The WORST episodes of TED Talks
Every episode of TED Talks ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of TED Talks!
TED is a nonprofit devoted to Ideas Worth Spreading. It started out (in 1984) as a conference bringing together people from three worlds: Technology, Entertainment, Design. TEDTalks began as a simple attempt to share what happens at TED with the world. Under the moniker "ideas worth spreading," talks were released online. They rapidly attracted a global audience in the millions. Indeed, the reaction was so enthusiastic that the entire TED website has been reengineered around TEDTalks, with the goal of giving everyone on-demand access to the world's most inspiring voices. [TED-Ed and TEDx are separate TVDB series and should NOT be listed here. Episode ordering and dates are sourced from YouTube.]

#1 - Dan Knights: How we study the microbes living in your gut
Season 2018 - Episode 209 - Aired 7/10/2018
There are about a hundred trillion microbes living inside your gut — protecting you from infection, aiding digestion and regulating your immune system. As our bodies have adapted to life in modern society, we've started to lose some of our normal microbes; at the same time, diseases linked to a loss of diversity in microbiome are skyrocketing in developed nations. Computational microbiologist Dan Knights shares some intriguing discoveries about the differences in the microbiomes of people in developing countries compared to the US, and how they might affect our health. Learn more about the world of microbes living inside you — and the work being done to create tools to restore and replenish them.

#2 - Paul Rucker: The symbols of systemic racism -- and how to take away their power
Season 2018 - Episode 195 - Aired 6/26/2018
Multidisciplinary artist and TED Fellow Paul Rucker is unstitching the legacy of systemic racism in the United States. A collector of artifacts connected to the history of slavery — from branding irons and shackles to postcards depicting lynchings — Rucker couldn't find an undamaged Ku Klux Klan robe for his collection, so he began making his own. The result: striking garments in non-traditional fabrics like kente cloth, camouflage and silk that confront the normalization of systemic racism in the US. "If we as a people collectively look at these objects and realize that they are part of our history, we can find a way to where they have no more power over us," Rucker says. (This talk contains graphic images.)

#3 - Ian Firth: Bridges should be beautiful
Season 2018 - Episode 196 - Aired 6/27/2018
Bridges need to be functional, safe and durable, but they should also be elegant and beautiful, says structural engineer Ian Firth. In this mesmerizing tour of bridges old and new, Firth explores the potential for innovation and variety in this essential structure — and how spectacular ones reveal our connectivity, unleash our creativity and hint at our identity.

#4 - Karen J. Meech: The story of 'Oumuamua, the first visitor from another star system
Season 2018 - Episode 197 - Aired 6/27/2018
In October 2017, astrobiologist Karen J. Meech got the call every astronomer waits for: NASA had spotted the very first visitor from another star system. The interstellar comet — a half-mile-long object eventually named `Oumuamua, from the Hawaiian for "scout" or "messenger" — raised intriguing questions: Was it a chunk of rocky debris from a new star system, shredded material from a supernova explosion, evidence of alien technology or something else altogether? In this riveting talk, Meech tells the story of how her team raced against the clock to find answers about this unexpected gift from afar.

#5 - Travis Rieder: The agony of opioid withdrawal -- and what doctors should tell patients about it
Season 2018 - Episode 198 - Aired 6/28/2018
The United States accounts for five percent of the world's population but consumes almost 70 percent of the total global opioid supply, creating an epidemic that has resulted in tens of thousands of deaths each year. How did we get here, and what can we do about it? In this personal talk, Travis Rieder recounts the painful, often-hidden struggle of opioid withdrawal and reveals how doctors who are quick to prescribe (and overprescribe) opioids aren't equipped with the tools to eventually get people off the meds.

#6 - Lindsay Malloy: Why teens confess to crimes they didn't commit
Season 2018 - Episode 201 - Aired 7/3/2018
Why do juveniles falsely confess to crimes? What makes them more vulnerable than adults to this shocking, counterintuitive phenomenon? Through the lens of Brendan Dassey's interrogation and confession (as featured in Netflix's "Making a Murderer" documentary), developmental psychology professor and researcher Lindsay Malloy breaks down the science underlying false confessions and calls for change in the way kids are treated by a legal system designed for adults.

#7 - Steve Boyes: How we're saving one of Earth's last wild places
Season 2018 - Episode 202 - Aired 7/3/2018
Navigating territorial hippos and active minefields, TED Fellow Steve Boyes and a team of scientists have been traveling through the Okavango Delta, Africa's largest remaining wetland wilderness, to explore and protect this near-pristine habitat against the rising threat of development. In this awe-inspiring talk packed with images, he shares his work doing detailed scientific surveys in the hopes of protecting this enormous, fragile wilderness.

