The Conversations at The Interval

Interval events are lectures and discussions about topics including art, design, history, nature, technology, and time. They take place on Tuesday nights a couple times a month and feature artists, authors, entrepreneurs, scientists, and others who bring a long-term perspective.

Below you'll find information about upcoming and previous talks. All events are recorded and will eventually be released online. Video and audio of a select group of past talks is available on this site. We also have nearly 200 videos in our Seminar series which you can watch for free.

Upcoming Salon Talks

The Art and Science of Deep Time:
Conceiving the Inconceivable, 01800-01900

Caroline Winterer

Tuesday, September 4, 7:30pm

The ambition to think on the scale of thousands, millions, even billion of years emerged in the 19th century. Historian and author Caroline Winterer chronicles how the concept of “deep time” has inspired and puzzled thinkers in cognitive science, art, geology (and elsewhere) to become one of the most 
influential ideas of the modern era.

Caroline Winterer is Anthony P. Meier Family Professor in the Humanities and Director of the Stanford Humanities Center. She is an American historian, with special expertise in American thought and culture. Her most recent book is American Enlightenments: Pursuing Happiness in the Age of Reason. Other books include The Mirror of Antiquity: American Women and the Classical Tradition, 1750-1900, and The Culture of Classicism: Ancient Greece and Rome in American Intellectual Life, 1780-1910. She has received fellowships from among others the Mellon Foundation, the National Endowment for the Humanities, and the National Humanities Center. Her writing appears in numerous publications and academic journals. For mapping the social network of Benjamin Franklin she received an American Ingenuity Award from the Smithsonian Institution.

Exploring the Artificial Cryosphere

Nicola Twilley

Tuesday, September 18, 7:30pm

The network of thermal control that we have built over the past century has remade our entire relationship with food, for better and, in some ways, for worse. It is the invisible backbone of our food system—a man-made, distributed, and perpetual winter of mechanical refrigeration that we have built for our food to live in. In the nineteenth and twentieth centuries, the bold and curious set off on heroic expeditions to the icy wastes of the Arctic and Antarctic; in the twenty-first century, it is time for all of us to explore the mysteries of the artificial cryosphere. From banana ripening rooms to sleeping fish, and from reefers to juice tanks, we need to understand refrigeration's scope and impact, in order to take stock of what’s at stake. What have we gained and lost, in our wholehearted embrace of artificial cold? And what can we do to make sure its many benefits outweigh its enormous costs, going forward?

Nicola Twilley is a frequent contributor to The New Yorker magazine and a co-host of the podcast "Gastropod." She is at work on two books: one about refrigeration and the other on quarantine. She blogs at

San Francisco Time: 
The Photography of Fred Lyon

Fred Lyon

Tuesday, October 2, 7:30pm

Like people, cities change even as they stay the same.
 Fred Lyon is a time traveler with a camera and tales to tell. At 94-years-old, most as a professional photographer, this fourth generation San Franciscan has an eye for the city and stories to match. We'll show photos from Fred's books San Francisco, Portrait of a City: 1940-1960 and San Francisco Noir and plus selections from throughout his career including work for LIFE Magazine and personal photographs. In conversation he'll discuss his art and career; old friends like Herb Caen and Trader Vic Bergeron; and much more about San Francisco then and now.

Previous Salon Talks

Is Reflecting Sunlight from the Atmosphere a Bridge to the Future?

Kelly Wanser

August 14, 02018

Recent data shows damage from climate change rapidly increasing. There are many scientifically proposed methods (from the U.S. National Academy of Sciences, the U.K. Royal Society, and the American Geophysical Union among others) for directly reducing atmospheric heat. Yet to date there are still no formal research programs or capabilities to further explore these geoengineering ideas. What are the potential risks and benefits? How do we balance this effort vs. emissions reduction and restoring the natural system?
 Kelly Wanser of SilverLining will discuss and explain her work advocating, educating and coordinating research on this important effort to combat climate change.

Kelly Wanser is Executive Director of SilverLining which is dedicated to ensuring safety for people and ecosystems by driving options for reducing atmospheric heat. She works to accelerate adoption of technologies that help us understand and manage climate as a complex systems problem. Working closely with leading scientists, engineers, technologists and government leaders to advocate for increased geoengineering research, Ms. Wanser recently testified before the U.S. House Space, Science and Technology Committee. She is Board Director for BioCarbon Engineering, who use drone and AI technology to automate ecosystem restoration and is a Senior Advisor to BlackBirch, which uses hyper-local data to help businesses manage weather risk.

A Foundation of Trust: 
Building a Blockchain Future

Brian Behlendorf

July 31, 02018

An Open Source pioneer, Brian Behlendorf now leads the effort to
 build the infrastructure for trust as a service. In the past he helped build the foundations of the Web with the Apache Foundation and brought Open Source to the enterprise with At The Interval he’ll discuss his current work leading Hyperledger at the Linux Foundation to unlock blockchain’s potential beyond cryptocurrency.

Brian Behlendorf was a primary developer of the Apache Web server, the most popular web server software on the Internet, and a founding member of the Apache Software Foundation. He has also served on the board of the Mozilla Foundation since 02003 and the Electronic Frontier Foundation since 02013. He was the founding CTO of CollabNet and CTO of the World Economic Forum. Most recently, Behlendorf was a managing director at Mithril Capital Management LLC, a global technology investment firm.

The Short Now of Society’s Ills

Esther Dyson

July 17, 02018

Long Now board member Esther Dyson shares her ongoing work to move communities away from short-term thinking and into health. In conversation with previous Interval speaker Kara Platoni, she discusses how short-term desire is addiction, affecting not just individuals but institutions and culture. Dyson’s founded the 10-year Wellville project, now underway in five communities across the US, to tap into people’s natural resilience and build long-term desire: purpose.

Esther Dyson is a Long Now Board member, founder of Wellville, and chairman of EDventure Holdings. She is an active angel investor, best-selling author, board member and advisor concentrating on emerging markets and technologies, new space and health. She sits on the boards of 23andMe and Voxiva (txt4baby), and is an investor in Crohnology, Eligible API, Keas, Omada Health, Sleepio, StartUp Health and Valkee, among others. For 6 months in 02008-02009, Esther lived outside Moscow, Russia, training as a backup cosmonaut.

