Electric vehicles have a surprisingly long history. Battery-powered cars have existed since 1881. So why did the world choose to spend over a century investing in fossil fuels? Sherrell explores this question with a talk from engineer Doreen Orishaba. Doreen built Africa's first electric vehicle and now runs 100+ electric buses across East Africa. Her success proves that the countries that did not inherit a broken infrastructure may be best positioned to build what comes next. Then digs deeper into the background of electric cars in a TED-ED lesson from Daniel Sperling and Gil Tal.

Talks featured

How to make transportation quieter, cleaner and cheaper | Doreen Orishaba

TED-ED: The surprisingly long history of electric cars | Daniel Sperling and Gil Tal

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Did you know every time you fill up your gas tank, you’re paying two prices? In this episode, Sherrell shares two talks about what Big Oil has built, what it buried, and what this discovery means for our future. 

Talks featured

How to power the world 24/7 — without oil | Cindy Taff

What the oil industry doesn’t want you to know | Stephanie Honchell Smith

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Will progress in artificial intelligence continue to accelerate, or have we already hit a plateau? Computer scientist Jennifer Golbeck interrogates some of the most high-profile claims about the promises and pitfalls of AI, cutting through the hype to clarify what's worth getting excited about — and what isn't. After the talk, Modupe reminds us that AI is a tool and it's our responsibility to use it wisely.

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“In climate tech, we don’t like talking about money,” says TED Tech host Sherrell Dorsey, but what if avoiding money talk is hurting the planet more than we realize? In this episode, Sherrell is sharing two talks on the past and future of farming and sustainability. Entrepreneur Yi Li speaks on why prioritizing her company’s bottom line is crucial in her work to help Kenyan farmers. Then, Bret Loken explores what farming would look like if it considered profit and scale alongside climate.

Talks featured

The missing piece in climate action (it's not what you think) | Yi Li

Can we create the "perfect" farm? | Brent Loken

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What if we live in a world where infrastructure maintenance is regenerative? Roads, bridges, and buildings won’t have to rely on taxes or tolls to finance repair, but are constructed with materials capable for self-repair? In this episode, Sherrell is sharing two talks on how two engineers are rethinking ways to design infrastructure that’s greener and more sustainable.

Talks featured

The brilliance of bridges and roads that repair themselves | Mark Miodownik

What if cracks in concrete could fix themselves? | Congrui Jin

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From its life-sustaining energy to its explosive geomagnetic storms, the Sun has many mysteries, says astrophysicist Nour E. Rawafi. He sheds light on NASA's latest endeavor to better understand our fiery neighbor and its impact on the future of society: sending the cutting-edge Parker Solar Probe deep into the Sun's atmosphere in humanity's closest-ever approach to a star.

This episode originally aired in 2025.

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Algorithms and AI don’t show us reality, but that doesn’t stop people from treating ChatGPT and online bots as our personalized therapists, travel planners, and editors. In this episode, Sherrell is sharing two talks on how AI is changing the way we’re influenced. From shaping our language to becoming “middle managers of our own thoughts,” these speakers ask what happens when we offload critical thinking to a machine.

Talks featured

Why are people starting to sound like ChatGPT? | Adam Aleksic

How to stop AI from killing your critical thinking | Advait Sarkar

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From local parks to the Amazon rainforest, trees provide shade and shelters for humans, animals, insects, and many other living creatures. They’re the lungs of our planets, but they’re being threatened by deforestation. In this episode, Sherrell is sharing two talks on what happens if the entire Amazon rainforest disappears… and how one land reformer is using satellite imagery to hold tree cutters accountable.

Talk featured

Is the Amazon Rainforest disappearing? | Anna Rothschild

How to see (and stop) deforestation from space | Tasso Azevedo

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Is it effective to engage with politics on social media — and what does it take to make actual change? Katherine Cross is a researcher on online harassment and the author of Log Off: Why Posting and Politics (Almost) Never Mix. She shares why she believes social media is “anti-political” and how virtual engagement will not achieve the necessary political work for us. Katherine and Chris also discuss the limitations of short-form content in conveying decades of geopolitical strife, why our lives would be better off without social media, and the guardrails platforms could utilize to help users engage with posts critically and to slow down viral misinformation.

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We are living through what may be the largest economic bubble in history, spanning AI, cryptocurrency and tech company stocks, says financial analyst Henrik Zeberg. He explores why the current AI-crypto bubble mirrors the great economic frenzies of the past, revealing the psychological forces behind them — and why it looks like we're repeating the same patterns again.

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What if doing your chores were as easy as flipping a switch? In this talk and live demo, roboticist and founder of 1X Bernt Børnich introduces NEO, a humanoid robot designed to help you out around the house. Watch as NEO shows off its ability to vacuum, water plants and keep you company, while Børnich tells the story of its development — and shares a vision for robot helpers that could free up your time to focus on what truly matters.

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