New Books in Science

Scientists are learning more and more about how brain activity controls behavior and how neural circuits weigh alternatives and initiate actions. As we probe ever deeper into the mechanics of decision making, many conclude that agency--or free will--is an illusion. In Free Agents: How Evolution Gave Us Free Will (Princeton UP, 2023), leading neuroscientist Kevin Mitchell presents a wealth of evidence to the contrary, arguing that we are not mere machines responding to physical forces but agents acting with purpose.Traversing billions of years of evolution, Mitchell tells the remarkable story of how living beings capable of choice arose from lifeless matter. He explains how the emergence of nervous systems provided a means to learn about the world, granting sentient animals the capacity to model, predict, and simulate. Mitchell reveals how these faculties reached their peak in humans with our abilities to imagine and to be introspective, to reason in the moment, and to shape our possible futures through the exercise of our individual agency. Mitchell's argument has important implications--for how we understand decision making, for how our individual agency can be enhanced or infringed, for how we think about collective agency in the face of global crises, and for how we consider the limitations and future of artificial intelligence.An astonishing journey of discovery, Free Agents offers a new framework for understanding how, across a billion years of Earth history, life evolved the power to choose, and why it matters. Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

Past human space missions were protected by Earth’s magnetic field and a measure of luck, but future missions beyond the Earth–Moon system will face far greater and longer-lasting radiation risks that cannot be managed by route planning alone. The authors argue that safe deep-space exploration will require major advances in understanding radiation, developing effective shielding, and mitigating both acute and long-term health effects, rather than relying on chance. Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

James Franklin, Emeritus professor and leading realist philosopher, explores fascinating connections between mathematics, ethics, and probability. He argues that absolute necessities in these fields are objective truths, accessible to all. Franklin critiques modern education for sidelining genuine proofs, emphasizing how mathematics trains precise thought. He discusses the inherent worth of individuals as a foundation for ethics, and raises intriguing questions about AI’s understanding of necessity, painting a picture of a reality rich with interlinked truths.

Yossi Yovel, a Professor of Zoology and neurobiologist, dives into the fascinating world of bats in his latest book. He explores the social structures of vampire bats and their surprising altruism, revealing how they share food and form bonds. Yovel also discusses bat communication, from echolocation to local dialects, and the role of machine learning in decoding their calls. Additionally, he highlights the evolutionary journey of bats, examining their unique adaptations and the challenges they face from human impact and environmental changes.

In this episode from the Institute’s vault, we revisit an October 2007 presentation by theoretical physicist and Institute Fellow Jeremy Bernstein on J. Robert Oppenheimer, the atomic bomb, and the nuclear arms race that followed. As a physicist, Bernstein made contributions to elementary particle physics and cosmology, working at the Institute for Advanced Study in Princeton, New York University, and Stevens Institute of Technology, where he became Professor Emeritus in 1967. He held visiting positions at CERN, Oxford, and the École Polytechnique, among others, and was the last surviving senior member of Project Orion, which studied the potential of nuclear pulse propulsion for space travel. Bernstein was a staff writer for The New Yorker for over three decades. He wrote regularly for The New York Review of Books, The Atlantic Monthly, and Scientific American, and authored over two dozen books, including Oppenheimer: Portrait of an Enigma (2004). He passed away on April 20th, 2025 at the age of 95. Here he is in 2007, discussing the topics on which he made a great contribution and helped illuminate. Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

Peoples & Things host, Lee Vinsel, talks with Thomas Haigh, Professor and Chair of History and affiliate of the Department of Computer Science at University of Wisconsin-Milwaukee, about his forthcoming book on the history of artificial intelligence. The book, which has had the working title _Artificial Intelligence: The History of a Brand_ with the final title to be determined, examines how and why historical actors have decided to apply the term “artificial intelligence” to a variety of disparate computing technologies that often have very little to do with one another. Vinsel and Haigh also talk about how the book’s lessons apply to our current Generative AI bubble and an assortment of other fun topics along the way. Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

