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Many Minds

Podcast Many Minds
Kensy Cooperrider – Diverse Intelligences Summer Institute
Our world is brimming with beings—human, animal, and artificial. We explore how they think, sense, feel, and learn. Conversations and more, every two weeks.

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  • From the archive: The octopus and the android
    Happy holidays, friends! We will be back with a new episode in January 2025. In the meantime, enjoy this favorite from our archives! ----- [originally aired Jun 14, 2023] Have you heard of Octopolis? It’s a site off the coast of Australia where octopuses come together. It’s been described as a kind of underwater "settlement" or "city." Now, smart as octopuses are, they are not really known for being particularly sociable. But it seems that, given the right conditions, they can shift in that direction. So it's not a huge leap to wonder whether these kinds of cephalopod congregations could eventually give rise to something else—a culture, a language, maybe something like a civilization.  This is the idea at the center of Ray Nayler's new book, The Mountain in the Sea. It's both a thriller of sorts and a novel of ideas; it’s set in the near future, in the Con Dao archipelago of Vietnam. It grapples with the nature of intelligence and meaning, with the challenges of interspecies communication and companionship, and ultimately with what it means to be human.  Here, Ray and I talk about how he got interested in cephalopods and how he came to know the Con Dao archipelago. We discuss some of the choices he made as an author—choices about what drives the octopuses in his book to develop symbols and about what those symbols are like. We consider the major human characters in his book, in particular two ambitious researchers who embody very different approaches to understanding minds. We also talk a fair bit about AI—another central character in the book, after all, is a super-intelligent android. Along the way, Ray and I touch on Arrival, biosemiotics, the nature of symbols, memory and storytelling, embodiment, epigenetics, cephalopod camouflage, exaptation, and the sandbox that is speculative fiction.  This episode is obviously something a little different for us. Ray is a novelist, after all, but he’s also an intellectual omnivore, and this conversation, maybe more than any other we’ve had on the show, spans three major branches of mind—human, animal, and machine. If you enjoy this episode, note that The Mountain in the Sea just came out in paperback, with a jaw-droppingly cool cover, I’ll add. I highly recommend that you check it out. One more thing, while I have you: If you're enjoying Many Minds, we would be most grateful for your help in getting the word out. You might consider sharing the show with a friend or a colleague, writing us a review on Apple Podcasts, or leaving us a rating on Spotify or Apple. All this would really help us grow our audience.  Alright friends, on to my conversation with Ray Nayler. Enjoy!    A transcript of this episode is available here.     Notes and links 8:30 – For the review of The Mountain in the Sea in question, see here.  14:00 – Con Dao is a national park in Vietnam. 17:00 – For our previous episode about cephalopods, see here. 19:00 – For a book-length introduction to biosemiotics, see here.   24:00 – A video of Japanese macaques washing sweet potatoes.  26:30 – For discussion of the human case, in which environmental pressures of some kind may have propelled cooperation, see our episode with Michael Tomasello.  29:00 – A popular article about RNA editing in cephalopods.  35:00 – A video of the “passing cloud” phenomenon in cuttlefish. A brief article about the phenomenon. A video showing other forms of camouflage in octopuses. 41:00 – An experimental exploration of the movement from “iconic” to “symbolic” communication in humans.  44:00 – A popular article about the communication system used in the movie Arrival.  49:00 – One source of inspiration for Ray’s book was Eduardo Kohn’s How Forests Think.  1:00:00 – An article on the idea of “architects” and “gardeners” among writers.  1:05:00 – Ray’s story ‘The Disintegration Loops’ is available here. 1:11:00 – Ray’s story ‘The Summer Castle’ is available here.  1:13:00 – A popular article about the phenomenon of highly superior autobiographical memory. An essay about the idea that faulty memory is a feature rather than a bug. 1:18:00 – Ray’s story ‘Muallim’ is available here.   Recommendations Ways of Being, by James Bridle Living in Data, by Jer Thorp   Follow Ray on Twitter.   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the Templeton World Charity Foundation to UCLA. It is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: [email protected].   For updates about the show, visit our website or follow us on Twitter: @ManyMindsPod.
