A pioneer in research on play, Dr. Stuart Brown says humor, games, roughhousing, flirtation and fantasy are more than just fun. Plenty of play in childhood makes for happy, smart adults -- and keeping it up can make us smarter at any age.

Your plan to set up your friend Carey with your acquaintance Emerson is finally coming together. You've made them a dinner reservation, but suddenly realize that there's a problem: Carey is always late. You really want this relationship to work— what if you told Carey dinner was at 6 instead of 6:30, so they arrived on time? Is it okay to lie? S...

The internet can be an ugly place, but you won't find bullies or trolls on Stuart Duncan's Minecraft server, AutCraft. Designed for children with autism and their families, AutCraft creates a safe online environment for play and self-expression for kids who sometimes behave a bit differently than their peers (and who might be singled out elsewhe...

By 2050, the global population is projected to reach 9.8 billion. How are we going to feed everyone? Investment-banker-turned-farmer Stuart Oda points to indoor vertical farming: growing food on tiered racks in a controlled, climate-proof environment. In a forward-looking talk, he explains how this method can maintain better safety standards, sa...

Western countries throw out nearly half of their food, not because it’s inedible -- but because it doesn’t look appealing. Tristram Stuart delves into the shocking data of wasted food, calling for a more responsible use of global resources.

How can we harness the power of superintelligent AI while also preventing the catastrophe of robotic takeover? As we move closer toward creating all-knowing machines, AI pioneer Stuart Russell is working on something a bit different: robots with uncertainty. Hear his vision for human-compatible AI that can solve problems using common sense, altr...

What does real scientific work look like? As neuroscientist Stuart Firestein jokes: It looks a lot less like the scientific method and a lot more like "farting around ... in the dark." In this witty talk, Firestein gets to the heart of science as it is really practiced and suggests that we should value what we don't know -- or "high-quality igno...

With Coursera, Daphne Koller and co-founder Andrew Ng are bringing courses from top colleges online, free, for anyone who wants to take them.

Stuart Oda is an indoor urban farmer with a passion for innovation and sustainability. His goal: democratize access to fresh and nutritious food by democratizing the means and knowledge of production.

Historian Elizabeth Stordeur Pryor leads a thoughtful and history-backed examination of one of the most divisive words in the English language: the N-word. Drawing from personal experience, she explains how reflecting on our points of encounter with the word can help promote productive discussions and, ultimately, create a framework that reshape...

How do music and psychedelics impact your brain? Neuroscientist Frederick Streeter Barrett discusses the specific neural regions activated when you listen to music and undergo the effects of psychedelic drugs like LSD or psilocybin (magic mushrooms). Learn about his research on how these experiences, when paired with the right conditions, may su...

Thinking startup? David S. Rose's rapid-fire TED U talk on pitching to a venture capitalist tells you the 10 things you need to know about yourself -- and prove to a VC -- before you fire up your slideshow.

Fun doesn’t stop at adulthood. Reconnect with your sense of wonder and imagination in these playful talks.

How can an established company maintain a startup mentality? Intrapreneur Shoel Perelman argues that first it must retain its internal rebels. To do so, Perelman suggests a system inspired by online dating that matches rebels from big companies with small companies that need their skills and keeps the entrepreneurial spirit alive in the biggest ...

Stuart Duncan is the creator of AutCraft, the first Minecraft server for children with autism and their families.

Stuart Russell wrote the standard text on AI; now he thinks deeply on AI's future -- and the future of us humans, too.

Financial literacy isn't a skill -- it's a lifestyle. Take it from Curtis "Wall Street" Carroll. As an incarcerated individual, Carroll knows the power of a dollar. While in prison, he taught himself how to read and trade stocks, and now he shares a simple, powerful message: we all need to be more savvy with our money.

From a scientist’s perspective, life is one big experiment. These talks demonstrate that science doesn’t just happen -- it takes determination, unwavering curiosity and a big leap into the unknown.

It's hard to know where to start with personal finance — saving, budgeting and everything else in between. These TED Talks provide insightful perspectives and practical advice to help you face your financial situation with honesty and compassion.

A decade ago, Robin Chase founded Zipcar in the US, now the largest car-sharing company in the world. Now she's exploring the next level of car-sharing: Buzzcar, a French startup that lets people rent their own cars to others. The details are fascinating (how does insurance work, exactly?), and the larger vision (she calls it Peers, Inc.) points...

It's easy to worry about food: Are we eating the wrong stuff? What about people who don't have enough to eat? These talks examine the problems -- and some compelling solutions.

As the founder of a startup, Tracy Young often worried that employees and investors valued male CEOs more -- and that being a woman compromised her position as a leader. In this brave, personal talk, she gives an honest look at the constraints women face when trying to adapt to a male-dominated business culture -- and shares how she developed th...

Rebeca Hwang is co-founder and managing director of Rivet Ventures, investing in solutions for women and empowering their choices.

Karoli Hindriks is the CEO and founder of Jobbatical, a platform on a mission to make immigration smart.

"The Pitch Coach" David S. Rose is an expert on the business pitch. As an entrepreneur, he has raised millions for his own companies. As an investor, he has funded millions more.

Play invites creativity and collaboration, and can inspire you to think out of the box! Take a recess and learn about the benefits of connecting with your inner-child.

Tristram Stuart sounds the warning bell on global food waste, calling for us to change the systems whereby large quantities of produce and other foods end up in trash heaps.

Stuart Firestein teaches students and “citizen scientists” that ignorance is far more important to discovery than knowledge.

Stuart Brown's research shows play is not just joyful and energizing -- it's deeply involved with human development and intelligence. Through the National Institute for Play, he's working to better understand its significance.

Elizabeth Stordeur Pryor writes, teaches and engages questions on race and racism in the US.