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: 10/14/2025Network: YouTubeStatus: Continuing
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#1 - Karissa Sanbonmatsu: The biology of gender, from DNA to the brain

Season 2019 - Episode 8 - Aired 1/10/2019

How exactly does gender work? It's not just about our chromosomes, says biologist Karissa Sanbonmatsu. In a visionary talk, she shares new discoveries from epigenetics, the emerging study of how DNA activity can permanently change based on social factors like trauma or diet. Learn how life experiences shape the way genes are expressed -- and what that means for our understanding of gender.

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#2 - 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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#3 - 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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#4 - 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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#5 - 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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#6 - 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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#7 - 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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#8 - 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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#9 - Mikhail Zygar: What the Russian Revolution would have looked like on social media

Season 2018 - Episode 220 - Aired 7/18/2018

History is written by the victors, as the saying goes — but what would it look like if it was written by everyone? Journalist and TED Fellow Mikhail Zygar is on a mission to show us with Project1917, a "social network for dead people" that posts the real diaries and letters of more than 3,000 people who lived during the Russian Revolution. By showing the daily thoughts of the likes of Lenin, Trotsky and many less celebrated figures, the project sheds new light on history as it once was — and as it could have been. Learn more about this digital retelling of the past as well as Zygar's latest project about the transformative year of 1968.

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#10 - Martin Danoesastro: What are you willing to give up to change the way we work?

Season 2019 - Episode 5 - Aired 1/8/2019

What does it take to build the fast, flexible, creative teams needed to challenge entrenched work culture? For transformation expert Martin Danoesastro, it all starts with one question: "What are you willing to give up?" He shares lessons learned from companies on both sides of the innovation wave on how to structure your organization so that people at all levels are empowered to make decisions fast and respond to change.

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#11 - Chiki Sarkar: How India's smartphone revolution is creating a new generation of readers and writers

Season 2019 - Episode 6 - Aired 1/8/2019

India has the second largest population of any country in the world -- yet it has only 50 decent bookstores, says publisher Chiki Sarkar. So she asked herself: How do we get more people reading books? Find out how Sarkar is tapping into India's smartphone revolution to create a new generation of readers and writers in this fun talk about a fresh kind of storytelling.

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#12 - Renzo Vitale: What should electric cars sound like?

Season 2019 - Episode 7 - Aired 1/9/2019

Electric cars are extremely quiet, offering some welcome silence in our cities. But they also bring new dangers, since they can easily sneak up on unsuspecting pedestrians. What kind of sounds should they make to keep people safe? Get a preview of what the future may sound like as acoustic engineer and musician Renzo Vitale shows how he's composing a voice for electric cars.

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#13 - 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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#14 - Shohini Ghose: A beginner's guide to quantum computing

Season 2019 - Episode 9 - Aired 1/11/2019

A quantum computer isn't just a more powerful version of the computers we use today; it's something else entirely, based on emerging scientific understanding -- and more than a bit of uncertainty. Enter the quantum wonderland with TED Fellow Shohini Ghose and learn how this technology holds the potential to transform medicine, create unbreakable encryption and even teleport information.

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#15 - Stephen Webb: Where are all the aliens?

Season 2018 - Episode 221 - Aired 7/19/2018

The universe is incredibly old, astoundingly vast and populated by trillions of planets — so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet would need to clear in order to host an extraterrestrial civilization — and makes a case for the beauty of our potential cosmic loneliness. "The silence of the universe is shouting, 'We're the creatures who got lucky,'" Webb says.

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#16 - Boy Girl Banjo: "Dead Romance"

Season 2018 - Episode 222 - Aired 7/20/2018

Acoustic duo Anielle Reid and Matthew Brookshire (playing together as Boy Girl Banjo) take the TED stage to perform their original song "Dead Romance," weaving together the sounds of Americana folk music and modern pop.

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#17 - Tamekia MizLadi Smith: How to train employees to have difficult conversations

Season 2018 - Episode 223 - Aired 7/20/2018

It's time to invest in face-to-face training that empowers employees to have difficult conversations, says Tamekia MizLadi Smith. In a witty, provocative talk, Smith shares a workplace training program called "I'm G.R.A.C.E.D." that will inspire bosses and employees alike to communicate with compassion and respect. Bottom line: always let people know why their work matters.

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#18 - Lucy Marcil: Why doctors are offering free tax prep in their waiting rooms

Season 2018 - Episode 224 - Aired 7/23/2018

More than 90 percent of children in the US see a doctor at least once a year, which means countless hours spent in waiting rooms for parents. What if those hours could be used for something productive — like saving money? Through her organization StreetCred, pediatrician and TED Fellow Lucy Marcil is offering free tax prep to parents right in the waiting room, reimagining what a doctor's visit can look like and helping to lift families out of poverty. Learn more about how free tax prep and guidance could be the best poverty prescription we have in the US.

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#19 - Pratik Shah: How AI is making it easier to diagnose disease

Season 2018 - Episode 225 - Aired 7/24/2018

Today's AI algorithms require tens of thousands of expensive medical images to detect a patient's disease. What if we could drastically reduce the amount of data needed to train an AI, making diagnoses low-cost and more effective? TED Fellow Pratik Shah is working on a clever system to do just that. Using an unorthodox AI approach, Shah has developed a technology that requires as few as 50 images to develop a working algorithm — and can even use photos taken on doctors' cell phones to provide a diagnosis. Learn more about how this new way to analyze medical information could lead to earlier detection of life-threatening illnesses and bring AI-assisted diagnosis to more health care settings worldwide.

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#20 - Christina Wallace: How to stop swiping and find your person on dating apps

Season 2018 - Episode 226 - Aired 7/24/2018

Let's face it, online dating can suck. So many potential people, so much time wasted — is it even worth it? Podcaster and entrepreneur Christina Wallace thinks so, if you do it right. In a funny, practical talk, Wallace shares how she used her MBA skill set to invent a "zero date" approach and get off swipe-based apps — and how you can, too.

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#21 - Supasorn Suwajanakorn: Fake videos of real people -- and how to spot them

Season 2018 - Episode 227 - Aired 7/25/2018

Do you think you're good at spotting fake videos, where famous people say things they've never said in real life? See how they're made in this astonishing talk and tech demo. Computer scientist Supasorn Suwajanakorn shows how, as a grad student, he used AI and 3D modeling to create photorealistic fake videos of people synced to audio. Learn more about both the ethical implications and the creative possibilities of this tech — and the steps being taken to fight against its misuse.

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#22 - Bronwyn King: You may be accidentally investing in cigarette companies

Season 2018 - Episode 228 - Aired 7/26/2018

Tobacco causes more than seven million deaths every year — and many of us are far more complicit in the problem than we realize. In a bold talk, oncologist Dr. Bronwyn King tells the story of how she uncovered the deep ties between the tobacco industry and the entire global finance sector, which invests our money in cigarette companies through big banks, insurers and pension funds. Learn how Dr. King has ignited a worldwide movement to create tobacco-free investments and how each of us can play a role in ending this epidemic.

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#23 - Christoph Niemann: You are fluent in this language (and don't even know it)

Season 2018 - Episode 229 - Aired 7/27/2018

Without realizing it, we're fluent in the language of pictures, says illustrator Christoph Niemann. In a charming talk packed with witty, whimsical drawings, Niemann takes us on a hilarious visual tour that shows how artists tap into our emotions and minds — all without words.

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#24 - 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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#25 - Lindsay Malloy: Why teens confess to crimes they didn't commit

Season 2018 - Episode 203 - 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.