of fiction may serve similar purposes."]
Kim, Yoolim and Olivier Morin."The ABCs of Writing Systems." Many Minds (June 22, 2022) ["Have you ever pondered the letter P, or maybe reflected on the letter R? As in, thought about their structures, their shapes, and how they came to be. I, to be honest, had not. I have never given these letters—or any other letters—much thought. But that’s what we’re up to today. In this episode, we’re looking across the world’s hundred plus scripts and asking some basic questions: How are they alike? How do they differ? And why do they have the shapes that they do? My guests are Dr. Yoolim Kim and Dr. Olivier Morin. Yoolim is a Psycholinguist at the Korea Institute at Harvard University, and Olivier is director of the Minds and Traditions research group (aka ‘The Mint’) at the Max Planck Institute for the Science of Human History in Jena, Germany. Olivier and Yoolim, along with other colleagues, have recently launched a new online game called Glyph. You can play right now. It asks players to help describe, break down, and classify the characters of dozens of writing systems around the world. Here, we talk about Glyph and what Yoolim and Olivier hope to learn from it. We do a bit of ‘Writing Systems 101’ and shine a spotlight on two scripts with fascinating origin stories: Hangul, the Korean script which was devised in the 15th century and Vai, a script invented in Liberia in the 19th century. We also talk about how universal cognitive factors shape writing systems and about whether the writing system you use shapes how you think. Finally, we discuss the earliest writing systems and what they were used for; the myth that the alphabet is the most advanced type of writing system; and the understudied—but not uncommon!—phenomenon of “biscriptalism.”"]
Luhrmann, Tonya and Kara Weisman. "Why Some See Spirits." Many Minds (April 28, 2021) ["Have you ever seen what seemed to be a spirit? Or heard a voice from an unseen source? Or maybe just sensed a presence and found yourself with goosebumps all over? These kinds of experiences can be incredibly powerful— life-altering, in fact—but they don’t happen often, and they don’t happen to everyone. So what drives this individual variation? Why do some of us have these extraordinary experiences while others never do? Could it be something about our personalities? Or our cultures? Could it have to do with the way we understand our minds? My guests on today’s show are Tanya Luhrmann, Professor of Anthropology at Stanford University, and Kara Weisman, a postdoc at UC-Riverside (formerly in the Psychology department at Stanford). Along with nine collaborators from across institutions, Tanya and Kara recently published a paper in the Proceedings of the National Academy of the Sciences (PNAS) titled ‘Sensing the presence of gods and spirits across cultures and faiths.’ This episode is nominally in our “behind the paper” series, but really it tells the story of not just this one paper but a much larger project: The Mind and Spirit project. The project was an unusual effort in scope: it included anthropologists and psychologists; it involved fieldwork in Ghana, Thailand, China, Vanuatu, and the US and practitioners of different faith traditions; it used both in-depth interviews and large-scale survey testing with thousands of participants. The particular paper we’re discussing today probed the basic idea that so-called “spiritual presence events”—those tingly, jarring, extraordinary experiences that some of us have—could be due to two main factors, factors that vary across individuals and cultures. The first proposed factor is how people understand the mind-world boundary. People who conceive of the mind as fundamentally leaky or “porous” might be more likely to have these kinds of experiences. The second proposed factor is how likely people are to get absorbed in their sensory experiences, to lose themselves in music, art, nature, movies, and so on. In our conversation, Tanya, Kara, and I talk about the deeper history behind this work; we break down what the constructs of porosity and absorption mean exactly and how they chose to measure them; we discuss the challenges and rewards of cross-disciplinary collaboration; and we talk about why I really need to read more William James. I wanted to feature this paper the moment I learned about it—it’s such an impressive piece of research on several levels. It’s also just certifiably cool. It’s dealing with cultural differences. It’s dealing with individual differences. And it’s dealing with variability in, to use the authors’ words “something as basic as what feels real to the senses.”"]
Lupyan, Gary and Bill Thompson. "Lost in Translation." Many Minds (November 11, 2020) ["This episode takes on a timeless question: Do concepts differ from one language to the next, or are they basically the same? Maybe you think we already know the answer. You’ve probably heard of cases where one language labels a concept that other languages don’t—the German word schaudenfreude, or the Danish notion of hygge, or, my favorite, the Japan concept of tsundoku. These examples are fun and get a lot of attention, and they certainly make it clear that there’s at least some variation. But a more provocative possibility is that even everyday words that seem easy to translate—words for concepts like chair, beautiful, or walk—might actually differ considerably from one language to the next. Today I talk to Dr. Bill Thompson, a postdoc at Princeton University in the Department of Computer Science and Dr. Gary Lupyan, a Professor at the University of Wisconsin in the Department of Psychology. Along with their co-author Sean Roberts, they published a paper this summer that looks at just this issue, at whether basic words have the same meanings across languages. The paper’s title is: “Cultural influences on word meanings revealed through large-scale semantic alignment.” We talk about the computational approach they use to quantify the similarity of word meanings. We consider their finding that certain kinds of concepts are more similar across languages than others. We discuss the role of culture in shaping concepts. And we talk a bit about why their paper caused something of a stir online. I found this to be a really thought-provoking conversation. It circles around one of the deepest questions we can ask about the human mind: Where do our concepts come from? Spoiler: we don’t settle the question once and for all here. But we do throw some light on it—perhaps."]