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  • Your brain on language
    Using language is a complex business. Let's say you want to understand a sentence. You first need to parse a sequence of sounds—if the sentence is spoken—or images—if it's signed or written. You need to figure out the meanings of the individual words and then you need to put those meanings together to form a bigger whole. Of course, you also need to think about the larger context—the conversation, the person you're talking to, the kind of situation you're in. So how does the brain do all of this? Is there just one neural system that deals with language or several? Do different parts of the brain care about different aspects of language? And, more basically: What scientific tools and techniques should we be using to try to figure this all out?   My guest today is Dr. Ev Fedorenko. Ev is a cognitive neuroscientist at MIT, where she and her research group study how the brains supports language and complex thought. Ev and her colleagues recently wrote a detailed overview of their work on the language network—the specialized system in our brain that underlies our ability to use language. This network has some features you might have expected, and—as we’ll see—other features you probably didn't.   Here, Ev and I talk about the history of our effort to understand the neurobiology of language. We lay out the current understanding of the language network, and its relationship to the brain areas historically associated with language abilities—especially Broca's area and Wernicke's area. We talk about whether the language network can be partitioned according to the subfields of linguistics, such as syntax and semantics. We discuss the power and limitations of fMRI, and the advantages of the single-subject analyses that Ev and her lab primarily use. We consider how the language network interfaces with other major neural networks—for instance, the theory of mind network and the so-called default network. And we discuss what this all tells us about the longstanding controversial claim that language is primarily for thinking rather than communicating.   Along the way, Ev and I touch on: some especially interesting brains; plasticity and redundancy; the puzzle of lateralization; polyglots; aphasia; the localizer method; the decline of certain Chomskyan perspectives; the idea that brain networks are "natural kinds"; the heart of the language network; and the question of what the brain may tell us—if anything—about how language evolved.   Alright friends, this is a fun one. On to my conversation with Dr. Ev Fedorenko. Enjoy!   A transcript of this episode will be available soon.     Notes and links 3:00 – The article by a New York Times reporter who is missing a portion of her temporal lobe. The website for the Interesting Brains project.  5:30 – A recent paper from Dr. Fedorenko’s lab on the brains of three siblings, two of whom were missing portions of their brains.  13:00 – Broca’s original 1861 report.  18:00 – Many of Noam Chomsky’s ideas about the innateness of language and the centrality of syntax are covered in his book Language and Mind, among other publications. 19:30 – For an influential critique of the tradition of localizing functions in the brain, see William R. Uttal’s The New Phrenology. 23:00 – The new review paper by Dr. Fedorenko and colleagues on the language network.  26:00 – For more discussion of the different formats or modalities of language, see our earlier episode with Dr. Neil Cohn. 30:00 – A classic paper by Herbert Simon on the “architecture of complexity.” 31:00 – For one example of a naturalistic, “task-free” study that reveals the brain’s language network, see here.  33:30 – See the recent paper arguing “against cortical reorganization.” 33:00 – For more on the concept of “natural kind” in philosophy, see here.  38:00 – On the “multiple-demand network,” see a recent study by Dr. Fedorenko and colleagues.  41:00 – For a study from Dr. Fedorenko’s lab finding that syntax and semantics are distributed throughout the language network, see here. For an example of work in linguistics that does not make a tidy distinction between syntax and semantics, see here.  53:30 – See Dr. Fedorenko’s recent article on the history of individual-subject analyses in neuroscience.  1:01:00 – For an in-depth treatment of one localizer used in Dr. Fedorenko’s research, see here.  1:03:30 – A paper by Dr. Stephen Wilson and colleagues, describing recovery of language ability following stroke as a function of the location of the lesion within the language network. 1:04:20 – A paper from Dr. Fedorenko’s lab on the small language networks of polyglots.  1:09:00 – For more on the Visual Word Form Area (or VWFA), see here. For discussion of Exner’s Area, see here.   1:14:30 – For a discussion of the brain’s so-called default network, see here.  1:17:00 – See here for Dr. Fedorenko and colleagues’ recent paper on the function of language. For more on the question of what language is for, see our earlier episode with Dr. Nick Enfield.  1:19:00 – A paper by Dr. Fedorenko and Dr. Rosemary Varley arguing for intact thinking ability in patients with aphasia.  1:22:00 – A recent paper on individual differences in the experience of inner speech.   Recommendations Dr. Ted Gibson’s book on syntax (forthcoming with MIT press) Nancy Kanwisher, ‘Functional specificity in the human brain’    Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala.   Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: [email protected].    For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).
