TED Talks to make you hopeful for 2024

More than 30 million people in the US are eligible to have their arrest and conviction records cleared -- but most people who qualify either can't afford it or simply don't know it's an option. In this gripping talk, second chance advocate and 2023 Audacious Project grantee Sheena Meade makes the case for "clean slate" laws that streamline this complicated process, increasing access to work, housing and education opportunities for millions of people. Learn how her team at the Clean Slate Initiative has already helped pass these laws in six US states and how they're now working to unlock record clearance for millions more, so everyone can get a true shot at becoming their best selves. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)

You don't need political power to make real change, says activist Katie Fahey. She tells the story of how she led a successful movement in Michigan to end gerrymandering — the practice of drawing district lines to favor one political party — and how it all started with a simple social media post.

When programmer Tiffani Ashley Bell learned that thousands of people in Detroit were facing water shutoffs because they couldn't afford to pay their bills, she decided to take action -- in the simplest, most obvious way possible. It's an inspiring story of how one person with tenacity and an idea can create monumental change -- and a demonstration that each of us can find our own way to help the world, even if it means starting without all the answers.

How do we defend people's freedom and dignity against authoritarianism, when the "law of war" doesn't seem to apply anymore? In the face of the Russian occupation of Ukraine, human rights lawyer and Nobel laureate Oleksandra Matviichuk considers this question every day. Exposing the failures of the international system of peace and security, she highlights the capabilities of ordinary people during extraordinary times — and urges us all to take an active position in the struggle for freedom. (This talk contains graphic imagery.)

Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares his far-out vision for launching flexible solar panels into space in order to collect sunlight, convert it to electrical power and then beam it down to Earth. Learn how this technology could power everything -- and light up our world from space.

With levity and profound insight, artist Maira Kalman reflects on life, death, dinner parties, not knowing the right answers, the joys of eating a hot dog from a street vendor and more. This talk, interwoven with her delightful paintings, is itself an artwork that seems to hold the entirety of life in all its absurd glory.

Why is good news so rare? In a special broadcast from the TED stage, journalist Angus Hervey sheds light on some of the incredible progress humanity has made across environmental protection, public health and more in the last year, making the case that if we want to change the story of humanity this century, we have to start changing the stories we tell ourselves. "When we only tell the stories of doom, we fail to see the stories of possibility," says Hervey.