President and CEO, Aspen Institute

US Senator (R), Ohio

Co-Founder, Audrie Pott Foundation

Principal, Garnaut Global

CEO, ClearPath and ClearPath Action

Vice Chair, President and Global Head of Client Services, BDT and MSD Partners

Administrator, U.S. Agency for International Development

Critic and Correspondent, NPR Music

Contributor, Fox News; Columnist, USA Today; Author

Former Director, DARPA, US Department of Defense; 2017-'18 Fellow, Center for Advanced Study in the Behavioral Sciences, Stanford University

Executive Technical Advisor and CEO, Toyota Research Institute, Toyota Motor Corporation (Festival Underwriter)

Developmental Psychologist; Assistant Clinical Professor, Icahn School of Medicine; Co-Founder and Director, The Mount Sinai Parenting Center

Executive Editor, CNN Politics

Health Journalist; Author, "The Power of Fun: How to Feel Alive Again" and "How to Break Up With Your Phone"

Fire Ecologist; Research Scientist, University of Washington School of Environmental and Forest Sciences

Chief Science Officer, American Psychological Association; John Van Seters Distinguished Professor of Psychology and Neuroscience, University of North Carolina at Chapel Hill