Kara Platoni is a science reporter who has traveled around the world interviewing scientists and biohackers. But her home is here in the where she is lecturer and assistant dean for students at UC Berkeley's Graduate School of Journalism. She has spoken twice at The Interval: once about her book We Have the Technology and also as part of our Scurvy Salon event.

The Spirit Singularity: Science and the Afterlife at the Turn of the 20th Century

Hannu Rajaniemi

July 10, 02018

Scifi author, scientist, and entrepeneur Hannu Rajaniemi discusses the real life late Victorian attempts to map the afterlife which inspired Summerland, his latest novel.

Rajaniemi introduces us to scientists, inventors, misfits, revolutionaries, plus a tour of obscure ideas and bizarre inventions: spirit-powered sewing machines, aetheric knots, the four-dimensional geometry of Lenin’s tomb... What do these actual Victorian obsessions tell us about today’s fascination with intelligent machines and immortality? He'll sign after the talk, and Borderlands Books will be on hand selling all of his books and he will sign after the talk.

Hannu Rajaniemi was born in Finland, obtained his PhD in string theory at the University of Edinburgh and now works as a co-founder and CTO of HelixNano, a synthetic biology startup based in the Bay Area. He is the author of four novels including The Quantum Thief trilogy and Summerland.

Facts, Feelings and Stories: How to Motivate Action on Climate Change

Shahzeen Attari

June 26, 02018

An environmental researcher examines perceptions of energy use & conservation and asks how we can inspire behavioral change and policy support in individuals and the public at large. With a background in environmental engineering and training in cognitive science, Dr. Attari searches for the narratives that can help us improve our environmental decision-making

Shahzeen Attari works on environmental decision-making at the individual level, looking at biases that shape people’s judgments and decisions about resource use, especially use of energy and water. She is an Associate Professor at the School of Public and Environmental Affairs at Indiana University. She holds a joint PhD in Civil and Environmental Engineering & Engineering and Public Policy from Carnegie Mellon, as well as a BS in Engineering Physics from the University of Illinois. She was a postdoctoral fellow at the Earth Institute and the Center for Research on Environmental Decisions (CRED) at Columbia University. Currently Dr Attari is a 02017-18 Fellow at the Center for Advanced Study in the Behavioral Sciences (CASBS) at Stanford University and a 02018 Andrew Carnegie Fellow.

Words from the Crowd: The Collaboration
That Made The Oxford English Dictionary

Sarah Ogilvie

May 15, 02018

The world's first crowd-sourced project, the first Edition OED took 70 years and the work of hundreds of people to complete. Dr Sarah Ogilvie (Stanford) shares the untold stories of the volunteers who created the Oxford English Dictionary from her new research.

Dr. Ogilvie is a linguist and lexicographer who works at the intersection of technology and the social sciences. She teaches in the linguistics department at Stanford and this year is a Berggruen Fellow at Stanford's Center for Advanced Study in the Behavioral Sciences (CASBS). Ogilvie is also Director of the Stanford Dictionary Lab and Co-Director of Stanford's Digital Humanities Minor. Her books include Words of the World: a Global History of the OED and Keeping Languages Alive. Before Stanford, Ogilvie was an Editor on the OED, taught linguistics at Cambridge University, and worked at Amazon's innovation lab in Silicon Valley.

Science Needs Fiction

Annalee Newitz

May 8, 02018

Science fiction does more than predict future inventions. Stories are a testbed for exploring the unexpected ways people could incorporate technology into their cultures. Science journalist and novelist Annalee Newitz will discuss how scientists, innovators, and the rest of us benefit from the crucible of imaginative fictions.

Annalee is the author of the bestselling novel Autonomous. Her nonfiction book Scatter, Adapt and Remember: How Humans Will Survive a Mass Extinction was a finalist for the LA Times Book Prize in science. She is the founding editor of, and formerly the editor-in-chief of Gizmodo. Currently she is editor-at-large for Ars Technica. Her work has appeared in New York Times, The New Yorker, Atlantic, Wired, Washington Post, Technology Review, 2600, and many other publications. Formerly she was a policy analyst at the Electronic Frontier Foundation and a lecturer in American Studies at UC Berkeley. She received a Knight Science Journalism Fellowship from MIT, and has a Ph.D. in English and American Studies from UC Berkeley.

Modern Surveillance: Why You 
Should Care and What You Can Do

Jennifer Granick

April 17, 02018

The future of privacy begins with the current state of surveillance. The 21st century practices of US intelligence agencies push the technological, legal and political limits of lawful surveillance. Jennifer Granick is a civil liberties and privacy law expert with the American Civil Liberties Union (ACLU) who is the perfect guide to how the system works and the technological and political means we have to defend our privacy.

Jennifer Granick fights for civil liberties in an age of massive surveillance and powerful digital technology. As surveillance and cybersecurity counsel with the ACLU Speech, Privacy and Technology Project, she litigates, speaks, and writes about privacy, security, technology, and constitutional rights. She is the former Executive Director of Stanford Law School’s Center for Internet and Society and also former Civil Liberties Director at the Electronic Frontier Foundation. Her book American Spies: Modern Surveillance, Why You Should Care, and What To Do About It won the 02016 Palmer Civil Liberties Prize for scholarship exploring the tension between civil liberties and national security in contemporary American society. An experienced litigator and criminal defense attorney, she has taught subjects like surveillance law, cybersecurity, and encryption policy at Stanford Law School.

Disinformation Technology: How Online Propaganda Campaigns Are Influencing Us

Renée DiResta

April 10, 02018

Clandestine influence campaigns are rampant on social media. Whether pushing Russian agitprop or lies about vaccines, they can impact policy and make us question what is true. A technologist, Wall Street veteran, and citizen advisor to Congress, DiResta will tell us how bad it is and some things we can do.

Renée DiResta studies narrative manipulation as the Director of Research at New Knowledge. She is a Mozilla Foundation fellow on Media, Misinformation and Trust, and is affiliated with the Berkman-Klein Center at Harvard and the Data Science Institute at Columbia University. Renee is a WIRED Ideas contributor, writing about discourse and the internet. In past lives she has been on the founding team of supply chain logistics startup Haven, a venture capitalist at OATV, and a trader at Jane Street.

Time Poverty Amidst Digital Abundance

Judy Wajcman

March 27, 02018

Technology’s promise is to “save” time. Its track record in real and psychological terms is often the opposite. A sociologist of science and technology, Judy Wajcman continues her examinations of time pressure and acceleration in the digital age. 
Her latest work considers how calendar software interacts
 with the existing anxieties of our digitally driven lives.