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  • Nestcraft
    How do birds build their nests? By instinct, of course—at least that's what the conventional wisdom tells us. A swallow builds a swallow's nest; a robin builds a robin's nest. Every bird just follows the rigid template set down in its genes. But over the course of the last couple of decades, scientists have begun to take a closer look at nests—they've weighed and measured them, they've filmed the building process. And the conventional wisdom just doesn't hold up. These structures vary in all kinds of ways, even within a species. They're shaped by experience, by learning, by cultural tradition. When we look at a bird's nest, we're looking at the product of a flexible mind.   My guest today is Dr. Susan Healy. Sue is a Professor in the School of Biology at the University of St Andrews and an expert in birds—their behavior, their cognition, and their evolution. For more than a decade now, Sue has been pioneering a new chapter in the study of birds' nests.    Here, Sue and I talk about some of the most impressive nests (as well as some of the least impressive). We do a bit of Birds' Nests 101—the different forms they take, the functions they serve, which sex does the building, how these structures evolved, and more. We dig into the mounting evidence that birds are in fact quite flexible in their building practices, that they learn from others and from their own experience. We discuss recent evidence from Sue's team that cultural traditions shape the weaver nests of the Kalahari. And we talk about what nests might have in common with songs and tools. Along the way, we touch on: pigeon nests and hummingbird nests, dinosaur nests and chimpanzee nests; Alfred Russel Wallace; commonalities in the techniques of human weavers and weaver birds; whether bird personality might be reflected in nest style; the brain basis of nest-building; and a whole lot else.    Hope you enjoy this one, friends. On to my conversation with Dr. Sue Healy.    A transcript of this episode is availalble here.    Notes and links 2:30 – An example of a post on the (seemingly inadequate) nests of pigeons.  7:30 – An article featuring a variety of weaverbird nests. 10:30 – Alfred Russel Wallace’s essay on birds' nests is available here.  15:00 – A paper from another branch of Dr. Healy’s work, on hummingbirds.  16:00 – The 1902 book by Charles Dixon on the science of “caliology.” 17:00 – An example of research done by the Colliases on weavers.  19:00 – For an up-to-date primer on birds’ nests—covering a number of the questions we discuss here—see Dr. Healy’s recent primer. 22:30 – An article about hummingbird eggs.  28:30 – A paper by Dr. Healy and colleagues on the use of human materials in birds’ nests. Our episode on animal medication is here.  31:30 – An article about bowerbirds and how they decorate their bowers. 35:00 – An article on the evolution of birds’ nests, covering the question of what dinosaur nests were like.  43:00 – A paper by Dr. Healy and colleagues on the impact of temperature and earlier breeding success on nest size. 51:00 ­– For more discussion of personality in animals, including in clonal fish, see our episode with Kate Laskowski.  55:00 – A study by Dr. Healy and colleagues showing that zebra finches build nests that match the color of the walls.  58:00 – A study by Dr. Healy and colleagues looking at how zebra finches learn aspects of nest-building from familiar individuals. 59:00 – A study by Dr. Healy and colleagues, led by Maria Tello-Ramos, about architectural traditions in an African sociable weaver species.   1:07:00 – An article by Michael Arbib, Dr. Healy, and colleagues on connections between tool use, language, and nest-building.  1:11:00 – An initial study on the brain basis of nest-building in zebra finches. A further study on the same topic.  1:12:30 – A paper by Hopi E. Hoekstra and colleagues on the genetics of burrow-building in deer mice.   1:14:00 – An exploration of the idea that humans initially learned their weaving skills from weaver birds.    Recommendations Books by Mike Hansell (see here, here, and here) Birds’ nests, Charles Dixon Avian architecture, Peter Goodfellow Animal architects, James Gould & Carol Gould   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala.  Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: [email protected].    For updates about the show, visit our website or follow us on Bluesky (@manymindspod.bsky.social).