#8 - Jan Rader: In the opioid crisis, here's what it takes to save a life
Season 2019 - Episode 1 - Aired 1/2/2019
As a fire chief and first responder, Jan Rader has spent her career saving lives. But when the opioid epidemic hit her town, she realized they needed to take a brand-new approach to life-saving. In this powerful, hopeful talk, Rader shows what it's like on the front lines of this crisis -- and how her community is taking an unusual new approach to treating substance-abuse disorder that starts with listening.

#9 - Steve Boyes: How we're saving one of Earth's last wild places
Season 2018 - Episode 204 - Aired 7/3/2018
Navigating territorial hippos and active minefields, TED Fellow Steve Boyes and a team of scientists have been traveling through the Okavango Delta, Africa's largest remaining wetland wilderness, to explore and protect this near-pristine habitat against the rising threat of development. In this awe-inspiring talk packed with images, he shares his work doing detailed scientific surveys in the hopes of protecting this enormous, fragile wilderness.

#10 - Jakob Magolan: A crash course in organic chemistry
Season 2018 - Episode 206 - Aired 7/6/2018
Jakob Magolan is here to change your perception of organic chemistry. In an accessible talk packed with striking graphics, he teaches us the basics while breaking the stereotype that organic chemistry is something to be afraid of.

#11 - Gary Liu: The rapid growth of the Chinese internet -- and where it's headed
Season 2018 - Episode 207 - Aired 7/9/2018
The Chinese internet has grown at a staggering pace — it now has more users than the combined populations of the US, UK, Russia, Germany, France and Canada. Even with its imperfections, the lives of once-forgotten populations have been irrevocably elevated because of it, says South China Morning Post CEO Gary Liu. In a fascinating talk, Liu details how the tech industry in China has developed — from the innovative, like AI-optimized train travel, to the dystopian, like a social credit rating that both rewards and restricts citizens.

#12 - Kola Masha: How farming could employ Africa's young workforce -- and help build peace
Season 2018 - Episode 208 - Aired 7/10/2018
Africa's youth is coming of age rapidly, but job growth on the continent isn't keeping up. The result: financial insecurity and, in some cases, a turn towards insurgent groups. In a passionate talk, agricultural entrepreneur Kola Masha details his plan to bring leadership and investment to small farmers in Africa — and employ a rising generation.

#13 - Vishaan Chakrabarti: How we can design timeless cities for our collective future
Season 2018 - Episode 194 - Aired 6/25/2018
There's a creeping sameness in many of our newest urban buildings and streetscapes, says architect Vishaan Chakrabarti. And this physical homogeneity — the result of regulations, mass production, safety issues and cost considerations, among other factors — has blanketed our planet in a social and psychological homogeneity, too. In this visionary talk, Chakrabarti calls for a return to designing magnetic, lyrical cities that embody their local cultures and adapt to the needs of our changing world and climate.

#14 - Elizabeth Lyle: How to break bad management habits before they reach the next generation of leaders
Season 2019 - Episode 2 - Aired 1/3/2019
Companies are counting on their future leaders to manage with more speed, flexibility and trust than ever before. But how can middle managers climb the corporate ladder while also challenging the way things have always been done? Leadership expert Elizabeth Lyle offers a new approach to breaking the rules while you're on your way up, sharing creative ways organizations can give middle managers the space and coaching they need to start leading differently.

#15 - Lýdia Machová: The secrets of learning a new language
Season 2019 - Episode 3 - Aired 1/4/2019
Want to learn a new language but feel daunted or unsure where to begin? You don't need some special talent or a "language gene," says Lýdia Machová. In an upbeat, inspiring talk, she reveals the secrets of polyglots (people who speak multiple languages) and shares four principles to help unlock your own hidden language talent -- and have fun while doing it.

#16 - Dan Gibson: How to build synthetic DNA and send it across the internet
Season 2018 - Episode 210 - Aired 7/11/2018
Biologist Dan Gibson edits and programs DNA, just like coders program a computer. But his "code" creates life, giving scientists the power to convert digital information into biological material like proteins and vaccines. Now he's on to a new project: "biological transportation," which holds the promise of beaming new medicines across the globe over the internet. Learn more about how this technology could change the way we respond to disease outbreaks and enable us to download personalized prescriptions in our homes.

