TED Talks Daily (SD video)

When does vision loss become blindness? Writer, audio producer and editor Andrew Leland explains how his gradual loss of vision revealed a paradoxical truth about blindness -- and shows why it might have implications for how all of us see the world.

Racial inequality provokes passionate opinions and varied ideas of how to build a fair, equitable society. One topic that's been contentiously debated for generations is color blindness: the concept that we should look beyond race when thinking about equity. In this talk, writer and podcast host Coleman Hughes makes a case in favor of the idea, sharing why he thinks the key to reducing inequality and easing racial tensions is replacing race-based policies with class-based ones.

Sharing the inside scoop on how the world's largest food company aims to reach net zero by 2050, Nestlé North America CEO Steve Presley joins TED's Lindsay Levin to discuss the progress they've made so far and where they're investing for sustainability. A big focus will be regenerative agriculture -- producing food in a way that helps the planet instead of harming it -- by working with farmers and other partners across the entire food production process.

What if we could harness the power and value of all that we discard? Circular economy builder Garry Cooper presents a compelling vision for transforming cities into sustainable, circular economies, citing real-world examples of how repurposing materials from buildings to office furniture can significantly reduce greenhouse gas emissions, create jobs and foster economic growth. A hopeful reminder of the profound impact individual actions can have on our shared future.

Unexpected change like an accident, an illness or a relationship that suddenly ends is inevitable -- and disorienting. With a heartfelt and optimistic take on life's curveballs, cognitive scientist Maya Shankar shares how these challenging moments can inspire transformation, offering three questions to ask when facing uncertainty, so you can let go of rigidity and embrace change.

2023 Audacious Project grantee Wanjira Mathai is at the forefront of re-greening the planet. Through the forest restoration initiative Restore Local, she's working to help both Africa's people and its landscapes flourish. Learn more about how her team invests in local restoration projects across the continent -- including a tree-growing movement that aims to revitalize 100 million hectares of African land by 2030. (This ambitious idea is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

Climate justice is taking center stage -- geopolitically, socially and morally. In a contagiously courageous conversation, Member of Parliament in the UK David Lammy and Tennessee state representative Justin J. Pearson discuss how brave leadership can shepherd global movements and uplift historically marginalized communities in the face of humanity's greatest challenge: climate change. "We must have outrage, but we must have optimism as well," says Lammy.

Megafires, or fires that burn more than 100,000 acres, are becoming more frequent worldwide, wreaking havoc on landscapes and communities -- and fire experts say the problem is only going to get worse. George T. Whitesides is focused on fighting these devastating natural disasters through innovative technologies and intentional changes to how we build communities. He presents three emerging solutions to this blazing dilemma, calling for us to redefine our relationship with fire in order to build a more resilient and sustainable future.

Opinions about remote work are plentiful and conflicting -- but what does the research say? Organizational design expert Mark Mortensen identifies the challenges of navigating the hybrid work debate and shares three conversation topics every workplace should explore as people change the way they show up on the job.

What if we could hear nature's ultrasonic communication -- and talk back? From a bat's shrill speech to a peacock's infrasound mating call, conservation technology researcher Karen Bakker takes us through a sound bath of animal noises that are far outside humanity's range of hearing, demonstrating how artificial intelligence has translated the incredible complexity of nature's soundtrack. She asks us to consider the moral weight of such transformative technology and explores the futuristic opportunities presented for conservation, interspecies communication and more.

If we're going to solve the climate crisis, we need to talk about supply chains, says biodiversity champion and 2023 Audacious Project grantee Nicole Rycroft. Her organization, Canopy, partners with key industry leaders to overhaul their base materials in favor of more sustainable alternatives. Learn more about how they're shifting production of everything from T-shirts to the Harry Potter book series out of the world's ancient and endangered forests -- and how solutions for every sector are closer than we think.

How can cities become resilient to the shocks of climate change? As a leading force behind Detroit's ongoing revitalization, Anika Goss spends a lot of time thinking about this question. Connecting the city's industrial past to its sustainable future, she explores the link between climate vulnerability and economic inequity, offering a vision for responding to both challenges at once.

What's it like keeping the lights on during war? Ukrainian energy executive Maxim Timchenko shares how his company has diversified Ukraine's power structures to survive Russian attacks, highlighting the resilience of renewable energy. Hear more about Ukraine's present-day challenges, how it's become a testing ground in the global fight against climate change and the transformative path towards sustainable energy independence.

Decision theorist Eliezer Yudkowsky has a simple message: superintelligent AI could probably kill us all. So the question becomes: Is it possible to build powerful artificial minds that are obedient, even benevolent? In a fiery talk, Yudkowsky explores why we need to act immediately to ensure smarter-than-human AI systems don't lead to our extinction.

Lethal drones with facial recognition, armed robots, autonomous fighter jets: we're at the dawn of a new age of AI-powered warfare, says technologist Alexandr Wang. He explores why data will be the secret weapon in this uncharted landscape and emphasizes the need to consider national security when developing new tech -- or potentially face all-out AI warfare.