How does the metaphorical lightbulb go off? Is it a flash of genius? The power of crowds? These heady talks explore the nature of ideas themselves: Where they come from, how they evolve, and how each of us can nurture them.

With all the intensity and brilliance for which he is known, Alan Kay envisions better techniques for teaching kids by using computers to illustrate experience in ways -– mathematically and scientifically -- that only computers can.

These powerful talks offer ideas for rethinking—and hopefully stopping—the spread of HIV and AIDS.

From Twitter to word of mouth, explore the ways ideas spread so quickly from person to person.

What does exercise do to your brain? Can psychedelics treat depression? From smart daily habits to new medical breakthroughs, welcome to TED Health, with host Dr. Shoshana Ungerleider. TED speakers answer questions you never even knew you had, and share ideas you won't hear anywhere else, all around how we can live healthier lives. About the hos...

A collaboration between Great Big Story and TED, this series reveals the incredible things that happen when someone unveils an idea so inspiring it moves others to act. Watch the stories of people whose lives have been intrinsically changed by the idea in a TED Talk.

Being alone takes its toll. Feel like it's time to make a real connection? Third-wheel with Rainn Wilson (star of "The Office") as he dates some of the best ideas on TED.com and discover your perfect "idea mate" along the way.

At TEDGlobal 2010, author Matt Ridley shows how, throughout history, the engine of human progress has been the meeting and mating of ideas to make new ideas. It's not important how clever individuals are, he says; what really matters is how smart the collective brain is.

Few individuals have influenced the world and many of today's thinkers like Plato. He created the first Western university and was teacher to Ancient Greece's greatest minds, including Aristotle. But even he wasn't perfect. Along with his great ideas, Plato had a few that haven't exactly stood the test of time. Wisecrack gives a brief rundown of...

Illuminate your journey as an entrepreneur with these insightful talks primed to inspire the current and future generations of female founders ready to embrace new heights of success.

The Year In Ideas 2015.

What do 24,000 ideas look like? Ecologist Eric Berlow and physicist Sean Gourley apply algorithms to the entire archive of TEDx Talks, taking us on a stimulating visual tour to show how ideas connect globally.

Nandan Nilekani, the visionary co-founder of outsourcing pioneer Infosys, explains four brands of ideas that will determine whether India can continue its recent breakneck progress.

Great incubators of innovations are not limited to garages in Silicon Valley. Manov Subodh charts three principles for sparking entrepreneurial ventures and ideas in people around the world. From dreaming big to getting over the fear of failure, he offers case studies that guide us through the whole process.

The "dismal science" truly shines in this optimistic talk, as economist Alex Tabarrok argues free trade and globalization are shaping our once-divided world into a community of idea-sharing more healthy, happy and prosperous than anyone's predictions.

WorkLife with Adam Grant Tuesday, April 26, 2022 [THEME MUSIC] [00:01:00] VOICE 1: Dear Adam, I have a great investment opportunity for you. Let me tell you about my startup. [00:06:87]VOICE 2: I know we've never met, but here's why you should endorse my book [00:00:12] VOICE 3: Is your team hiring? Cause I'd be a great fit. [00:00:22...

From Mozart's operatic arias of love to João Gilberto's bossa nova tunes of play, music is full of ideas worth spreading. In a fun and symphonic talk, acclaimed orchestra conductor Sergio Feferovich showcases the ways in which music can introduce ideas that reach far beyond the notes composed.

These TED Talks and interviews broke news, made history and shaped the story of 2022.

Hannah Gadsby's groundbreaking special "Nanette" broke comedy. In a talk about truth and purpose, she shares three ideas and three contradictions. Or not.

People often credit their ideas to individual "Eureka!" moments. But Steven Johnson shows how history tells a different story. His fascinating tour takes us from the "liquid networks" of London's coffee houses to Charles Darwin's long, slow hunch to today's high-velocity web.

From the TED archives: The legendary graphic designer Milton Glaser dives deep into a new painting inspired by Piero della Francesca. From here, he muses on what makes a convincing poster, by breaking down an idea and making it new.

Amazing inventions, activism and tons of genius delivered by an awesome group of kids and teens.

From powering the planet with untapped clean energy to making climate action go viral, these 10 transformative ideas from the intersection of tech and sustainability are driving positive change — and building a greener future for generations to come. (Curated in partnership with Acura)

Huge ideas from physics.

Great pitches can seem like genius or magic. But you don't have to be a great salesperson to give a great pitch. Whether you're floating an idea at a team meeting, looking for investors for your startup, or applying for your next job, life is full of pitching moments. In this episode, we bust myths about what it takes to drum up excitement–and s...

About the host Modupe Akinola Modupe Akinola is an experienced educator and business professional who has spent her career leading and advising global organizations on their strategic direction and leadership effectiveness. Modupe currently holds the position of Barbara and David Zalaznick Professor of Business and Director of the Bernstein Cen...

TED is on a mission to discover and champion the ideas that will shape tomorrow. Reflecting on the evolution of that mission, TED's Chris Anderson and Monique Ruff-Bell cast a visionary gaze on the organization's future — including a revamped tagline, a renewed emphasis on debate and the launch of an exciting new conference — and explore the ind...

Inspiring words -- and smart ideas -- about standing up for yourself, even when it seems impossible.

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849.

As 2015 comes to a close, we'd like to celebrate all of the amazing TEDx events that took place this year. Explore this mosaic of beautiful images from TEDx events around the world, and zoom in to find your event!