Mariana Mazzucato helps policymakers understand how the global economy really works (and how we need to fix it).

Neal Katyal is the former Acting Solicitor General of the United States and is currently serving as a Special Prosecutor in the George Floyd murder cases.

Three-time Grammy-winning superstar Lizzo has become a household name, with more than four billion global streams and a Platinum debut album.

Stephen Palumbi studies the way humanity and ocean life interact and intertwine. His insights into our codependence offer ideas for protecting both the ocean and ourselves.

Ken Chenault invests in fast-growing companies that have the potential to become large, fundamental institutions.

Lucie Pinson works to turn off the tap of financing for fossil fuel expansion and negotiate with banks and insurers on coal, oil and gas exit policies.

Marah J. Hardt keeps one foot wet in the field while the other wanders the crossroads of science, storytelling and strategy.

Karen Armstrong -- winner of the 2008 TED Prize -- is a provocative, original thinker on the role of religion in the modern world.

In Elizabeth Pisani's latest book, she explores the "improbable nation" of Indonesia.

Author and entrepreneur Rob Reid writes speculative fiction for Random House.

Pushing his body through epic cold-water swims, Lewis Gordon Pugh wants to draw attention to our global climate. He's just back from swimming in a meltwater lake on the slopes of Mount Everest.

Geoffrey Canada has spent decades as head of the Harlem Children’s Zone, which supports kids from birth through college in order to break the cycle of poverty.

Immersing himself in alternate lifestyles and hilarious experiments (usually with himself as the guinea pig), writer A.J. Jacobs tests the limits of behavior, customs, culture -- and reports back on the wisdom and practical knowledge he's gained.

Halima Aden was the first ever hijab-wearing fashion model.

Tea Uglow leads part of Google's Creative Lab specializing in work with cultural organizations, artists, writers and producers on experiments using digital technology at the boundaries of traditional cultural practice.

Tomás Saraceno invites us to consider the impossible, like spiders that play music or cities in the sky.

Sethembile Msezane deconstructs the act of public commemoration -- how it creates myths, constructs histories, includes some and excludes others.

Elizabeth White is an author and aging solutions advocate for older adults facing uncertain work and financial insecurity.

Chip Colwell is an archaeologist who tries to answer the tangled question: Who owns the past?

The director of the award-winning documentary The War Tapes, Deborah Scranton is committed to using new technology to give people power to tell their own stories.

Cady Coleman draws from her time at NASA and her missions on the International Space Station to share insights about team building, leadership and innovation.

Filmmaker + historian

Priyanka Chopra Jonas is a multifaceted talent and one of the most recognized personalities in the world.

An active philanthropist, Chris Hemsworth is passionate about ocean conservation and finding solutions to climate change.

Pat Mitchell is a lifelong advocate for women and girls.

William A. "Sandy" Darity Jr. is the Samuel DuBois Cook Professor of Public Policy, African and African American Studies and Economics and the director of the Samuel DuBois Cook Center on Social Equity at Duke University.

Ronald Sullivan is a leading theorist in the areas of criminal law, criminal procedure, trial practice and techniques, legal ethics and race theory.

Dr. Laura Robinson's scientific mission is to document and understand the processes that govern climate.

With astronaut eyes and ethnographer curiosity, Tricia Wang helps corporations grow by discovering the unknown about their customers.

Bono, the lead singer of U2, uses his celebrity to fight for social justice worldwide: to end hunger, poverty and disease, especially in Africa. His nonprofit ONE raises awareness via media, policy and calls to action.