Binary thinking is out of fashion. But what about biological sex? Whatever we might say about diversity and fluidity, the ideas of “male” and “female” seem essential in biology. I’ve taught the subject. I’ve drawn bees and flowers, with arrows from anthers to ovaries. I’ve used the terms “dad cell” and “mother cell” while doing so. I don’t know how I could have done it any differently. And maybe that’s just fine. Human sex cells are binary: sperm and egg. But here’s the twist: humans aren’t sex ...
May 09, 2025•1 hr 2 min•Ep. 59
And so it ends! In the final episode of The Origins of Humankind , we explore the aftermath of the story so far—the story of how one peculiar species, Homo sapiens , evolved, spread, and outlived its relatives. Guiding us through this final chapter is Johannes Krause once again. Together, we uncover the emerging picture of the global spread of farming, pastoralism, and other key ingredients of modernity. Along the way, we explore some of the central questions of history—from the origins of inequ...
Apr 25, 2025•1 hr 3 min•Ep. 58
The time has come: This is where our story truly begins. In Episode 4 of The Origins of Humankind , we finally turn the spotlight on Homo sapiens . Guiding us through this journey is Johannes Krause , director of the Max Planck Institute for Evolutionary Anthropology and a pioneer of one of the greatest scientific revolutions of our time: the science of ancient DNA.This ability to extract DNA from fossils has transformed our understanding of the human past—giving us tools to tell a genuinely glo...
Apr 16, 2025•1 hr 10 min•Ep. 57
Things are about to get personal... In episode 3 of The Origins of Humankind , we zoom into the birth and spread of humanity itself. Our guide is the iconic Chris Stringer, one of the most influential paleoanthropologists alive. Together, we trace the origins of our genus and the emergence of Homo sapiens as the last surviving human species. While doing this, we meet many oddities, such as rhino hunting along the River Thames, but we also explore some of the biggest questions in human evolution:...
Apr 09, 2025•1 hr 6 min•Ep. 57
The story continues! In part 2 of the Origins of Humankind, we trace the first steps of our ancestors after they left the chimpanzee lineage. To get humanity going, our ancestors had to wander through millions of years of what anthropologist Dean Falk has called the Botanic Age. It's a time shrouded in mist, yet it may hold the key to some of humanity’s most defining traits — from language and music to our clumsy toes and our large brains. On this walk through the mysteries of the Botanic Age, o...
Apr 02, 2025•50 min•Ep. 55
Welcome to the first episode of the Origins of Humankind! In this sweeping pilot, we cover the entire planetary backstory of human existence – from the origins of life to the climate change that kickstarted human evolution. Our expert guide on this journey is Tim Coulson , the Head of Biology at the University of Oxford and the author of A Universal History of Us . The episode explores questions such as: What is "life”? How did it begin? The surprising role of meteors (even before dinosaurs) Why...
Mar 25, 2025•1 hr 4 min•Ep. 54
Where do we come from? How did we get here? What kind of creature are we? The science of human origins has made great progress in answering these timeless questions. From carbon isotopes to ancient DNA extraction, we now have unprecedented tools to explore our past. But with all this detail, it’s easy to miss the forest from the trees. To fill this gap, On Humans has partnered with CARTA — a UC San Diego-based research unit on human origins. Together, we have designed a five-episode journey to d...
Mar 24, 2025•3 min
India’s history isn’t just the story of one nation—it’s the story of one-sixth of humanity. It’s also a lens for understanding how colonialism, democracy, and globalization shaped the modern world. This mini-series offers a human-centred perspective on that remarkable story, focusing on how politics and trade impacted the lives of ordinary Indians. In Part 1, we explored the decline of the Mughals and the long stretch of British rule. In Part 2, we turn to India's independent journey as the worl...
Feb 24, 2025•30 min•Ep. 53
Following the success of last year’s What About China - trilogy, I’m delighted to introduce a two-part series on the economic history of India. This series examines the origins of modern India by focusing on politics, poverty, and the experience of ordinary Indians from 1600 till today. The first episode covers the decline of the Mughals and the hugely controversial rule of the British East India Company and, later, the British Crown. One thing is clear: Most Indians lived in poverty when th...
Feb 14, 2025•1 hr 7 min•Ep. 52
Why are history books so full of men? Why have so many societies treated women as property? In short, why is patriarchy so pervasive? A casual thinker might find an easy answer from biology. Men tend to be bigger and stronger. Hence, they get to run the show. “Just look at chimpanzees!” But this explanation has obvious problems. Indeed, female chimpanzees don’t have much power in their groups. But female bonobos do. And looking at humans, not all human societies are patriarchal — not nearly to t...
