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.]

Last Updated: 6/2/2026Network: YouTubeStatus: Continuing
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#1 - 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.

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#2 - 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.

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#3 - 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.

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#4 - 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.

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#5 - 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.

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#6 - Jennifer Wilcox: A new way to remove CO2 from the atmosphere

Season 2018 - Episode 205 - Aired 7/5/2018

Our planet has a carbon problem — if we don't start removing carbon dioxide from the atmosphere, we'll grow hotter, faster. Chemical engineer Jennifer Wilcox previews some amazing technology to scrub carbon from the air, using chemical reactions that capture and reuse CO2 in much the same way trees do ... but at a vast scale. This detailed talk reviews both the promise and the pitfalls.

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#7 - 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.

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#8 - 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.

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#9 - 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.

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#10 - 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.

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#11 - 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.

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#12 - 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.

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#13 - 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.

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#14 - 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.

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#15 - 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."

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#16 - 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.

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#17 - 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."

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#18 - 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."

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#19 - 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."

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#20 - 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.

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#21 - Kashmir Hill and Surya Mattu: What your smart devices know (and share) about you

Season 2018 - Episode 217 - Aired 7/18/2018

Once your smart devices can talk to you, who else are they talking to? Kashmir Hill and Surya Mattu wanted to find out — so they outfitted Hill's apartment with 18 different internet-connected devices and built a special router to track how often they contacted their servers and see what they were reporting back. The results were surprising — and more than a little bit creepy. Learn more about what the data from your smart devices reveals about your sleep schedule, TV binges and even your tooth-brushing habits — and how tech companies could use it to target and profile you. (This talk contains mature language.)

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#22 - Mary Maker: Why I fight for the education of refugee girls (like me)

Season 2018 - Episode 218 - Aired 8/15/2018

After fleeing war-torn South Sudan as a child, Mary Maker found security and hope in the school at Kenya's Kakuma Refugee Camp. Now a teacher of young refugees herself, she sees education as an essential tool for rebuilding lives — and empowering a generation of girls who are too often denied entrance into the classroom. "For the child of war, an education can turn their tears of loss into a passion for peace," Maker says.

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#23 - Halima Aden: How I went from child refugee to international model

Season 2018 - Episode 219 - Aired 8/30/2018

Halima Aden made history when she became the first hijab-wearing model on the cover of Vogue magazine. Now she returns to Kenya's Kakuma Refugee Camp — where she was born and lived until the age of seven — to share an inspiring message about what she's learned on the path from child refugee to international model.

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#24 - Poppy Crum: Technology that knows what you're feeling

Season 2018 - Episode 189 - Aired 6/19/2018

What happens when technology knows more about us than we do? Poppy Crum studies how we express emotions — and she suggests the end of the poker face is near, as new tech makes it easy to see the signals that give away how we're feeling. In a talk and demo, she shows how "empathetic technology" can read physical signals like body temperature and the chemical composition of our breath to inform on our emotional state. For better or for worse. "If we recognize the power of becoming technological empaths, we get this opportunity where technology can help us bridge the emotional and cognitive divide," Crum says.

Greg Gage: How sound can hack your memory while you sleep
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#25 - Greg Gage: How sound can hack your memory while you sleep

Season 2018 - Episode 177 - Aired 6/11/2018

Can you cram for a test while you sleep? Our intrepid neuroscientists attempt to enhance memory by running experiments on subjects while they sleep. You'll be surprised by the results.