Great leadership is a network, not a hierarchy | Gitte Frederiksen

Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. Today we're sharing a special episode of The TED AI Show, our newest podcast about the technology that's changing our lives. Non Player Characters --NPCs for short-- have always been a huge part of what makes video games engaging, from Cortana in Halo to Navi in The Legend of Zelda. But interactions with NPCs were always limited to a pre-written script. Until now. Purnendu Mukherjee is the CEO of Convai, a platform that enables developers to create NPCs with human-like conversational abilities. He joins The TED AI Show host Bilawal Sidhu to chat about our evolving relationship with "AI characters” and what we gain and lose when our digital relationships are so life-like, it almost doesn’t matter who (or what) is on the other end.  For transcripts for The TED AI Show, visit go.ted.com/TTAIS-transcripts   

What does it actually take to make meaningful change? Conservationist Kristine McDivitt Tompkins and playwright and theater director Amir Nizar Zuabi reflect on the deep connection between human suffering and environmental degradation and the community-building power of art to raise awareness. With equal parts hope and concern for the future, they speak to the urgent need to act now — and emphasize the transcendent power of compassion-fueled collaboration. (This conversation is part of “TED Intersections,” a new series featuring thought-provoking conversations between experts exploring ideas at the intersection of their experience.)

When playwright David Finnigan staged a play titled "Kill Climate Deniers" in 2014, he knew it'd get a strong reaction. What he wasn't prepared for was the idea that the blowback might actually cause him to rethink his own response to climate change. But as he shares in this delightfully engaging talk, his conversations with skeptics of all stripes ultimately taught him a fresh and fascinating lesson about how we can all think about — and act upon — the climate crisis.

We waste a staggering one trillion dollars worth of food each year, significantly contributing to greenhouse gas emissions and the climate crisis. Food waste expert Dana Gunders shares innovative solutions to reduce waste — from solar-powered cold rooms to apps that sell discounted restaurant leftovers — and shares tips on how you can keep good food from going to the trash.

Middle school is a time like no other, as significant biological and emotional changes coincide with profound personal growth, says educator Jerome Hunter. The middle school for boys that he founded centers on a program that helps redefine masculinity through what he calls the three "Cs" -- confidence, communication and community. He shares the growth he's seen when boys are encouraged to explore their own empathy -- and how it could lead to a more just world.