TED Tech

From the construction of virtual realities to the internet of things to the watches on our wrists—technology's influence is everywhere. Its role in our lives is evolving fast, and we're faced with riveting questions and tough challenges that sit at the intersection of technology and humanity. Listen in every Friday, with host, journalist Sherrell Dorsey, as TED speakers explore the way tech shapes how we think about society, science, design, business, and more.

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279 episodes
Updated Friday

Episodes279

Newest first

Feb 16, 2024 · 12 min
Why you should ditch deadly fossil-fuel appliances | Donnel Baird
In the US, people spend the overwhelming majority of their time inside buildings that burn fossil fuels, which are bad for both the environment and human health. (Think: breathing in air pollution from gas stoves, furnaces and water heaters.) If we're going to fix this problem, we need to retrofit millions of buildings with all-electric equipment, says energy upgrader Donnel Baird. Hear about his ambitious plan to rip the fossil fuel infrastructure out of aging buildings and upgrade it with smar
Feb 9, 2024 · 13 min
How one small idea led to $1 million of paid water bills | Tiffani Ashley Bell
When programmer Tiffani Ashley Bell learned that thousands of people in Detroit were facing water shutoffs because they couldn't afford to pay their bills, she decided to take action -- in the simplest, most obvious way possible. It's an inspiring story of how one person with tenacity and an idea can create monumental change -- and a demonstration that each of us can find our own way to help the world, even if it means starting without all the answers.
Feb 2, 2024 · 14 min
When AI can fake reality, who can you trust? | Sam Gregory
We're fast approaching a world where widespread, hyper-realistic deepfakes lead us to dismiss reality, says technologist and human rights advocate Sam Gregory. What happens to democracy when we can't trust what we see? Learn three key steps to protecting our ability to distinguish human from synthetic — and why fortifying our perception of truth is crucial to our AI-infused future.
Jan 26, 2024 · 15 min
How to harness abundant, clean energy for 10 billion people | Julio Friedmann
We can produce abundant, sustainable and cheap energy — for everyone, says physicist Julio Friedmann. He explores the infrastructure, innovation and investment needed to supply energy to 10 billion people, offering case studies from Chile's refurbished supply chain, built in partnership with Japan, to Namibia's budding clean hydrogen production, inviting us to envision a greener, more equitably powered world.
Jan 19, 2024 · 7 min
The most important century in human history | George Zaidan
Is it possible that this century is the most important one in human history? The 21st century has already proven to be a period of rapid growth. We're on the cusp of developing new technologies that could entirely change the way people live— and could contribute to unprecedented levels of existential risk. Explore how the decisions we make now might have a major impact on humanity's future. This TED-Ed lesson was directed by Jon Mayes, AIM Creative Studios, narrated by George Zaidan and the musi
Jan 12, 2024 · 12 min
The powerful possibilities of recycling the world's batteries | Emma Nehrenheim
The world has plenty of clean energy. The problem is storing that energy and getting it where we need it, when we need it, says battery recycling pioneer Emma Nehrenheim. While batteries are fundamental to powering a sustainable future, their production is surprisingly harsh on the environment. She lays out the science behind a breakthrough in recycling a battery's core elements, offering a manufacturing solution that could vastly reduce the industry's environmental impact and demand for new mat
Jan 11, 2024 · 11 min
Over 20,000 joined the NPR/Columbia study to move throughout the day. Did it work? | Body Electric
This is an episode we think you might like of Body Electric
Jan 5, 2024 · 15 min
The awesome potential of many metaverses | Agnes Larsson
In the multitude of metaverses that exist there are infinite possibilities for inclusivity and creativity. As we revisit a talk that invites us to craft our own digital universes, Minecraft's game director Agnes Larsson shares how the experience of building and sharing metaverses can foster dialogue, friendship and trust — pointing to the meaningful impact virtual worlds can have on the real world. Following the talk, Sherrell explores how these safer metaverses have the power to spill beyond th
Dec 29, 2023 · 11 min
How global virtual communities can help kids achieve their dreams | Matthew Garcia
How do we make historically exclusive fields like classical music, fine arts or academic research more accessible to everyone? Education equalizer and violist Matthew Garcia thinks one way to remove barriers is to create free, virtual education programs that connect talented young minds to the resources they need to thrive in their future careers. Learn more as we revisit this talk about the power of virtual nonprofits to overcome geographic borders and deliver opportunity -- and how you can hel
Dec 22, 2023 · 16 min
Is technology our savior — or our slayer? | Ruha Benjamin
