Gresham College Lectures

Since 1945 Hitler and the Nazis have been the Western world’s one fixed moral reference point: the way we know what evil is. But that consensus has always been more fragile than it felt, and now it is unravelling. This lecture will trace how we came to build our values around the memory of the Second World War, why that consensus isn’t enough to deal with our current predicaments – and why the res...

How will it all end? Predicting the far future of our Universe depends on understanding its present. This lecture starts with what seems to be a paradox in modern cosmology: that we have a model that does a fantastic job of explaining what we see, but which says 95% of the Universe is in forms (dark matter and dark energy) that we don’t understand. From there, we get a quick tour of the next 100 b...

“Scary”, “Worried”, “Dangerous” were some of the most frequent words to describe AI in a recent UK Government public survey. Do you fear, as many do, that AI will lead to us becoming second-class entities? In this first lecture, we will explore this ascendency, considering how notions of intelligence, sentience, perception, consciousness and reasoning are being framed and challenged in an AI-centr...

Written in the era of the founding of Gresham College, Shakespeare’s A Midsummer Night’s Dream portrays the hypnotic dreaminess of a fairy world in which the real and the fantastic are blurred. This lecture explores how the innate musicality of Shakespeare’s original has provoked adaptations across the centuries, including Ashton and Balanchine’s ballets based on Mendelssohn’s incidental music for...

This lecture looks at the evolution of Guantánamo Bay, first as a focal point of Haitian immigration in 1991 (Gitmo 1.0), to the more famous detention of terror suspects in 2002 (Gitmo 2.0), and back to immigration in 2025. We will explore how Gitmo 3.0 is probably already over, and how we were able to head it off so quickly through legal challenges. However, Secretary of State Marco Rubio has sai...

The reflection of my right hand in a mirror is a left hand that looks similar yet is very different from the right. Many natural structures such as proteins, climbing vines, and seashells exhibit the same property known as chirality. Some of these objects are clearly left-handed, some are right-handed, some are both. The ultimate origin of chirality is one of Nature's great mysteries. In this...

Planet Earth is an intricate and interconnected system, with some fundamental rules that we usually ignore. But we are part of our planet, not separate to it or just perched on top of it. This lecture will consider the two primary rules of Earth: that energy continually flows through the system (in from the Sun and then out again to space) and that matter/atoms must be continually recycled and use...

Ever since modern economic growth began three centuries ago, people have suffered from periodic bursts of anxiety about the technologies of the time taking on the work that they do. This opening lecture explores the history of ‘automation anxiety’ – from the Luddites who smashed framing machines at the start of the Industrial Revolution in Britain to the protestors who set driverless cars on fire...

ttps://x.com/GreshamCollege  Watch the Q&A session here: https://youtu.be/tv554JY9TPU In 1588, the young Galileo delivered some lectures that were impressive enough to secure him a mathematics professorship at the University of Pisa. His subject? The geometry of Dante’s Inferno. In this lecture we’ll look at some of Galileo’s deductions, and how the questions raised may have influenced his lat...

The lecture shares perspectives from global history, comparative politics, and international relations to revaluate whether the twentieth-century collapse of European colonialism was as definitive as often portrayed. It suggests that, while in some ways, ending European Empires remade our contemporary world, in others processes of decolonization are far from complete. This lecture was recorded by...

Decolonisation movements sought to win sovereignty and control over national resources, especially oil. This lecture explores oil’s influence on national independence struggles, from the 1955 Bandung Conference to the rise of OPEC and the nationalisation of crude reserves. It examines how these shifts reshaped global power, exposing both the successes and limits of decolonisation, and their contem...

Shanawdithit was a woman who bore witness to the death of her world in the early nineteenth century, creating the only first-hand account we have of the Beothuk people from the Island of Newfoundland.  This lecture seeks to narrate the history of her fascinating and important life, alongside the history of her island, which was England’s first transatlantic colony. It will illuminate the profound...

Ever feel like the financial world works against you? This lecture discusses "behavioral finance" – how our brains get tricked by money matters. We will explore how to use these insights to your advantage, navigate conflicts of interest with financial "experts," and make smarter decisions for yourself and your investments.  This lecture was recorded by Raghavendra Rau on the 16...

