CNN Political Contributor; Author; Human Rights, Education & Clean Energy Advocate

Chairman of Kurzweil Technologies; Inventor; Futurist

Host, Democracy Now!

Former Governor of New Mexico; Former U.S. Energy Secretary

Biomedical Gerontologist; Chief Science Officer of SENS Research Foundation; Researcher on Preventing Aging

World-Renowned Futurist & Theoretical Physicist

Adventurer, Environmental Activist, Award-Winning Photographer, Author, Lecturer & Founder of the Sedna Foundation

Magician; Runner up on NBC's 2013 Celebrity Apprentice

Provocative Public Intellectual & Groundbreaking Author

Activist; Storyteller from Sierra Leone; Author, "A Long Way Gone"

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

EGOT Winning Musician, Producer & Philantropist

Nobel Peace Prize Laureate & Founder of Grameen Bank; Known for His Work to Eliminate World Poverty

Executive Educator & Coach; Best-Selling Author of "What Got You Here Won’t Get You There"

Feminist Scholar & Author of "Beyond Respectability: The Intellectual Thought of Race Women"

Renowned Women's Rights Attorney; Subject of Netflix Documentary "Seeing Allred"

Nationally Known Journalist, Author & Screenwriter; Political Thought Leader

Best-Selling Author & Positive Psychology Expert

Award-Winning Writer, Activist & Academic

President of the Manhattan Group for Policy Research; Former Executive Editor of National Review