When it comes to technology, we're often presented with two contrasting visions of the future: one where technology fulfills all our desires, and another where it leads to chaos and conflict. Sociologist Ruha Benjamin is here with a more radical vision of the future — one where humanity isn't saved or slayed by technology, but rather uses it to uplift ordinary people and make things like health care and housing for all a reality. After the talk, Sherrell expands on how tech improves individual l
Dec 15, 2023 · 12 min
AI is dangerous, but not for the reasons you think | Sasha Luccioni
AI won't kill us all — but that doesn't make it trustworthy. Instead of getting distracted by future existential risks, AI ethics researcher Sasha Luccioni thinks we need to focus on the technology's current negative impacts, like emitting carbon, infringing copyrights and spreading biased information. She offers practical solutions to regulate our AI-filled future — so it's inclusive and transparent.
Dec 8, 2023 · 14 min
How to make learning as addictive as social media | Luis von Ahn
When technologist Luis von Ahn was building the popular language-learning platform Duolingo, he faced a big problem: Could an app designed to teach you something ever compete with addictive platforms like Instagram and TikTok? He explains how Duolingo harnesses the psychological techniques of social media and mobile games to get you excited to learn — all while spreading access to education across the world.
Dec 1, 2023 · 17 min
A brain implant that turns your thoughts into text | Tom Oxley
What if you could control your digital devices using just the power of thought? That's the incredible promise behind the Stentrode — an implantable brain-computer interface that collects and wirelessly transmits information directly from the brain, without the need for open surgery. Neurotech entrepreneur Tom Oxley describes the intricacies of this breakthrough technology, which is currently enrolling participants in human trials, as well as how it could help restore dignity to those with disabi
Nov 24, 2023 · 15 min
The tech we need to fight workplace ageism | Piyachart Phiromswad
From exoskeletons and robotic arms to the mass adoption of remote work, economist Piyachart Phiromswad explores what seniors need to overcome the physical, mental and societal barriers to employment, a necessary shift in our rapidly aging world. Learn more about how these tools could empower elderly workers and better the world — for everyone. After the talk, Sherrell explores the ethical considerations of keeping aging populations in the workforce for the sake of productivity.
Nov 17, 2023 · 35 min
Uber, and how to fix things when trust is broken | Fixable
This is an episode of Fixable, another podcast from the TED Audio Collective. This week, Anne and Frances dive into their area of expertise: trust. Frances recounts the time when she was brought in to help Uber fix their huge trust breakdown. Using Uber as a case study, they explain the three pillars of trust — authenticity, empathy and logic — and actionable solutions to strengthen each leg when they’re on shaky ground.
Nov 10, 2023 · 15 min
Can AI help solve the climate crisis? | Sims Witherspoon
“AI can be a transformational tool in our fight against climate change," says Sims Witherspoon, a leader at the AI research lab Google DeepMind. Using wind power as her case study, she explains how powerful neural networks can help us better predict Earth's changing ecosystems and accelerate the breakthrough science needed to create a carbon-free energy supply.
Nov 3, 2023 · 18 min
How "digital twins" could help us predict the future | Karen Willcox
From health-tracking wearables to smartphones and beyond, data collection and computer modeling have become a ubiquitous part of everyday life. Advancements in these areas have given birth to "digital twins," or virtual models that evolve alongside real-world data. Aerospace engineer Karen Willcox explores the incredible possibilities these systems offer across engineering, climate studies and medicine, sharing how they could lead to personalized medicine, better decision-making and more.
Oct 27, 2023 · 9 min
The future of machines that move like animals | Robert Katzschmann
Imagine a boat that propels by moving its "tail" from side to side, just like a fish. That's the kind of machine that TED Fellow Robert Katzschmann's lab builds: soft-bodied robots that imitate natural movements with artificial, silent muscles. He lays out his vision for machines that take on mesmerizing new forms, made of softer and more lifelike materials — and capable of discovering unknown parts of the world.
Oct 20, 2023 · 12 min
War, AI and the new global arms race | Alexandr Wang
Lethal drones with facial recognition, armed robots, autonomous fighter jets: we're at the dawn of a new age of AI-powered warfare, says technologist Alexandr Wang. He explores why data will be the secret weapon in this uncharted landscape and emphasizes the need to consider national security when developing new tech — or potentially face all-out AI warfare.
Oct 13, 2023 · 15 min
Could an orca give a TED Talk? | Karen Bakker
What if we could hear nature's ultrasonic communication -- and talk back? From a bat's shrill speech to a peacock's infrasound mating call, conservation technology researcher Karen Bakker takes us through a sound bath of animal noises that are far outside humanity's range of hearing, demonstrating how artificial intelligence has translated the incredible complexity of nature's soundtrack. She asks us to consider the moral weight of such transformative technology and explores the futuristic oppor