Louise Mabulo grew up on seemingly strange farming tips from her parents and grandparents — like planting crops during a full moon or burying a rock beneath them. Now a farmer and climate activist herself, she sees how these practical nuggets of wisdom actually have scientific merit. Learn how she's merging traditional knowledge with modern science to help farmers (and the world) adapt to a changing climate.

When it comes to artificial intelligence, what are we actually creating? Even those closest to its development are struggling to describe exactly where things are headed, says Microsoft AI CEO Mustafa Suleyman, one of the primary architects of the AI models many of us use today. He offers an honest and compelling new vision for the future of AI, proposing an unignorable metaphor — a new digital species — to focus attention on this extraordinary moment. (Followed by a Q&A with head of TED Chris Anderson)

The convergence of AI and robotics will unlock a wonderful new world of possibilities in everyday life, says robotics and AI pioneer Daniela Rus. Diving into the way machines think, she reveals how "liquid networks" — a revolutionary class of AI that mimics the neural processes of simple organisms — could help intelligent machines process information more efficiently and give rise to "physical intelligence" that will enable AI to operate beyond digital confines and engage dynamically in the real world.

What does it mean to be an active citizen? It's about more than just voting and paying taxes, says social entrepreneur Gabriel Marmentini. He explains why we can't rely on the state alone to solve all our problems — and presents the four key ingredients for anyone to become a change-maker and engage in solving public issues.

How can Israelis and Palestinians achieve peace? Palestinian peacemaker Aziz Abu Sarah and Israeli peacemaker Maoz Inon discuss the immeasurable tragedies they've experienced growing up in the region — and how they choose reconciliation over revenge, again and again. With a fierce belief in a better future, they talk about conflict, safety, finding shared values and how they're building a coalition of Israeli and Palestinian citizens who are intent on creating a path to hope and peace.

It might sound like the plot of a movie, but economic crime is all around us — from drug trafficking and fraud to cybercrimes, tax evasion and more. Economic crime fighter Hanjo Seibert breaks down the complexities of money laundering and how we can all wield our collective power to dismantle the underworld economy and turn off the money tap for criminals.

When filmmaker Desiree Akhavan told her Iranian immigrant parents she was in love with a woman, she knew they would object. She explains why it's worth the risk to let people get to know the real you.

Can cannabis actually treat insomnia? It's complicated, says sleep physiologist Jen Walsh. While the plant has been used across time and cultures, there's been little scientific research on how it impacts sleep disorders like insomnia. That's precisely where she and her team come in. Learn about the world's first study into the potential of medicinal cannabis as a safe, accessible treatment to help us all rest easy.

In a part of the United States with more than 17,000 years of human history, cultural preservation advocate Tracie Revis is working to turn the Ocmulgee Mounds into Georgia's first national park and preserve. This park would be co-managed by the Muscogee (Creek) Nation, bringing the tribal voice back to an area they were forcibly removed from 200 years ago. Revis explores the complex feelings of caring for this land and shows how it's fostering healing in return.

TED is on a mission to discover and champion the ideas that will shape tomorrow. Reflecting on the evolution of that mission, TED's Chris Anderson and Monique Ruff-Bell cast a visionary gaze on the organization's future — including a revamped tagline, a renewed emphasis on debate and the launch of an exciting new conference — and explore the indispensable role of ideas in navigating societal challenges and fostering global innovation. Learn more about TED's enduring legacy, its path forward for the decades ahead and how you can join us in sparking a brighter future.