A thrilling tour of Earth that shows the search for extraterrestrial life starts in our own backyard.Is there life off Earth? Bound by the limitations of spaceflight, a growing number of astrobiologists investigate the question by studying life on our planet. Astronomer and author Jon Willis shows us how it’s done, allowing readers to envision extraterrestrial landscapes by exploring their closest Earth analogs in The Pale Blue Data Point: An Earth-Based Perspective on the Search for Alien Life (U Chicago Press, 2025). With Willis, we dive into the Pacific Ocean from the submersible-equipped E/V Nautilus to ponder the uncharted seas of Saturn’s and Jupiter’s moons; search the Australian desert for some of Earth’s oldest fossils and consider the prospects for a Martian fossil hunt; visit mountaintop observatories in Chile to search for the telltale twinkle of extrasolar planets; and eavesdrop on dolphins in the Bahamas to imagine alien minds.With investigations ranging from meteorite hunting to exoplanet detection, Willis conjures up alien worlds and unthought-of biological possibilities, speculating what life might look like on other planets by extrapolating from what we can see on Earth, our single “pale blue dot”—as Carl Sagan famously called it—or, in Willis’s reframing, scientists’ “pale blue data point.” Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

Andrew H. Jaffe, a cosmologist and director of the Imperial Center for Inference and Cosmology, dives into how models and probability shape our understanding of the universe. He discusses the evolution of astronomical models from Copernicus to Newton and the role of probability in scientific inference. Jaffe also compares Bayesian and frequentist approaches, linking them to quantum mechanics and entropy. His insights reveal that far from being fixed, knowledge is about adapting our models to new data, merging philosophy with cutting-edge science.

In How Progress Ends: Technology, Innovation, and the Fate of Nations (Princeton University Press, 2025), Carl Benedikt Frey challenges the conventional belief that economic and technological progress is inevitable. For most of human history, stagnation was the norm, and even today progress and prosperity in the world's largest, most advanced economies--the United States and China--have fallen short of expectations. To appreciate why we cannot depend on any AI-fueled great leap forward, Frey offers a remarkable and fascinating journey across the globe, spanning the past 1,000 years, to explain why some societies flourish and others fail in the wake of rapid technological change. By examining key historical moments--from the rise of the steam engine to the dawn of AI--Frey shows why technological shifts have shaped, and sometimes destabilized, entire civilizations. He explores why some leading technological powers of the past--such as Song China, the Dutch Republic, and Victorian Britain--ultimately lost their innovative edge, why some modern nations such as Japan had periods of rapid growth followed by stagnation, and why planned economies like the Soviet Union collapsed after brief surges of progress. Frey uncovers a recurring tension in history: while decentralization fosters the exploration of new technologies, bureaucracy is crucial for scaling them. When institutions fail to adapt to technological change, stagnation inevitably follows. Only by carefully balancing decentralization and bureaucracy can nations innovate and grow over the long term--findings that have worrying implications for the United States, Europe, China, and other economies today. Through a rich narrative that weaves together history, economics, and technology, How Progress Ends reveals that managing the future requires us to draw the right lessons from the past. Carl Benedikt Frey is the Dieter Schwarz Associate Professor of AI and Work at the Oxford Internet Institute and Oxford Martin Citi Fellow at the Oxford Martin School, both at the University of Oxford. Caleb Zakarin is editor of the New Books Network. Learn more about your ad choices. Visit megaphone.fm/adchoicesSupport our show by becoming a premium member! https://newbooksnetwork.supportingcast.fm/science

Craig Hogan, an astrophysicist at the University of Chicago and former director at Fermilab, dives into the mysteries of the universe. He explains the cosmic microwave background (CMB) as the primordial afterglow from the Big Bang, detailing its surprising uniformity and what it reveals about our universe. Hogan discusses the anomalies that challenge existing theories and the potential need for new physics. He also explores how tiny fluctuations in the CMB helped form galaxies and emphasizes the exciting future of cosmic research through advanced observatories.