Octopus, squid and cuttlefish -- collectively known as cephalopods -- have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing footage of the camouflaging abilities of cephalopods, which can change their skin color and texture in a flash. Learn how their smart skin, and their ability to deploy it in sophisticated ways, could be evidence of an alternative form of intelligence -- and how it could lead to breakthroughs in AI, fabrics, cosmetics and beyond.

This animation is part of the TED-Ed series, "There's a Poem for That," which features animated interpretations of poems both old and new that give language to some of life's biggest feelings. [Poem by William Butler Yeats, directed by Eoin Duffy, music by Cypher Audio].

Design gives form to the future, says architect Bjarke Ingels. In this worldwide tour of his team's projects, journey to a waste-to-energy power plant (that doubles as an alpine ski slope) and the LEGO Home of the Brick in Denmark -- and catch a glimpse of cutting-edge flood resilience infrastructure in New York City as well as an ambitious plan to create floating, sustainable cities that are adapted to climate change.

This animation is part of the TED-Ed series, "There's a Poem for That," which features animated interpretations of poems both old and new that give language to some of life's biggest feelings. [Poem by Brendan Constantine, directed by Anna Samo & Lisa LaBracio, music by Weston Fonger].

In life's toughest moments, how do you go on living? Kate Bowler has been exploring this question ever since she was diagnosed with stage IV cancer at age 35. In a profound, heartbreaking and unexpectedly funny talk, she offers some answers -- challenging the idea that "everything happens for a reason" and sharing hard-won wisdom about how to make sense of the world after your life is suddenly, completely changed. "I believe that in the darkness, even there, there will be beauty and there will be love," she says.

It's an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and attaches a glowing plastic clip to our finger. Suddenly, a digital screen reads out the oxygen level in our bloodstream. How did that happen? Sajan Saini shows how pairing light with integrated photonics is leading to new medical technologies and less invasive diagnostic tools. [Directed by Artrake Studio, narrated by Addison Anderson].

Our society is in the midst of a social crisis, says op-ed columnist and author David Brooks: we're trapped in a valley of isolation and fragmentation. How do we find our way out? Based on his travels across the United States -- and his meetings with a range of exceptional people known as "weavers" -- Brooks lays out his vision for a cultural revolution that empowers us all to lead lives of greater meaning, purpose and joy.

César Hidalgo has a radical suggestion for fixing our broken political system: automate it! In this provocative talk, he outlines a bold idea to bypass politicians by empowering citizens to create personalized AI representatives that participate directly in democratic decisions. Explore a new way to make collective decisions and expand your understanding of democracy.

César Hidalgo nos propone una idea radical para arreglar el sistema político roto: ¡automatízalo! En una charla que te hace reflexionar, explica la idea de cómo llegar a reemplazar a los políticos para empoderar a los ciudadanos con agentes virtuales personalizados que voten directamente en los proyectos de ley. Explora una nueva manera de tomar decisiones colectivas y desarrolla su compresión de la democracia.

For nearly a century, ten inkblots have been used as an almost mystical personality test. Long kept confidential for psychologists and their patients, the mysterious images were said to draw out the workings of a person's mind. But what can inkblots really tell us, and how does this test work? Damion Searls details how the Rorschach Test can help us understand the patterns of our perceptions. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson, music by Deniz Dogancay].