The lecture will examine the pros and cons of democracy in today's world, focusing on the importance of domestic and international rule of law to maintain democratic ideals, which are fragile in times of conflict. There will be examples given, highlighting the current War in Ukraine and the political situation in the United States, the influence of other players and the legacy of the Cold War...

Health over the last 150 years in the UK and internationally has been transformed and this rapid rate of change will continue. Improvements in public health and the shifting demographic structure are altering the trajectory and frequency of disease. Advances in science including new drug classes, diagnostics and AI are changing what is possible in diagnosis and treatment. This lecture will conside...

How long is the coastline of Britain? What is a rhombicuboctahedron? Which US president proved Pythagoras’s theorem? These and many other intriguing questions will be addressed in this lecture on renowned mathematical equations and their history. The selected equations span various areas of mathematics and cover a timeline of 4000 years, from early geometry to fractal art. This lecture was recorde...

We perceive the world through the processing of information given by our senses. Sometimes, this processing is faulty leading to illusions: shapes or sounds that we perceive differently from their physical reality. These illusions have delighted children and scientists alike for centuries. This lecture reveals how simple geometric illusions can be modelled mathematically, based on our understandin...

Our understanding of the human immune system today is vastly different from that of 50 years ago. This knowledge has led to immune-based therapies that would have seemed like science fiction to our grandparents: monoclonal antibodies, T-cell therapies, anti-cancer vaccines, precision immune suppression – the list is endless. In this lecture, we look to the future and ask, “What next for immunity?”...

This is the fourth lecture from the Gresham Festival of Musical Ideas. https://www.gresham.ac.uk/watch-now/series/musical-ideas-2025 Professors Sarah Hart and Milton Mermikides reveal the deep connections between music and mathematics. Whether that’s the Euclidean rhythms that shape funky grooves, the set theory that maps every possible chord, or a live rendering of the geometric elegance of Gresh...

This is the first lecture from the Gresham Festival of Musical Ideas. https://www.gresham.ac.uk/watch-now/series/musical-ideas-2025 Musical instruments have been found in the archaeological record from at least 40,000 years ago and despite the diversity of human civilization, we are yet to find a culture which lacks music. Other species also make ‘music’ – from a grasshopper’s chirp to a nightinga...

This is the second lecture from the Gresham Festival of Musical Ideas. https://www.gresham.ac.uk/watch-now/series/musical-ideas-2025 Why does a rhythm make us tap our feet—or even get up and dance? In conversation with Professor Milton Mermikides, neuroscientist Professor Morten Kringelbach reveals how the brain finds pleasure, meaning, and movement in music. Drawing on extensive brain imaging, an...

This is the third lecture from the Gresham Festival of Musical Ideas. https://www.gresham.ac.uk/watch-now/series/musical-ideas-2025 This dialogue presents the what and why of Ancient Greek music, and its profound role in philosophy, society and the individual. Education without music was an impossibility in ancient Greece; virtue without music, equally so. One scholar (writing in the late twentiet...

This is the fifth and final lecture from the Gresham Festival of Musical Ideas. https://www.gresham.ac.uk/watch-now/series/musical-ideas-2025 Professors Lintott and Mermikides present and discuss historical and contemporary musical representations of astronomical data including Pythagoras’s parallelism of tuning purity and celestial movement, Plato’s cosmic harmony in Timaeus, Kepler’s representat...

Accra’s James Fort is an iconic monument for Ghana and modern Africa. This lecture explores the fort's evolution -from its role as a trading post in the early European-African encounters, through its significance during the trans-Atlantic trade and enslavement, to its later use as a modern colonial prison in the post-independence era. It also explores its connection to Ghana's liberation...

This lecture considers ‘You’ll Never Walk Alone’ from Carousel (1945). Perhaps Rodgers and Hammerstein’s most operatic song, it was originally written for Metropolitan Opera star Christine Johnson but has gone on to be recorded by artists as diverse as Elvis Presley and Marcus Mumford and sung at both the Last Night of the Proms and Liverpool Football Club. This lecture will include live performan...