Jan 28, 2025•55 min•Ep. 51
“We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes.” - Richard Dawkins in The Selfish Gene In 1976, Richard Dawkins published one of the most iconic science books of all time. It has inspired a generation of science enthusiasts. But unsurprisingly, many readers disliked the idea of being but a “robot vehicle” or a “survival machine” for some tiny molecules — especially if these molecules are best served by repeated pregnancies or donati...
Jan 16, 2025•20 min
Each year, the World Happiness Report ranks countries based on their citizen's life satisfaction. My home country, Finland, tends to come at the top. Sure. But lessons can we draw from all this? Beyond patting Finns on the back, can we distil some more insights from the report? I got to discuss this with Lara Aknin, co-editor of the World Happiness Report. In this previously unpublished clip, Aknin explains the major findings from the World Happiness Report and reveals the “single best predictor...
Jan 09, 2025•16 min
Many traditional societies accept polygyny (one man, many wives). Monogamy, too, is practised across the globe. But what about polyandry — one woman, many husbands? Is this a "dubious idea" as sometimes suggested by evolutionary theorists? In this bonus clip, anthropologist Katie Starkweather offers interesting examples of formal and informal polyandry from around the world. She also brings nuance to theories about jealousy in men and women. (This is a previously unpublished clip from my convers...
Jan 05, 2025•12 min
Happy New Year 2025! To celebrate, here is an encore of what proved to be the most popular episode of 2024. This rerun combines episodes 30 and 31 into one epic journey towards the frontiers of human understanding. My guest is Donald Hoffman. Our topics are consciousness, cosmos, and the meaning of life. Enjoy! Original show notes Laws of physics govern the world. They explain the movements of planets, oceans, and cells in our bodies. But can they ever explain the feelings and meanings of our me...
Dec 31, 2024•1 hr 29 min
This was fun! Last Wednesday saw the first-ever live recording of On Humans. The event was held at the London Business School, courtesy of the LBS's China Club. My guest was MIT Professor Yasheng Huang , familiar to regular listeners from the China trilogy published earlier this fall. In this new episode, we keep tackling the origins of modern China. This time, we draw insights from Huang's two upcoming books: Revisiting the Needham Question and Statism With Chinese Characteristics. The conversa...
Dec 23, 2024•1 hr 26 min
Persians. Romans. Chinese. Guptas. Abbasids. Mongols. British. The list of the world’s largest empires is a list of different peoples of Eurasia. With the sole exception of ancient Egypt, the Eurasian landmass has been the breeding ground for the largest empire of each moment in history. Why has Eurasia been so prone to large empires? Similarly, why did so many technological breakthroughs — from writing to gunpowder — occur in Eurasia? And how did these broader patterns of Eurasian history enabl...
Dec 02, 2024•1 hr 8 min•Ep. 50
Why do wars begin? How can we avoid them? Do countries wage wars whenever it suits their own goals? Or are wars a product of failed understanding and military madmen? These are questions at the centre of the study of war and peace. But for too long, the field of international relations has answered them by scavenging data from European history alone. To better understand the human capacity for peace, we need to understand military history more broadly. Or so argues David C. Kang, a professor of ...
Nov 15, 2024•51 min•Ep. 49
Our ancestors did not wage war. Warfare emerged only when humans started settling down and storing food. Indeed, some modern hunter-gatherers still enjoy the peaceful existence that once was the natural state of our species. Or so argued Douglas P. Fry, my guest in episode 8. I found many of his arguments convincing. For example, ancient cave art is surprisingly void of depictions of warfare. You can hear many more of his arguments in that episode, titled "Is War Natural For Humans?" But not all...
Nov 02, 2024•1 hr 6 min•Season 1Ep. 48
Daron Acemoglu has been awarded the 2024 Nobel-prize for Economic Science. This is a great testament to his impressive career. But the award was given for his early work on global inequality, together with Johnson and Robinson. The Swedish Riksbank did not pay attention to his new work on inequality within rich countries. Should we? And is his new theory even consistent with the old? I got to ask this from Acemoglu during our 2023 interview. I thought this would be a good time to re-post his ans...
Oct 18, 2024•21 min
You are given 20 dollars in cash. You can use it as you wish, but with one condition: you have to use it to treat yourself. Now imagine getting another 20 dollars next week. This time, the rules have changed: you must use the money to treat someone else. Which do you think will make you feel better? Contrary to many people's predictions, we tend to feel much better after spending the money on others. Whether we act it out or not, it seems that the human psyche is fine-tuned for generosity. Why? ...
