Songs are the soundtrack of our lives. But why exactly do they make us feel the way they do? Songwriter Scarlet Keys sits down at a piano to deconstruct the tools musicians use to make a melody unforgettable — from tone and repetition to lyrics and chords — and sheds light on music's ability to transform moments into memories.

Nutritious crops aren't getting to the people who need nutrition most, even in one of the most fertile places on Earth: Indonesia. Exploring some of the forgotten foods from the country's more than 17,000 islands, food entrepreneur Helianti Hillman explains why centering food policy on biodiversity, rather than monoculture, is the key to healthier people and a healthier planet.

What if the secret to a happy relationship isn’t following the rules, but rewriting them? In this refreshing talk, couples therapist Stephanie R. Yates-Anyabwile explores why letting go of traditional societal expectations of romantic relationships — like sharing the same routines or even, in some cases, living together — can help couples embrace their individuality, reduce conflict and build stronger, more fulfilling connections.

To launch new initiatives within the confines of a large corporation, you'll need to work with the system, not against it, says "intrapreneur" Dave Raggio. He shares three lessons on innovation he learned the hard way — so you don't have to. (Made in partnership with Intuit)

Dana R. Fisher calls herself an "apocalyptic optimist" based on her research as a sociologist of large social movements. Her studies suggest that ever-increasing climate disasters will get people out in the streets demanding the action we need. She breaks down how to cultivate resilience to catastrophe in yourself and your community — and how to rally for change in the face of seemingly intractable problems.

You're familiar with the story: a sperm and an egg meet to create an embryo, which has the potential to give rise to new life. But what if you could create a sperm or egg from any cell, even a single skin cell? Biologist Katsuhiko Hayashi discusses the science of in vitro gametogenesis (IVG) — an experimental technique for creating lab-made sperm or eggs out of just about any type of cell — and explores its implications for endangered species, human reproduction and more.

GitHub CEO Thomas Dohmke discusses Europe's readiness to lead the next era of AI innovation, examining how the continent's tech ecosystems stack up against those in the US. In conversation with TEDAI Vienna co-curator Vlad Gozman, Dohmke explains the three key shifts that will help Europe thrive in the age of AI — and shows how GitHub's initiatives can empower anyone to build new ideas around the world.

For a long time, the conveyor belt of ideas moved from the West to the East, says business strategy expert Neeraj Aggarwal. But now, Asia’s rising cultural and intellectual influence is redefining this established order. He explores how Asia’s booming culture and economy — from K-pop to cutting-edge tech — is sparking creative solutions to global challenges and reshaping the future in unexpected ways.

What does a warming planet mean for the foods you love? Hosting a dinner party that features a menu of foods that could disappear within our lifetimes, culinary entrepreneur Sam Kass invites us to chew on the reality of climate change by exploring the things — like chocolate and coffee — it puts at risk.

Will progress in artificial intelligence continue to accelerate, or have we already hit a plateau? Computer scientist Jennifer Golbeck interrogates some of the most high-profile claims about the promises and pitfalls of AI, cutting through the hype to clarify what's worth getting excited about — and what isn't.

We tend to consider romantic partners and family ties to be our most important relationships, but deep friendships can be just as meaningful. In a perspective-shifting talk, author Rhaina Cohen introduces us to the people unsettling norms by choosing a friend as a life partner — and shows why we're all better off recognizing there's more than one kind of significant other.