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  • Animal, heal thyself
    What happens to animals when they get sick? If they’re pets or livestock, we probably call the vet. And the vet may give them drugs or perform a procedure. But what about wild animals? Do they just languish in misery? Well, not so much. It turns out that animals—from bees to butterflies, porcupines to primates—medicate themselves. They seek out bitter plants, they treat wounds, they amputate limbs, they eat clay—the list goes on. This all raises an obvious question: How do they know to do this? How do they know what they know about healing and medicine? It also invites a related question: How do we humans know what we know?   My guests today are Dr. Jaap De Roode and Dr. Michael Huffman. Jaap is a biologist at Emory University, and has studied animal medication in insects; he’s also the author of a forthcoming book about animal medication across the tree of life. Mike is a primatologist at the University of Nagasaki, and made some of the very first observations about animal self-medication in chimpanzees in the 1980s.   Here, Jaap, Mike, and I talk about how they found their way into this field, in both cases kind of by accident. We discuss what defines animal medication generally as well as what defines its more specific subtypes—social medication, allomedication, prophylactic medication, and others. We consider how animals know what they know about healing—whether these medicinal behaviors are mostly driven by innate tendencies, by individual experimentation, by social learning, or by some combination. We talk about the evidence that many of the medical insights that humans have had over the years actually began with observations of animals. Along the way, we touch on medicinal amputation and medicinal cannibalism, geophagy, leaf-folding in primates, animal quackery, bear medicine, why lemurs rub themselves with millipedes, and the anti-parasitic power of cigarette butts.   Alright, friends, this is a fun one. Enjoy!   A transcript of this episode is available here.      Notes and links   3:00 – A paper describing how birds in Mexico City line their nests with cigarette butts. A follow-up experiment showing that they do so in response to increased presence of parasites.   7:30 – Dr. Huffman’s original study of self-medication by a chimpanzee, using Vernonia amygdalina in Tanzania.   15:00 – Dr. de Roode’s study on “transgenerational medicine” in monarch butterflies.   20:00 – For an overview of animal medication, including definitions and examples of its subtypes, see this recent primer by Dr. de Roode and Dr. Huffman.   25:00 – The recent study on “medicinal amputation” in ants. The recent study on “medicinal cannibalism” in ants.   30:00 –  For an overview of medication in insects, see this recent paper by Dr. de Roode and colleagues.   34:00 – The paper by Mascaro and colleagues showing that chimpanzees treat wounds (to the self and others) by applying insects.   38:00 – A recent review of geophagy—soil eating—in primates by Paula Pebsworth, Dr. Huffman, and colleagues.     43:00 – A paper by Dr. Huffman and colleagues on chimpanzee leaf-swallowing in the wild. Dr. Huffman later did a series of experimental studies on this behavior, investigating the role of social learning—see here and here.   46:00 – An article on how goats learn to eat what they eat.         52:00 – An article describing the medicinal properties of Vernonia amygdalina.   54:00 ­– A study showing that lemurs rub each other with millipedes in a possible case of animal medication.   57:00 – A paper by Dr. Huffman in which he describes the use of mulengelele by a sick porcupine. A recent review by Dr. Huffman of what traditional healers have learned from observations of animal medication.   1:01:00 – An article about propolis and its medicinal use in bees; an article about its medicinal potential in humans.       Recommendations Doctors by Nature, Jaap de Roode (forthcoming) Wild Health, Cindy Engel Nourishment, Fred Provenza ‘Five clever animals that treat and prevent their own illnesses,’ National Geographic     Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala.   Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: [email protected].    For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).
