Why we need to know our lives matter | Jennif...

There's a common African proverb: "When elephants fight, it's the grass that suffers." Policy researcher Nanjira Sambuli says we must apply this thinking to today's AI evolution, asking: When tech giants battle for dominance, who gets trampled in the process? She introduces a new ...  Show more

Can anyone become happier? Psychologist Sonja Lyubomirsky studies this question in her lab, doing experiments on "happiness interventions" to see what kinds of actions elicit this sought-after emotion. In a quick talk, she shares the results of her work: a small shift that can ch ...  Show more

It’s not enough to do important work — we need to know it truly matters, says journalist Jennifer Wallace. Drawing on her research into firefighters, caregivers and more, she shows how simple acts of acknowledgment and connection can fuel our sense of purpose in a world that too ...  Show more

What if saving lives and growing a company went hand in hand? Public health expert Myriam Sidibe thinks many businesses are going about social impact all wrong — and leaving millions of dollars on the table at the same time. Drawing from decades of experience, she reveals a playb ...  Show more

Michael Benton looks at the potential effects of climate change on mass extinction. Rich scientific evidence comes from the history of life on Earth -- we just have to ask the right questions to find it. This talk was filmed at TEDxThessaloniki. All TEDx events are organized inde ...  Show more

MIT research scientist Erez Yoeli shares a simple checklist for harnessing the power of reputations to motivate people to act in the interest of others.This talk was filmed at TEDxCambridge. All TEDx events are organized independently by volunteers in the spirit of TED's mission ...  Show more