In this episode, Xavier Bonilla has a dialogue with Tamim Ansary about a global history of humans through time. They discuss the main theme of interconnectedness, language, symbols, and culture, origins and nomadic peoples, early trading, rise of city states, religion and belief systems, the Crusades, Mongol Empire, Ottoman Empire, colonialism, empires and nation states, and many more topics.

Tamim Ansary is the author of many books, including Destiny Disrupted and The Invention of Yesterday. He has published essays and commentary in the San Francisco Chronicle, Salon, the Los Angeles Times, and more. Born in Afghanistan in 1948, he moved to the US in 1964. He lives in San Francisco.

In this episode, Xavier Bonilla has a dialogue with Davis Samson on the evolution of sleep. They discuss various sleep misconceptions, why we need sleep, stages of sleep, and the physiological and social aspects of sleep. They also talk about the evolution of circadian rhythms, napping, evolutionary differences, dreams, paleo sleep, and many more topics.

David R. Samson is associate professor of evolutionary anthropology at the University of Toronto and the author of Our Tribal Future: How to Channel Our Foundational Human Instincts into a Force for Good. His pioneering research has been featured in National Geographic, Time, and The New York Times and on NPR and the BBC. He is the author of the latest book, The Sleepless Ape: The story of sleep in human evolution.

In this episode, Xavier Bonilla has a dialogue with Katja Hoyer about the Weimar Republic. They give an overview of the Weimar Republic, voting and role of economics, major figures, how Hitler won his election, Nazi rule under Weimar Republic, negative views against Jews, Weimar after World War II, and many more topics.

Katja Hoyer is a historian and journalist who is visiting research fellow at King’s College London and a Fellow of the Royal Historical Society. She is also Global Opinions contributing columnist for The Washington Post. Her main research area is the history of modern Germany. She is the author of Blood and Iron: The Rise and Fall of the German Empire 1871-1918 , Beyond the Wall: A History of East Germany , and the most recent book, Weimar: Life on the edge of catastrophe.

In this episode, Xavier Bonilla has a dialogue with Donna Jackson Nakazawa about rumination. They define rumination, talk about belonging, the Default Mode Network, MIST framework, therapy, various techniques, and many more topics.

Donna Jackson Nakazawa is the author and writer of many books that explore the intersection of neuroscience, immunology, and emotion, including The Angel and the Assassin, named one of the best books of 2020 by Wired magazine, and Childhood Disrupted, which was a finalist for the Books for a Better Life Award. Her work has appeared in Wired, Stat, The Boston Globe, The Washington Post, Health Affairs, Parenting, AARP Magazine, and Glamour, and has been featured on the cover of Parade and in Time; she has appeared on Today, NPR, NBC News, and ABC News. Jackson Nakazawa is also the creator and founder of the narrative writing-to-heal program Your Healing Narrative: Write-to-Heal with Neural Re-Narrating.™ She is a regular speaker at universities, including the Harvard Division of Science Library Series, Johns Hopkins University, and the University of Arizona. Her recent book, Mind Drama: The science of rumination and how to outwit your inner defeatist.

In this episode, Xavier Bonilla has a dialogue with Peter Mancall about the early years of North America. They discuss what is America, importance of Maize and landscape of pre-Columbian America, Native Peoples in the middle of the 15th century, Norse discoveries, Columbus, French in Canada, Cortes in Mexico, British involvement, religion, slavery, and the legacy of early North American history.

Peter C. Mancall is Distinguished Professor; the Andrew W. Mellon Professor of the Humanities; Professor of History, Anthropology, and Economics; and the Linda and Harlan Martens Director of the USC-Huntington Early Modern Studies Institute. He is an elected fellow of the Society of American Historians and the Royal Historical Society and an elected member of the American Antiquarian Society and the Colonial Society of Massachusetts. He was the Harmsworth Professor of American History at Oxford University in the 2019-2020 academic year. He is the author of many books, including the recent book, Contested Continent: The struggle for North America, c. 1000-1680.

In this episode, Xavier Bonilla has a dialogue with Adrian Goldsworthy about the history of Athens and Sparta. They provide an overview of Athens and Sparta, Aegean history, and city-states in Ancient Greece. They talk about why tyranny did not work in these early city-states, Persian War with Greece, Peloponnesian War, Alexander the Great, legacies of Athens and Sparta, and many more topics.

Adrian Goldsworthy is a historian and author. He has his DPhil from Oxford University and has conducted research at Cardiff University and taught at King’s College London and University of Notre Dame. He is the author of numerous books on Roman history.

In this episode, Xavier Bonilla has a dialogue with H.W. Brands about the life of George Washington. They discuss Washington as an enigma, his social and political statue, his upbringing and temperament, and his relationship with his wife and his relationship with slavery. They also talk about Washington as a general, as president, and the legacy of Washington.

H. W. Brands holds the Jack S. Blanton Sr. Chair in History at the University of Texas at Austin. He has written more than a dozen biographies and histories, including The General vs. the President, a New York Times bestseller. Two of his biographies, The First American and Traitor to His Class, were finalists for the Pulitzer Prize. He is the author of the latest book, American Patriarch: The life of George Washington.

In this episode, Xavier Bonilla has a dialogue with Ayşe Baltacıoğlu-Brammer about belonging among various ethnic and religious groups in the early and middle Ottoman period. They discuss the landscape of religious and sectarian divides in the early Ottoman Empire, Turkic origins of the Safavids and Sufis, the Qizilbash, and various sociocultural variables. They talk about immigration between the Safavids and the Ottomans, the Safavid’s turn from Sufi to Shia, Qizilbash documents and Ottoman surveillance, remnants today, and many more topics.

Ayşe Baltacıoğlu-Brammer is Assistant Professor of History and Middle Eastern and Islamic Studies & Steering Committee Chair of the Ottoman Studies Initiative (OTS-NYU) at New York University. She has her PhD from The Ohio State University. She specializes in Middle Eastern history, with a focus on early modern Ottoman and Safavid Empires. She is the author of the book, Boundaries of Belonging: Sectarianism and Statecraft in the Early Modern Ottoman Empire.