Is there a role for carbon credits in the transition to a fair, net-zero future? | TED Countdown

Digital creator Dylan Marron has racked up millions of views for projects like "Every Single Word" and "Sitting in Bathrooms With Trans People" -- but he's found that the flip side of success online is internet hate. Over time, he's developed an unexpected coping mechanism: calling the people who leave him insensitive comments and asking a simple question: "Why did you write that?" In a thoughtful talk about how we interact online, Marron explains how sometimes the most subversive thing you can do is actually speak with people you disagree with, not simply at them. Listen to his podcast, "Conversations With People Who Hate Me," wherever you get your podcasts.

26 Elo 202210min

The price of insulin in the US is both outrageous and deadly to those who can't live without it. Diabetes advocate Brooke Bennett shares her own struggles living with type 1 diabetes and how the astronomical cost of a life-saving drug leaves millions struggling to survive. A rallying cry for an affordable and humane livelihood for those with chronic illness.

25 Elo 202215min

Neuroscientist Sergiu P. Pasca has made it his life's work to understand how the human brain builds itself -- and what makes it susceptible to disease. In a mind-blowing talk laden with breakthrough science, he shows how his team figured out how to grow "organoids" and what they call brain "assembloids" -- self-organizing clumps of neural tissue derived from stem cells that have shown the ability to form circuits -- and explains how these miniature parts of the nervous system are bringing us closer to demystifying the brain.

24 Elo 202212min

With quick wit and sharp insight, writer Jeanette Winterson lays out a vision of the future where human and machine intelligence meld -- forming what she calls "alternative intelligence" -- and takes a philosophical look at our species, asking: Are we smart enough to survive how smart we are? (Followed by a Q&A with TED's head of curation Helen Walters)

23 Elo 202218min

"The metaverse is already on fire, and we haven't even built it yet," says TED Fellow and video game lawyer Micaela Mantegna. She lays out why the metaverse is at risk of inheriting some of the internet's worst traits, like unchecked surveillance -- and shows how we could redirect its fate through new laws grounded in kindness and connection.

22 Elo 20226min

Taking cues from soft robotics and the natural world, conceptual artist Anicka Yi builds lighter-than-air machines that roam and react like autonomous life forms. Her floating "aerobes" inspire us to think about new ways of living with machines -- and to ponder how they could evolve into living creatures. "What if our machines could be more than just our tools, and instead, a new type of companion species?" she asks.

19 Elo 202210min

Everyone has the right to a clean environment -- but major disparities exist when it comes to who faces the consequences of pollution. Environmental justice leader Peggy Shepard points to the disproportionate impact that hazardous environmental conditions have on Black, brown and Indigenous communities and challenges us to build a truly equitable future that turns "sacrifice zones" -- where community health is sacrificed for the sake of development -- into "green zones" that redress the legacy of pollution and harmful policies.

18 Elo 202211min

What can you hear in silence? In this exploration of sound, host of the podcast "Twenty Thousand Hertz" Dallas Taylor tells the story of arguably the most debated musical composition in recent history -- composer John Cage's iconic piece 4'33" -- and invites you to take notice of the soundscape around you. Watch to the end to experience a performance of 4'33''.

17 Elo 202213min