Judy Wajcman is the Anthony Giddens Professor of Sociology at the London School of Economics. Professor Wajcman was one of the founding contributors to the field of the social study of Science and Technology, as well as to studies of gender, work and organizations. Her latest books, Pressed for Time and The Sociology of Speed, argue for a sociomaterial approach to the study of time. She is currently a fellow at the Center for Advanced Studies in the Behavioral Sciences (CASBS) at Stanford, co-sponsors of this talk.

Terra Incognita: Exploring the Earth's Most Remote Places

Christopher Michel

March 6, 02018

Christopher Michel has traveled literally to the ends of the Earth. From the North Pole to Antarctica and even 70,000 feet up into near space. He brings back evidence and observations from his travels. “Big Here” is the corollary to the Long Now, from Brian Eno's original essay, and Chris will truly expand our knowledge of this planet with his talk and photos from his journeys.

Christopher Michel is an accomplished photojournalist who has documented extreme locations like the North & South Poles, Mt. Everest, Papua New Guinea, DR Congo and the edge of space (aboard a U-2 Spy Plane). He's also had the opportunity to photograph several global leaders including the 14th Dalai Lama. His photographs have been used by National Geographic, the Smithsonian, the New York Times, the BBC, Outside Magazine, and others and appeared on the covers or front pages of a wide range of publications. He was formerly Photo Editor-at-Large for The Bold Italic and has published a number of fine art books.

Engineering Biology for Social Scales

Megan Palmer

February 6, 02018

Our century’s frontier is biological: how can we best set our course to take life forward? Megan Palmer, a scientist and engineer by training, now focuses on where synthetic biology meets (and will meet) policy. She'll discuss her work
 on standards and practices to assure synthetic biology
 will be safe, responsible and good for the world.

Dr. Megan J. Palmer is a Senior Research Scholar at the Center for International Security and Cooperation (CISAC) at Stanford University. She leads a research and practice program on risk governance in emerging technology development, with a focus on how security is conceived and managed as biotechnology becomes increasing accessible. Her current projects focus on assessing strategies for governing dual use research, analyzing the international diffusion of safety norms and practices, and understanding the security implications of alternative technology design decisions. She also sits on the board of Revive & Restore.

Ethics as Optimization:
ReThinking Technology and the Near Long Term

Venerable Tenzin Priyadarshi

January 30, 02018

New technologies can change the lives of individuals and disrupt businesses and markets. They also may bring up moral questions, both new and everlasting. The Venerable Tenzin Priyadarshi will discuss ethics, governance
 and moral purpose in our time of dawning AI (and into the future).

The Venerable Tenzin Priyadarshi is an innovative thinker, philosopher, educator and a polymath monk. He is Director of the Ethics Initiative at the MIT Media Lab and President & CEO of The Dalai Lama Center for Ethics and Transformative Values at the Massachusetts Institute of Technology, a center dedicated to inquiry, dialogue, and education on the ethical and humane dimensions of life. The Center has six Nobel Peace Laureates as its founding members and its programs are run around the world. He is also the Founding Director and President of the Prajnopaya Institute and Foundation, a worldwide humanitarian organization which provides care for all regardless of ethnicity, religion or gender, by developing innovative health, education and social welfare programs.

Venerable Tenzin's unusual background encompasses entering a Buddhist monastery at the age of ten and receiving graduate education at Harvard University with degrees ranging from Philosophy to Physics to International Relations. He is a Tribeca Disruptive Fellow and a Fellow at the Center for Advanced Study in Behavioral Sciences at Stanford University.

Another Pale Blue Dot: 
Inside SETI Institute’s Search for Exoplanets

Franck Marchis

January 16, 02018

New science and tech are vastly accelerating
 the search for exoplanets: an effort that’s only decades old. How long until we find Earth 2.0? SETI Institute’s Senior Planetary Astronomer will update us 
on the latest work to find planets like Earth.

Dr. Franck Marchis has been a Principal Investigator at the Carl Sagan Center of the SETI Institute since July 2007. Over the past 15 years, he has studied our solar system using mainly ground-based telescopes equipped with adaptive optics (AO). He made the first ground-based observations of the volcanoes on the jovian moon Io. His recent work includes the Gemini Planet Imager, an extreme AO system for the Gemini South telescope which will image and record spectra of exoplanets orbiting nearby stars. He holds a PhD from Toulouse III university in his native France.

What’s The Future? It’s Up to Us.

Tim O'Reilly

January 9, 02018

Based on four decades in technology and media, constantly in the eye of innovation, O’Reilly is starting vital conversations about our future. Be ready for keen details on how we got here, a frank assessment of emerging challenges, and a bold call to action for the sake of the generations on the horizon.

Tim O’Reilly is founder and CEO of O’Reilly Media, Inc. If you’ve heard the term “open source software” or “web 2.0” or “the Maker movement” or “government as a platform” or “the WTF economy,” he’s had a hand in framing each of those big ideas. With these and many other efforts over the years, Tim has helped the tech industry better understand itself and its influence beyond innovation for innovation's sake. His leadership and insight continue to be invaluable as he now highlights the responsibility that goes along with that influence. He spoke in Long Now's Seminars About Long-term Thinking series in 02012.

Can Democracy Survive the Internet?

Nathaniel Persily

November 28, 02017

The Internet was once seen as a democratizing force, but today social media platforms have become exploitable intermediaries of political discourse. How should governments, institutions and tech companies respond? In the wake of an Internet-mediated and norm-breaking 
election, we've asked one of the United States' premier election law experts to speak for us about what comes next.

Author and Stanford Law professor Nathaniel Persily focuses on the law of democracy, addressing issues such as voting rights, political parties, campaign finance and redistricting. A sought-after nonpartisan voice in voting rights, he has served as a court-appointed expert to draw legislative districting plans for Georgia, Maryland and New York and as special master for the redistricting of Connecticut’s congressional districts. His other principal area of scholarly interest concerns American public opinion toward various constitutional controversies.

Persily designed the Constitutional Attitudes Survey, a national public opinion poll executed in both 02009 and 02010. The survey includes an array of questions concerning attitudes toward the Supreme Court, constitutional interpretation and specific constitutional controversies. He also served on the Presidential Commission on Election Administration, a bipartisan commission created by President Obama to deal with the long lines at the polling place and other administrative problems witnessed in the 02012 election.