Pelig, Orit. "The Brilliant Swarm." Many Minds (June 8, 2022) ["Right now, as I’m recording this, there’s an astonishing spectacle unfolding in the forests of Tennessee. Every June, vast swarms of Photinus carolinus fireflies light up the night there. The members of this particular species don’t just blink erratically and independently. They sync up; they flash in a dazzling unison, creating waves of light that seem to propagate through the forest. But how do they do it? How do these tiny creatures pull off such a brilliant display? My guest today is Dr. Orit Peleg. She’s an Assistant Professor in the Department of Computer Science and the BioFrontiers Institute, at the University of Colorado – Boulder. Though a physicist by training, Orit and her lab focus on the dynamics of living systems, and they have recently taken up the puzzle of firefly synchrony. Here, we talk about what it’s like to do fieldwork on fireflies. We discuss the colorful history of research in this area and how the phenomenon of firefly synchrony was originally contested and explained away. We talk about what Orit and her team have learned about the mechanisms of this synchrony—and about their methods, which include rich in-the-wild recordings, experiments involving tents and LEDs, and a fair bit of modeling and math. We also touch on the firing of neurons, the pulsing of heart cells, the clapping of hands, and other examples of synchronization in the natural world."]
Schnel, Alex.
"The Savvy Cephalopod." Many Minds (January 20, 2021) ["Today we’ve got another “behind the paper” episode for you. In it, we’re talking about some of the most alien-seeming yet charismatic creatures around. I chatted with
Dr. Alex Schnell, a Comparative Psychologist and Research Fellow at Cambridge University. We discuss a paper she recently published with a few colleagues titled, ‘
How intelligent is a cephalopod?’ I’ve been charmed by cephalopods for awhile now—octopuses specifically. Maybe you have too. You’ve probably seen those videos of octopuses carrying coconut shells for protection, or pretending to be a hermit grab or a flounder. Maybe you saw the recent documentary
My Octopus Teacher where the main octopus character gathers a bunch of shells into a kind of makeshift armor to protect herself against an imminent shark attack. This is all jaw-droppingly, head-scratchingly cool stuff. But you may have also wondered, as I have, what’s really going on—cognitively—behind these behaviors. What’s happening in the minds of these creatures when they pull off these fancy feats? Could the mechanisms involved actually be simpler than you might at first guess? This really is the core issue in Alex’s paper and we circle around it for much of the conversation. But, in circling, we touch on a lot. We cover some Cephalopod 101 type stuff—when cephalopods split from vertebrates, what cephalopods brains are like, why octopuses tends to hog the limelight when squid and cuttlefish are pretty impressive, too. We talk about Alex’s studies of self-control in cuttlefish, styled on the classic marshmallow experiments. We talk about the cephalopod gift for disguise and whether this gift might suggest a form of bodily awareness or maybe even theory of mind. And we zoom out to talk about the evolution of cognitive sophistication generally and how cephalopods can help us understand the kinds of forces that drive it. I’ve been excited about cephalopods for awhile now, but having this conversation made me that much more so. It’s convinced me that we still have a ton to learn about—and probably from—these brainy, shape-shifting creatures."]
Tschinkel, Walter.
"Architects of the Underworld." Many Minds (January 19, 2022) [You’ve probably seen those lists of the so-called “wonders of the world.” Many are works of architecture: the Great Wall, the pyramids, the colosseum, Taj Mahal. But these lists are, in a sense, always incomplete. Our world holds other architectural wonders, after all—albeit ones that are hidden from human eyes, made from different materials, and a bit scaled down. I’m talking, of course, about the wonders of the underworld. I’m talking about ant nests. My guest today is Dr. Walter Tschinkel. Walter is an Emeritus Professor of Biological Science at Florida State University, where he’s led a distinguished career as a myrmecologist—a scientist who studies ants. He’s the author of the recent book
Ant Architecture: The Wonder, Beauty, and Science of Underground Nests. For decades now, Walter has been delving into ant colonies using a variety of creative, homegrown techniques. Foremost among these is his method of “nest casting”—the process of making durable, three-dimensional casts of ant nests. In this conversation, Walter and I do a bit of “Ants 101.” We discuss the notion of ant colonies as superorganisms. We talk about how Walter developed his nest-casting technique (not to mention other ingenious methods). We discuss where the blueprint for an ant nest resides, and whether ants might appreciate the beauty of their own nests. We also talk about the scientific process—about the joys of low-tech problem solving, about the importance of negative results, and about the pleasure of pursuing a good scientific mystery."]
Yong, Ed.
"A Smorgasbord of Senses." Many Minds (July 20, 2022) ["The world is bigger than you think. I don’t mean geographically, though maybe that too. I mean in terms of its textures and sounds and smells; I mean in terms of its hues and vibrations. There are depths and layers to the world that we don’t usually experience, that we might actually never be able to experience. Our senses just aren’t wired to take it all in. We’re simply not tuned to all the dimensions of reality’s rich splendor. But there is a way we can appreciate these hidden dimensions: with a flex of the imagination, we can step into the worlds of other creatures; we can try out different eyes and noses; we can voyage into different perceptual universes. Or at least we can try. My guest today is Ed Yong, author of the new book
An Immense World: How Animal Senses Reveal the Hidden Realms Arounds Us. Ed is a science writer for The Atlantic and the author of an exceptional earlier book on the microbiome called
I Contain Multitudes. This new book tours the wide diversity of animal senses. It asks what it’s like to be a bat, sure, but also what it’s like to be a star-nosed mole, a manatee, or a mantis shrimp. Informed by some truly extraordinary science, the book considers how it might feel to electrolocate around the ocean, to hear through the threads of a web, or to be tugged by the earth’s magnetic field. There’s a lot of praise I could lavish on this book, but I’ll just say this: it really makes you feel more alive. Reading it makes everything, in fact, seem more alive. It makes the world seem richer, more vivid, somehow more technicolor and finely textured. It makes you realize that every organism, all the creatures we share this planet with, possesses a kind of vibrant genius all their own."]