Oct 01, 2024•55 min•Season 1Ep. 47
Where is China today? Will its rise continue to benefit the vast majority of its population? Or is Xi Jinping's increasingly repressive government committing one of the biggest blunders of modern history? This is the final episode in the China-trilogy, the product of hours of conversations I've had with ChinaTalk's Jordan Schneider and MIT professor Yasheng Huang . In part 1, we discussed the deep currents of Chinese history, shaping the country's destiny from its early technological lead to its...
Sep 21, 2024•31 min•Season 1Ep. 46
China's rise has shook the world. It has changed the lives of over a billion people in China. It has flooded humanity with cheap goods, from single-use toys to high-tech solar panels. And it has changed the logic of war and peace in the 21st Century. But how to explain China's dramatic rise? Was it due to the wisdom of China's leaders after Mao? Or was it all about foreign investors searching for cheap labor? Both and neither, argues MIT professor Yasheng Huang. Yes, the Chinese leaders learned ...
Sep 19, 2024•1 hr 6 min•Season 1Ep. 45
The West has ruled history — at least the way history has been written. This is a shame. To tell the story of humans, we must tell the story of us all. So what about the rest? What themes and quirks does their history hide? And what forces, if anything, prevented them of matching Europe’s rise? I aim to cover these topics for several countries and cultures over the next year. But I wanted to start with China. To do so, I’ve teamed up with Jordan Schneider, the host of ChinaTalk . Our guest is MI...
Sep 02, 2024•1 hr 13 min•Season 1Ep. 39
How do hunter-gatherers live? Do they wage war? Are they egalitarian? Do they really work for less? These are fascinating questions. I’ve tried my best at covering them on the show. (You can see a list of episodes below). But since 2023, the most controversial question has been on the role of women. Is it true that men hunt and women gather? Or is this theory, nicknamed “Man the Hunter”, a myth that should be buried for good? I've covered this sensitive topic on the podcast and in writing . And ...
Aug 01, 2024•49 min•Season 1Ep. 45
Agriculture changed everything. Traditionally, this “Neolithic Revolution” was celebrated for opening the gates of civilisation. Recently, it has been compared to the original sin. But whatever our take on agriculture, we should be puzzled by one thing: Why did our ancestors start to farm in the first place? It's not like early farmers had improved lives. Quite the opposite, they worked harder and suffered from worse health. So why did so early farmers stick to it? And why did farming spread so ...
Jul 15, 2024•58 min•Season 1Ep. 42
You are driving a car. The brakes stop working. To your horror, you are approaching a busy street market. Many people might be killed if you run into them. The only way to prevent a catastrophe is by turning fast to the right. Unfortunately, a lonely pedestrian might be killed if you do so. Should you turn? Many people say you should. After all, killing one is better than killing many. But following the same logic, would you kill an individual to collect their organs for people in dire need of o...
Jun 30, 2024•1 hr 12 min•Season 1Ep. 43
The Industrial Revolution played in the hands of the rich. A century after James Watt revealed his steam engine in 1776, the richest 1% owned a whopping 70% of British wealth. Then things changed. Across rich countries, inequality plummeted for decades. Join Branko Milanovic on this quest to understand the evolution of inequality during the building of modern prosperity. Our conversation ranges from Karl Marx to the "golden age” of American capitalism and from Yugoslavia’s market socialism to Ch...
Jun 18, 2024•36 min
The Industrial Revolution did not create modern prosperity. Indeed, the British workers saw little or no improvements in their wages between 1750 and 1850. They did, however, experience ever-worsening working conditions. Then things changed. Britain became a democracy. And with democracy, the economy changed, too. Or so argues Daron Acemoglu, one of the most influential economists alive. You can either listen to the episode here, or read some highlights and commentary at Onhumans.Substack.com/ A...
Jun 12, 2024•36 min
For millenia, patriarchy, population growth, and extractive elites made the world a bleak place for most humans. But there are good news, too: everything changed around 1870. And the changed happened due to the taming of the genius of people like Nikolai Tesla. So runs the argument my guest today, Brad DeLong. I will let him explain it to you. You can either listen to the episode here, or read some highlights and commentary at Onhumans.Substack.com/ ANNOUNCEMENT I'm writing a book! It is about t...
Jun 04, 2024•35 min
We live longer and grow taller than ever before. We are healthier and wealthier. Our ancestors could hardly have imagined a life of such prosperity. A future archaeologist would be equally puzzled. How did we become so rich so fast? What changes could have been so dramatic as to literally change the height of our species? Our modern prosperity is not the outcome of slow and steady progress. For most of human history, there was no upward trend in the health and wealth of the average human. The bi...
May 28, 2024•30 min