An Additive Electronics Revolution

Janos Veres

November 14, 02017

An R&D update from PARC, the legendary research lab. Janos Veres who heads up PARC’s Novel and Printed Electronics team discusses the materials, processes, and vision that enable the printable electronics of our near future. Joined in conversation with PARC designer, and previous Interval speaker, Mike Kuniavsky.

Janos Veres leads PARC's Novel and Printed Electronics Program, exploring the Future of Electronics. His primary interest is in radically new manufacturing concepts: merging micro and macro to create electronics in new form factors, thus “freeing electronics from the box.” This includes large area, flexible, conformal image sensors and detector arrays for medical imaging or security applications; flexible, hybrid electronics using printing as a manufacturing technique for customized Internet of Things (IoT) devices; smart inks taking 2D and 3D printing beyond shapes and colors, adding electronics functionalities to automotive or wearable devices; and electronics that can configure themselves from microchip inks, dynamically change shape, or disintegrate on command.

After On: Emergent Fiction from the Technology of our Moment

Rob Reid

October 24, 02017

A veteran entrepreneur turns a satirical eye on Silicon Valley in his new science fiction novel. Rob Reid’s latest book "After On" was written in part at The Interval and actually features our establishment in the story. Set in present day San Francisco, the story includes an app gone wild, super AI risk, the promise & peril of synthetic biology, and lone wolf terrorism. But it’s only scifi, right?

Rob Reid founded the company which built the Rhapsody music service. This is his second novel; Year Zero in 02012. Rob recently launched an "After On" podcast where he discusses at the science, tech, and social issues that feature in the novel with experts in related fields.

Journalism in an Age of Misinformation and Centralization

Dan Gillmor

October 17, 02017

As lying dominates politics and highly centralized entities increasingly control our media: is there any hope for honest news? These dual trends are a direct threat to our core liberties, including freedom of speech and assembly. Dan Gillmor will discuss where journalism goes from here and what, as media consumer-practitioners, we all can do.

Gillmor is a veteran journalist, formerly of the San Jose Mercury News. He has been champion of media literacy and citizen journalism for many years working with The Knight Foundation, the Berkman Center for Internet & Society at Harvard University's Law School, and currently Arizona State University's Walter Cronkite School of Journalism.

The Secret Life of Lightning: The Science of Giant Tesla Coils

Greg Leyh

September 26, 02017

Nikola Tesla’s wireless electrical system is more than a high voltage spectacle. Experiments with Tesla coils could help explain important questions about how lightning works. Bay Area citizen scientist Greg Leyh has built the largest
 Tesla coils in the world in his quest to better understand the physics of lightning.

Leyh's current project is completing a 40-foot tall coil which has been in the works for 5 years; and that's a step toward eventually building a pair of coils at 3 times that height. Invented by Nikola Tesla in the 01890’s, the Tesla coil produces high-voltage, low-current, high frequency alternating-current electricity with vivid electrical streamers that extend from the top of the coil.

The Organized Pursuit of Knowledge

Margaret Levi

September 19, 02017

The human quest to understand our world continues. The Director of Stanford’s Center for Advanced Studies in the Behavioral Sciences (CASBS) discusses how academics and researchers have organized the study of human action, society, and institutions over time, how they share their findings, and what transformations we need for the future.

Margaret Levi is Professor of Political Science at Stanford University and the Sara Miller McCune Director of CASBS. She is Jere L. Bacharach Professor Emerita of International Studies in the Department of Political Science at the University of Washington. She became a fellow of the American Academy of Arts and Sciences in 2001, a John Simon Guggenheim Fellow in 2002, and a member of the National Academy of Sciences in 2015.

Art Thinking + Technology: A Personal Journey of Expanding Space and Time

Scott Kildall

August 15, 02017

What place is there for art in the 21st century world of technology, business, and science? Everywhere. Award-winning cross-disciplinary artist and current SETI artist-in-residence Scott Kildall discusses collaborating with scientists, technologists, and others. He'll share his work and explain the vital role for Art Thinking as a tool that offers perspective
 in a dynamic, fast-moving world.

Scott Kildall is a cross-disciplinary artist whose work includes writing algorithms that transform datasets into 3D sculptures and installations. His art often invites public participation through direct interaction. He has been an artist in residence with the SETI Institute and Autodesk; and his work has been exhibited internationally at venues including the New York Hall of Science, Transmediale, the Venice Biennale and the San Jose Museum of Art. Besides many other fellowships, residencies, and honors.

The Five Ages of Burning Man

Michael Mikel

July 11, 02017

Burning Man co-founder Michael Mikel (aka Danger Ranger), who serves as Director of Advanced Social Systems for the Burning Man Project will discuss the thirty-year history of the event. Outlining the five eras of Burning Man, he will 
explain how over time the event and organization
 have evolved and been molded by external and internal forces.

The Geological Reveal: How the Rock Record Shows Our Relationship to the Natural World

Miles Traer

June 27, 02017

Before us, after us, and without our realizing it: geology, ecology, and biology uniquely record human activity. Geoscientist Miles Traer, co-host of the podcast Generation Anthropocene uncovers the many “natures" of the
 San Francisco Bay Area that exist beneath our feet.

The Rise and Fall of D.O.D.O.

Neal Stephenson

Nicole Galland

June 14, 02017

In a special daytime event co-authors Neal Stephenson (Anathem, Seveneves) and
 Nicole Galland (The Fool's Tale) discuss their novel The Rise and Fall of D.O.D.O. with Long Now’s Alexander Rose on the day after it was released. It's a book that features ancient texts,
 19th century technology, time travel, 
a language expert protagonist, and magic. Perfect for a Long Now talk.

Neal Stephenson is the bestselling author of more than a dozen novels including Snow Crash, Anathem, Seveneves, and The Baroque Cycle. He spoke in Long Now's SALT series in 02008 and at The Interval at Long Now in 02015 (on the release of Seveneves). He lives in Seattle, WA.

Nicole Galland has written six previous novels, most recently Stepdog; others include The Fool's Tale; I, Iago; and Godiva. She previously collaborated with Neal Stephenson on The Mongoliad Cycle. Galland spent time in the Bay Area studying at UC Berkeley and as dramaturg for Berkeley Repertory Theatre. She lives in Martha’s Vineyard, MA.