#17 - Dina Katabi: A new way to monitor vital signs (that can see through walls)
Season 2018 - Episode 211 - Aired 7/12/2018
At MIT, Dina Katabi and her team are working on a bold new way to monitor patients' vital signs in a hospital (or even at home), without wearables or bulky, beeping devices. Bonus: it can see through walls. In a mind-blowing talk and demo, Katabi previews a system that captures the reflections of signals like Wi-Fi as they bounce off people, creating a reliable record of vitals for healthcare workers and patients. And in a brief Q&A with TED curator Helen Walters, Katabi discusses safeguards being put in place to prevent people from using this tech to monitor somebody without their consent.

#18 - Paula Stone Williams and Jonathan Williams: The story of a parent's transition and a son's redemption
Season 2019 - Episode 4 - Aired 1/7/2019
Paula Stone Williams knew from a young age that she was transgender. But as she became a parent and prominent evangelical pastor, she feared that coming out would mean losing everything. In this moving, deeply personal talk, Paula and her son Jonathan Williams share what Paula's transition meant for their family -- and reflect on their path to redemption. As Jonathan says: "I cannot ask my father to be anything other than her true self."

#19 - Elizabeth White: An honest look at the personal finance crisis
Season 2018 - Episode 212 - Aired 7/12/2018
Millions of baby boomers are moving into their senior years with empty pockets and declining choices to earn a living. And right behind them is a younger generation facing the same challenges. In this deeply personal talk, author Elizabeth White opens up an honest conversation about financial trouble and offers practical advice for how to live a richly textured life on a limited income.

#20 - Lili Haydn: "The Last Serenade"
Season 2018 - Episode 213 - Aired 7/13/2018
In a stirring, emotional performance, violinist Lili Haydn plays a selection from her musical "The Last Serenade."

#21 - Renzo Piano: The genius behind some of the world's most famous buildings
Season 2018 - Episode 214 - Aired 7/13/2018
Legendary architect Renzo Piano — the mind behind such indelible buildings as The Shard in London, the Centre Pompidou in Paris and the new Whitney Museum of Art in New York City — takes us on a stunning tour through his life's work. With the aid of gorgeous imagery, Piano makes an eloquent case for architecture as the answer to our dreams, aspirations and desire for beauty. "Universal beauty is one of the few things that can change the world," he says. "This beauty will save the world. One person at a time, but it will do it."

#22 - Will Marshall: The mission to create a searchable database of Earth's surface
Season 2018 - Episode 215 - Aired 7/16/2018
What if you could search the surface of the Earth the same way you search the internet? Will Marshall and his team at Planet use the world's largest fleet of satellites to image the entire Earth every day. Now they're moving on to a new project: using AI to index all the objects on the planet over time — which could make ships, trees, houses and everything else on Earth searchable, the same way you search Google. He shares a vision for how this database can become a living record of the immense physical changes happening across the globe. "You can't fix what you can't see," Marshall says. "We want to give people the tools to see change and take action."

#23 - Rebeca Hwang: The power of diversity within yourself
Season 2018 - Episode 216 - Aired 7/17/2018
Rebeca Hwang has spent a lifetime juggling identities — Korean heritage, Argentinian upbringing, education in the United States — and for a long time she had difficulty finding a place in the world to call home. Yet along with these challenges came a pivotal realization: that a diverse background is a distinct advantage in today's globalized world. In this personal talk, Hwang reveals the endless benefits of embracing our complex identities — and shares her hopes for creating a world where identities aren't used to alienate but to bring people together instead.

#24 - Prosanta Chakrabarty: Four billion years of evolution in six minutes
Season 2018 - Episode 186 - Aired 6/15/2018
Did humans evolve from monkeys or from fish? In this enlightening talk, ichthyologist and TED Fellow Prosanta Chakrabarty dispels some hardwired myths about evolution, encouraging us to remember that we're a small part of a complex, four-billion-year process — and not the end of the line. "We're not the goal of evolution," Chakrabarty says. "Think of us all as young leaves on this ancient and gigantic tree of life — connected by invisible branches not just to each other, but to our extinct relatives and our evolutionary ancestors."

#25 - John Doerr: Why the secret to success is setting the right goals
Season 2018 - Episode 175 - Aired 6/11/2018
Our leaders and institutions are failing us, but it's not always because they're bad or unethical, says venture capitalist John Doerr — often, it's simply because they're leading us toward the wrong objectives. In this practical talk, Doerr shows us how we can get back on track with "Objectives and Key Results," or OKRs — a goal-setting system that's been employed by the likes of Google, Intel and Bono to set and execute on audacious goals. Learn more about how setting the right goals can mean the difference between success and failure — and how we can use OKRs to hold our leaders and ourselves accountable.