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  • The rise of machine culture
    The machines are coming. Scratch that—they're already here: AIs that propose new combinations of ideas; chatbots that help us summarize texts or write code; algorithms that tell us who to friend or follow, what to watch or read. For a while the reach of intelligent machines may have seemed somewhat limited. But not anymore—or, at least, not for much longer. The presence of AI is growing, accelerating, and, for better or worse, human culture may never be the same.    My guest today is Dr. Iyad Rahwan. Iyad directs the Center for Humans and Machines at the Max Planck Institute for Human Development in Berlin. Iyad is a bit hard to categorize. He's equal parts computer scientist and artist; one magazine profile described him as "the Anthropologist of AI." Labels aside, his work explores the emerging relationships between AI, human behavior, and society. In a recent paper, Iyad and colleagues introduced a framework for understanding what they call "machine culture." The framework offers a way of thinking about the different routes through which AI may transform—is transforming—human culture.    Here, Iyad and I talk about his work as a painter and how he brings AI into the artistic process. We discuss whether AIs can make art by themselves and whether they may eventually develop good taste. We talk about how AIphaGoZero upended the world of Go and about how LLMs might be changing how we speak. We consider what AIs might do to cultural diversity. We discuss the field of cultural evolution and how it provides tools for thinking about this brave new age of machine culture. Finally, we discuss whether any spheres of human endeavor will remain untouched by AI influence.    Before we get to it, a humble request: If you're enjoying the show—and it seems that many of you are—we would be ever grateful if you could let the world know. You might do this by leaving a rating or review on Apple Podcasts, or maybe a comment on Spotify. You might do this by giving us a shout-out on the social media platform of your choice. Or, if you prefer less algorithmically mediated avenues, you might do this just by telling a friend about us face-to-face. We're hoping to grow the show and the best way to do that is through listener endorsements and word-of-mouth. Thanks in advance, friends.   Alright, on to my conversation with Dr. Iyad Rahwan. Enjoy!   A transcript of this episode is available here.   Notes and links 3:00 – Images from Dr. Rahwan's ‘Faces of Machine’ portrait series. One of the portraits from the series serves as our tile art for this episode. 11:30 – The “stochastic parrots” term comes from an influential paper by Emily Bender and colleagues. 18:30 – A popular article about DALL-E and the “avocado armchair.” 21:30 – Ted Chiang’s essay, “Why A.I. isn’t going to make art.” 24:00 – An interview with Boris Eldagsen, who won the Sony World Photography Awards in March 2023 with an image that was later revealed to be AI-generated.  28:30 – A description of the concept of “science fiction science.” 29:00 – Though widely attributed to different sources, Isaac Asimov appears to have developed the idea that good science fiction predicts not the automobile, but the traffic jam.  30:00 – The academic paper describing the Moral Machine experiment. You can judge the scenarios for yourself (or design your own scenarios) here. 30:30 – An article about the Nightmare Machine project; an article about the Deep Empathy project. 37:30 – An article by Cesar Hidalgo and colleagues about the relationship between television/radio and global celebrity. 41:30 – An article by Melanie Mitchell (former guest!) on AI and analogy. A popular piece about that work.   42:00 – A popular article describing the study of whether AIs can generate original research ideas. The preprint is here. 46:30 – For more on AlphaGo (and its successors, AlphaGo Zero and AlphaZero), see here. 48:30 – The study finding that the novelty of human Go playing increased due to the influence of AlphaGo. 51:00 – A blogpost delving into the idea that ChatGPT overuses certain words, including “delve.” A recent preprint by Dr. Rahwan and colleagues, presenting evidence that “delve” (and other words overused by ChatGPT) are now being used more in human spoken communication.  55:00 – A paper using simulations to show how LLMs can “collapse” when trained on data that they themselves generated.  1:01:30 – A review of the literature on filter bubbles, echo chambers, and polarization. 1:02:00 – An influential study by Dr. Chris Bail and colleagues suggesting that exposure to opposing views might actually increase polarization.  1:04:30 – A book by Geoffrey Hodgson and Thorbjørn Knudsen, who are often credited with developing the idea of “generalized Darwinism” in the social sciences.  1:12:00 – An article about Google’s NotebookLM podcast-like audio summaries. 1:17:3 0 – An essay by Ursula LeGuin on children’s literature and the Jungian “shadow.”    Recommendations The Secret of Our Success, Joseph Henrich “Machine Behaviour,” Iyad Rahwan et al.   Many Minds is a project of the Diverse Intelligences Summer Institute, which is made possible by a generous grant from the John Templeton Foundation to Indiana University. The show is hosted and produced by Kensy Cooperrider, with help from Assistant Producer Urte Laukaityte and with creative support from DISI Directors Erica Cartmill and Jacob Foster. Our artwork is by Ben Oldroyd. Our transcripts are created by Sarah Dopierala. Subscribe to Many Minds on Apple, Stitcher, Spotify, Pocket Casts, Google Play, or wherever you listen to podcasts. You can also now subscribe to the Many Minds newsletter here! We welcome your comments, questions, and suggestions. Feel free to email us at: [email protected].  For updates about the show, visit our website or follow us on Twitter (@ManyMindsPod) or Bluesky (@manymindspod.bsky.social).
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