How We Became “Unprepared”:
Imagining Catastrophe from the Cold War to Bird Flu

Andrew Lakoff

May 30, 02017

What tools & concepts do climate, health and security authorities rely on to evaluate potential crises? An anthropologist of science & medicine asks how preparedness became the norm for experts charged with managing uncertain futures. Lakoff's book Unprepared: Global Health in a Time of Emergency.

This event is co-presented by the Center for Advanced Study in the Behavioral Sciences (CASBS) where Andrew Lakoff is currently a fellow.

The History & Science of a Persistent Malady

Scurvy Salon

May 16, 02017

A special night of short talks about the long history and scientific background behind a most persistent malady. And the drinks that can help keep it at bay. Featuring returning Interval speakers
 James Holland Jones (Stanford), James Nestor (Deep), Kara Platoni (We Have the Technology), The Interval’s Beverage Director: Jennifer Colliau, and more.

Adapting to Sea Level Rise: The Science of New York 2140

Kim Stanley Robinson

May 9, 02017

Legendary science ficiton author Kim Stanley Robinson returns to The Interval to discuss his just released novel New York 2140. Robinson will discuss how starting from the most up to date climate science available to him, he derived a portrait of New York City as "super-Venice" and the resilient civilization that inhabits it in his novel. In 02016 Robinson spoke at The Interval about the economic ideas that inform New York 2140. He will be joined by futurist Peter Schwartz in conversation after his talk.

Why Freedom of Speech Is More Than Speech:
Expressions in Media and Code

Jennifer Petersen

April 18, 02017

By law “speech” once meant “words,” literally. The interactions of culture, technology and the law have over time broadened that definition and expanded protections to cover images and gestures. Dr. Jennifer Petersen of UVA and CASBS review that progression and looks toward the future of whether code will be considered as speech.

What Curiosity Can Mean for the Future

Adam Steltzner

April 4, 02017

A 25-year veteran of the Jet Propulsion Lab tells how on Earth he became an engineer and what it took to nail the landing on a planet 140 million miles away.

"Curiosity" is the name of NASA's Mars rover that Adam Steltzner and his team safely delivered to the planet's surface four years ago. Adam's own curiosity is what led him from a late start to become a celebrated engineer at the Jet Propulsion Laboratory. He'll talk about why he believes that in the long view, curiosity is the essential quality for civilization to continue to realize its potential.

Adam Steltzner previously spoke in Long Now's Seminars About Long-term Thinking series in 02013; we are thrilled to have him back to speak at The Interval. He'll discuss his own curious journey and the creative, collaborative teamwork that characterizes his work at the Lab followed by Q&A with Long Now's Stewart Brand.

Citizen Science: How It Works, Why It's Important,
and Where It Might Take Us

David Lang

March 21, 02017

As co-founder of the underwater robot maker OpenROV, David Lang can report from the front lines of the growing citizen science movement. His products enable a community of citizen ocean explorers, just as many other amateur enthusiasts around the globe use unprecedentedly powerful, cheap technologies (and the scientific method) to explore the natural world

David gives a hands-on tour of his company’s soon to be released model Trident which was funded via Kickstarter. Long Now’s Stewart Brand hosts and leads Q&A with David after his talk.

Climate Change and the Future of Cities

Eric Klinenberg

March 7, 02017

What qualities help assure that
 a community can survive the threat of disaster? The population density of cities leads to inherent vulnerabilities to mass climate disasters: such as single point of failure transit systems and utilities built prior to today's environmental realities. At the same time the resources of cities offer tremendous potential for preparation and innovation.

As a sociologist, Klinenberg brings insights on how neighborhood dynamics (what he calls "social infrastructure") can help individuals & communities prepare for extreme weather including flooding and heat waves. He discusses how cities can be wiser and think more long-term by planning traditional infrastructure projects which also enable such social infrastructure in their design.

The Psychology of Surveillance:
How Being Watched Changes Our Behavior

Tara Behrend

February 28, 02017

Organizational psychologist Tara Behrend focuses on the implications of a digitally connected world of work. As pervasive data collection becomes increasingly common in modern work and educational settings, she examines what it means for individual freedom and self-determination.

Pervasive data collection is a feature of most modern work and education settings. Dr. Tara Behrend, Director of the Workplaces and Virtual Environments lab at George Washington University, studies the psychology of information privacy. In her talk she will discuss the long history of surveillance and the consequences of these practices for individual freedom and self-determination today.

Sometimes Brilliant
in Conversation with Stewart Brand

Larry Brilliant

February 21, 02017

From 01960s political protests to successfully eradicating smallpox, Brilliant recalls his long, strange trips around a changing world. His personal stories include icons of the last century from Steve Jobs to MLK to the Grateful Dead. Recollections of a visionary physician, technologist, and seeker, in conversation with Long Now's Stewart Brand with whom Dr. Brilliant founded The Well online community in 01985.

Breaking the Close: Burglary and the Limits of Architecture

Geoff Manaugh

February 14, 02017

Burglary reveals unexpected ways of moving through—and misusing—the built environment. In his talk Manaugh (author of the BLDGBLOG blog since 02004) discusses how, for burglars, architecture itself is a tactical tool. Seen through the lens of breaking and entering, walls become doors, sewers merely underground streets.

At the core of A Burglar’s Guide to the City is an unexpected and thrilling insight: how any building transforms when seen through the eyes of someone hoping to break into it.

Encompassing nearly 2,000 years of heists and break-ins, the book draws on the expertise of reformed bank robbers, FBI Special Agents, private security consultants, the L.A.P.D. Air Support Division, and architects past and present.

Rationality Redeemed: An Evolutionary Perspective On Behavioral Economics

James Holland Jones

January 17, 02017

Rationality, a cornerstone of modern economic theory, is increasingly called into question by new behavioral research

. By looking at subsistence societies, this biological anthropologist reaffirms that humans can act in their own self-interest. Bringing an evolutionary perspective to formal decision theory, Dr. Jones will explain what we can learn from the most rational people in the world.

The Interval welcomes award-winning journalist Mary Kay Magistad (formerly of PRI's The World and NPR, now host of the Whose Century Is It? podcast) as guest moderator. This event was co-presented by the Center for Advanced Study in the Behavioral Sciences (CASBS), where Jones was a 02015-16 fellow.

Technology & Counterculture from World War II to Today

Fred Turner

November 15, 02016

Stanford historian Fred Turner discussed how concerns about mass media in the 01940s set the stage for not only the psychedelic 01960s, but also today's social media. This presentation connects the subjects of Turner's two most recent books: From Counterculture to Cyberculture and The Democratic Surround. Fred Turner is a two-time fellow of the Center for Advanced Study in the Behavioral Sciences (CASBS) who are co-presenting this talk.

The Next Flight of the Passenger Pigeon: Engineering Nature's Engineers

Ben Novak

September 27, 02016

A now extinct bird that once flocked in the billions, a casualty of industrialization, can be revived. Ben Novak, lead scientist of Revive & Restore's Passenger Pigeon Comeback discussed his work to return a species to the skies, sharing the latest developments and a broad overview of the process of genetic rescue and de-extinction.

Technology at the Limits of Comprehension

Samuel Arbesman

August 23, 02016

The technological advances that make life easier also 
result in systems that are beyond our understanding. In his new book Overcomplicated Arbesman, a complexity 
scientist, discusses how we can live and thrive with 
advanced technologies that defy human comprehension.

Ideology in our Genes: The Biological Basis for Political Traits

Rose McDermott

July 19, 02016

Recent research shows that genetics as well as environment contribute to our political opinions. Social and political psychologist Rose McDermott of Brown Univiersity, a Stanford CASBS fellow, explains the biological foundations of ideology, how conservative and liberals react to each other's scent, and much more. From July 02016.

A Case for Hope in the Anthropocene

Andrew Chignell

June 28, 02016

A philosopher considers the history of hope and its future in the epoch ahead.
 A tour through the theoretical, empirical, and practical dimensions of hope and how it differs from optimism followed by a conversation with Long Now co-founder Stewart Brand on hope and optimism as tools in the now and the long now.

The Inevitable

Kevin Kelly

June 7, 02016

Much of what will happen in the next 30 years is inevitable, driven by trends that are now in motion. Long Now’s Kevin Kelly shaes his thoughts on upcoming changes from virtual reality the on-demand economy and how they represent long-term, accelerating forces in this unique event in discussion with The Interval audience.

The Pragmatic Imagination

John Seely Brown

Ann Pendleton-Jullian

May 31, 02016

The world we live in is unprecedented: broadly connected, rapidly changing and radically contingent. The ways humans process the known and the novel have also evolved. Our speakers share their research on the emergent spectrum of the Pragmatic Imagination.

Our Future in Algorithm Farming

Mike Kuniavsky

May 17, 02016

Automated systems increasingly try to predict our behavior and needs; what do we do until they get good at it? The first talk in a new series from the team at PARC, 
the venerable research lab, UX designer and author Mike Kuniavsky takes a clear-eyed look at the benefits and risks of a future interwoven with algorithms. From May 02016.

How Climate Will Evolve Government and Society

Kim Stanley Robinson

May 10, 02016

Humanity’s adaptation to climate change will require novel, global cooperation and societal evolution. The award-winning science fiction author of 2312, the Mars Trilogy, and Aurora shares his vision for how the world must change in advance of his 02017 novel New York 2140. Hosted by Stewart Brand. From May 02016.

Creativity, Trust and the Paradox of Spontaneity

Edward Slingerland

April 26, 02016

With the paradox of wu-wei, Chinese thinkers anticipated aspects of modern neuroscience more than two millennia ago. Chinese language and religion scholar Edward Slingerland (author of Trying Not To Try) looks at wu-wei’s contemporary relevance to creativity, trust, virtue, and the future of human cooperation.

Into the Anthroposcenic

William Fox

April 5, 02016

How will artists and architects shape the most important debate of the early 21st century? In an epoch defined by human activities, the question is not whether to geo-engineer the planet, but how to bring intentionality and consideration to that global project.

How Digital Memory Is Shaping Our Future

Abby Smith Rumsey

March 29, 02016

Memory is not about the past, it is about the future. Historian and media expert Abby Smith Rumsey explores how digital memory, which cannot be preserved, will shape the future of knowledge and affect our survival. From March 02016.

Abby Smith Rumsey is a historian who writes about how ideas and information technologies shape perceptions of history, of time, and of personal and cultural identity. She served as director of the Scholarly Communication Institute at the University of Virginia, and worked for more than a decade at the Library of Congress. Her book When We Are No More, How Digital Memory Is Shaping Our Future (02016) looks at how human memory from pre-history to the present has shed light on the grand challenge facing our world--the abundance of information and scarcity of human attention.

Painting the Endangered World

Isabella Kirkland

March 22, 02016

Isabella Kirkland's paintings are built for longevity with the hope that the images survive long after the biota are gone, to stand as mute record to their passage. Mixing old techniques, scientific acumen, and keen observation, her paintings act as snapshots of modern attitudes towards other forms of life. Unusually, Kirkland's work has exhibited about equally between art and natural history contexts. She has collaborated with Long Now’s Revive and Restore project to paint flora and fauna that are gone, going or coming back. For this special event at The Interval Kirkland discusses her artistic path over decades including the Manhattan art scene of the 01980s as well as her most recent work "Nudibranchia" which includes over 200 varieties of colorful sea slugs.

Transforming Perception, One Sense at a Time

Kara Platoni

March 1, 02016

Kara Platoni went around the world to document the ways we humans are trying to expand our experience of the world beyond our basic senses. She found scientists, doctors, inventors, and cooks who are actively exploring the frontiers of perception. She gave us a taste of the science and shared amazing stories of biohackers, foodies, virtual reality researchers, and other sensory pioneers.

Kara Platoni is a science reporter who works the Nancy Drew beat, going anywhere there is a possibility of a weird adventure involving pirates, old clocks or (ideally) ghosts. For her book, We Have the Technology, she sofa-surfed through four countries and eight US states, visiting any lab, military base or biohacker basement that would let her get in on an experiment on the cutting edge of sensory science. She teaches narrative writing and is an assistant dean at UC Berkeley's Graduate School of Journalism.

Thinking Long-term About the Evolving Global Challenge

The Refugee Reality

February 23, 02016

Millions are migrating under duress. Refugee camps the size of cities have persisted for decades. Real dangers and sensationalized fear drive short term news cycles. In a special panel discussion hosted by Long Now academics and on the ground non-profits discuss global migration, the refugee reality, and ideas for the future. From February 02016.

Heroic Antarctic: Rare Whisky, Silent Film,Explorers Tales and Penguin Sex

Odd Salon: Antarctica

February 16, 02016


A special event in collaboration with Odd Salon, curious historians of San Francisco, which focused on Earth's southernmost continent and the adventurous spirit of Sir Ernest Henry Shackleton and others in the Heroic Age of Antarctic Exploration at the turn of the 20th century. The night included several short talks, a showing of the film South (01919), and a tour through the natural history of the bottom of the world.

Redefining Growth

John Thackara

February 2, 02016

John Thackara shares findings from his lifelong search for real-world alternatives that work: from earth repair to social farming.

The New Deal You Don't Know

Louis Hyman

January 26, 02016

Historian of capitalism and author of “Borrow: The American Way of Debt” discussed deep economic history and a forgotten chapter of the New Deal era:
 how capitalism itself stalled in the Great Depression; and what government, allied with entrepreneurs, did to jump-start capitalism. The question is: could it happen again today? From January 02016.

The Long News

Kirk Citron

January 19, 02016

The daily news tells us what happened yesterday. It rarely tells us what’s happening tomorrow. Kirk Citron curates the Long News: looking for longer-term trends that will matter for decades, centuries, even millennia.

From Deep Space into the Deep Sahara

Stefan Kröpelin

December 14, 02015

The world traveling geologist and climate researcher shared stories, science and breath-taking images from his recent trips to the Central African nation of Chad and some of Earth’s most spectacular and least known desert sites.

The Future of the Human Brain

David Eagleman

November 18, 02015

What do the next thousand years have in store for us? 
If we can understand the secrets behind our achievements, perhaps we can direct the brain’s strengths in purposeful ways and open a new chapter in the human story.

In the Footsteps of the Ancestors

Howard Morphy

Frances Morphy

November 3, 02015

Anthropologists Howard and Frances Morphy have studied and worked with indigenous peoples for forty years. They discussed the perspective of Australia’s Yolngu people on time, the environment, maps, and more.

The Red Planet for Real

Andy Weir

October 27, 02015

Before Andy Weir's self-published novel The Martian became a New York Times bestseller and a blockbuster film, it began as a series of blog posts. Those posts, and the online conversation they sparked, reflect Andy's lifelong love of space and his detailed research into how humans could survive a journey to the fourth planet in our Solar System. In October of 02015, in his talk at The Interval, Andy skipped the fiction and discussed the details of how a real world mission to colonize Mars would work. Hosted by Long Now's Peter Schwartz.

The Cocktail Crystal Ball

Paul Clarke

October 20, 02015

The Executive Editor of Imbibe magazine and author of The Cocktail Chronicles looks back 150 years and then forward to ask:
 What Will They Drink in 02115?

The Quest for Common Ground Between Humans and Robots

John Markoff

September 29, 02015

In recent years 
the automation debate has returned. Author and veteran tech journalist John Markoff discusses the potential and peril in designing robots for human use.

The Library That Lasts

Hugh Howey

July 28, 02015

The written word has transformed humanity. Ideas now outlast their creators. Knowledge builds on knowledge across generations. The author of Wool and The Bern Saga asks: “How will texts survive deep time? What does the library of tomorrow look like?”

The Changing Reading Brain in a Digital Culture

Maryanne Wolf

July 14, 02015

Dr. Maryanne Wolf shares her research on the reading brain: its protean capacities; its surprising differences (e.g., in dyslexia); and its changes for good and ill in a digital culture.

Conceptualizing the Risk and Uncertainty of Climate Change

Valentina Bosetti

June 23, 02015

An economist focused on green tech innovation who was a lead author on the latest IPCC Assessment Report, Dr. Bosetti will discuss how we conceptualize the risk and uncertainty of climate change.

Bay Area Telecommunications Infrastructure History

Rick Prelinger

June 16, 02015

Rick Prelinger uncovers the diverse histories of
Bay Area telecommunications infrastructure: telephone, radio, television, data, image and sound. A tour of technologies, dead and flourishing, that overlay, underlay and penetrate us all.

21st Century Iron Age

James Austin

June 2, 02015

A working and teaching blacksmith for over thirty years, James Austin specializes in making Viking age axes using traditional methods.

Seveneves at The Interval

Neal Stephenson

May 21, 02015

A special daytime talk by celebrated speculative fiction author
 Neal Stephenson on the occasion of his just released novel "SEVENEVES". After a reading, Long Now co-founder Stewart Brand joins Neal to discuss the research and writing of the new book, plus a little bit about what is coming next. From May 02015.

Coding Ourselves/Coding Others

D. Fox Harrell

May 5, 02015

D. Fox Harrell’s Imagination, Computation, and Expression Lab at MIT develops computing systems for creative expression, cultural analysis, and social empowerment.

Modern Brain Parasites as Clues to Ancient Illness

Patrick House

April 21, 02015

A Stanford neuroscientist and geneticist explains how Toxoplasmosis and its animal carriers connect us with ancient Egypt and new 
insights about schizophrenia.

Envisioning Deep Time

Jonathon Keats

April 7, 02015

A conceptual artist and experimental philosopher, Jonathon Keats' work has included personalizing the metric system, copyrighting his own mind, applying general relativity to time management, and attempting to genetically engineer God. Recently he opened the shutter on his first millennium-long photograph. Co-sponsored by The ZERO1 Art & Technology Network. From April 02015.

The Knowledge, Rebuilding Our World from Scratch

Lewis Dartnell

March 24, 02015

Lewis Dartnell, a research fellow for the UK Space Agency, talks about his new book: a must-have resource kit for the day after the apocalypse.

Hell and Good Company, the Spanish Civil War

Richard Rhodes

March 10, 02015

The versatile author and historian Richard Rhodes (a Pulitzer-prize winner for his book "The Making of the Atomic Bomb") leads us through innovations both medical and military from the Spanish Civil War, the subject of his new book "Hell and Good Company".

The Web In An Eye Blink

Jason Scott

February 24, 02015

A filmmaker, historian, and self-proclaimed rogue archivist, Jason Scott discusses his personal history of preserving the digital commons which began with rescuing his favorite BBS-era "text files" and continued with saving gigabytes of the first user-created homepages (i.e. which were about to be trashed by their corporate owner. Today his mission, in his role at the Internet Archive, is to save all the computer games and make them playable again inside modern web browsers. And that's where things get really weird. From February 02015.

Talking with Robots about Architecture

Jeffrey McGrew

February 10, 02015

The co-founder of Because We Can, the architecture/design firm that designed The Interval at Long Now, discusses the future of building: automation, communication, and whether "robots" will change everything. An informed and realistic overview of how architects and builders use automation today and how they may use it tomorrow. From February 02015.

Pace Layers Thinking

Stewart Brand

Paul Saffo

January 27, 02015

Stewart Brand and Paul Saffo will discuss the Pace Layers framework for how a healthy society functions, which Stewart introduced in his book The Clock of Long Now (01999). More than fifteen years after its debut, this concept continues to be influential and inspiring. From January 02015.

The Pace Layers idea is illustrated by a simple diagram showing six layers which function simultaneously at different speeds within society. They range from Nature (the slowest) to Fashion (the fastest, shown at the top). As the layers progress, Stewart proposed, their differing speeds help make a society more adaptable. Cultures can be robust and healthy precisely because these layers come into conflict. Each level should be allowed to operate at its own pace, safely sustained by the slower levels below and kept invigorated by livelier levels above.

Though originally conceived as a tool for thinking about society, Pace Layers has had broad influence as experts in other disciplines have applied its framework to their areas including consulting and systems thinking. Jeff Veen of True Ventures (formerly Adobe, Adaptive Path, and Wired) recently said that Pace Layers provides a vocabulary to think about the stacked layers of contemporary design. Phil Libin, CEO of Evernote, has called the Pace Layers chapter in The Clock of the Long Now “the most profound thing I've ever read.”

Today in a networked world where everything seems to be about speed, awareness of the slower layers and perspective on how all layers interact can give insight into what the future may hold.

Artists with Lasers. Art, Tech, & Craft in the 21st Century

Mathieu Victor

January 20, 02015

Former Jeff Koons studio artist Mathieu Victor discussed the history of technology used in art and how today's tech enables the 21st century’s most ambitious work.

The Great Basin in the Anthropocene

Scotty Strachan

January 6, 02015

University of Nevada-Reno geologist talks about Bristlecone pines, long-term science, and Long Now’s Nevada mountain. With an introduction by Long Now Executive Director Alexander Rose.

A Cool Tools Book Event

Kevin Kelly

November 25, 02014

Founding Wired editor and Long Now board member Kevin Kelly discusses "Cool Tools" his Catalog of Possibilities which contains carries on the spirit of The Whole Earth Catalog includeing more than 1000 useful “tools” of all sort.

Philip K. Dick's Philosophical Machines

Erik Davis

November 18, 02014

Author Erik Davis is best known for his book Techgnosis: Myth, Magic, and Mysticism in the Age of Information. But he has been writing about Philip K. Dick for decades, and was a co-editor of The Exegesis of Philip K. Dick, a surreal and daunting task in tis own right. Davis took time out from his dissertation on the "High Weirdness" figures of the early 01970s (which includes PKD) to give us a guided tour of the strangely inspired technologies that were born in Dick's fiction. And what's weirdest is how much they resonate with the tech we use today.

Philip K. Dick is widely acknowledged as one of the most important and prophetic science fiction writers of the twentieth century. His career and work is also deeply connected to the San Francisco Bay Area; he produced such landmark works of science fiction The Man In The High Castle, Time Out Of Joint, and Ubik while living in the area.

Renegade Technology in the Bay Area

Karen Marcelo

November 4, 02014

Dorkbot organizer and Survival Research Labs participant Karen Marcelo discusss the history of renegade tech in the San Francisco Bay Area.

Designing for Longevity -- The 10,000 Year Clock Project

Alexander Rose

October 28, 02014

Long Now’s Executive Director gives a tour of projects throughout history and around the globe that are designed to last for a millennia or more, including our Clock of the Long Now which he has worked on for two decades.

Humanity and the Deep Ocean

James Nestor

October 7, 02014

James Nestor takes us into the ocean's depths with freedivers who go death-defyingly hundreds of feet below the surface without scuba gear. In researching it Nestor found there's much more to freediving than a thrillseeker's pastime. He details compelling insights about not only the ocean and its creatures, but about our own human senses and biology whic await us in the Deep. From October 02014.

The Future of Human Spaceflight

Ariel Waldman

September 30, 02014

Founder of and Science Hack Day, Ariel Waldman looks to our future in the stars.

The Future Declassified

Mathew Burrows

September 23, 02014

Former intelligence analyst and strategic forecaster for the US Government, Mathew Burrows shares his thoughts on our global future.

The Future of the Internet

Peter Schwartz

August 18, 02014

Futurist and Long Now board member Peter Schwartz shared his expertise and explain some of the tools of the futurist’s trade. First he discussed how futurist thinks about a subject, in this case the Future of the Internet. Then everyone attending broke out into small group discussions about that topic, applying scenario planning techniques to propose ways the Internet may change over years and decades to come. Finally the groups presented their work to Peter and the reassembled audience, and we wrote up the results on The Interval's chalkboard.

Go Animals

Jon Mooallem

Laurel Braitman

August 12, 02014

Jon Mooallem and Laurel Braitman have each written smart, well-researched books about animals full of unforgettable stories and insights about human beings.

On the Future of Language

Laura Welcher

Mandana Seyfeddinipur

David Evan Harris

July 8, 02014

Linguistic diversity is linked with biodiversity. Languages are going extinct like never before. Learn about the Big Here of our endangered language world.

Science Fiction to Science Fabrication

Dan Novy

July 1, 02014

Maker, Burner, MIT Media Labber shows how our imagination has exceeded proceeded and how his students have mined science fiction history to inspire new ideas.

Long-term Sustainable Privacy Models

Violet Blue

June 17, 02014

Violet Blue is an investigative reporter on hacking and cybercrime, and the author of The Smart Girl's Guide to Privacy. She looks at the state of commercial and criminal assaults on privacy, what you can do about it, and thinks about what kind of "ideal" of privacy we might someday hope to create.

Proof: The Science of Booze

Adam Rogers

May 27, 02014

Wired Magazine editor and author of "Proof: The Science of Booze", Adam Rogers leads us on a tour of the 10,000 year story of alcohol. With deep historical research, expert testimony, and solid science he discusses the accidental discovery of fermentation, an alternative American whiskey history, and his own role in the pre-history of Long Now's Interval bar. This talk was the first ever in The Interval's salon talk series; it took place in May of 02014, 2 weeks before The Interval officially opened. From May 02014.

Want to get early notice of The Interval events?

Become A Member or Interval Donor Today

Tickets usually go on sale 2 tweeks prior to the event. Our talks tend to sell out quickly due to our limited capacity. Long Now members can purchase tickets before the general public. Memberships start at just $8/month.