Thomas Pogge

Philosopher Thomas Pogge wants to ensure medications get to those who need it most. He has published on a wide range of subjects such as global justice and human rights.

Paul Lewis

The Guardian's Washington Correspondent. 'Best Twitter Feed', Online Media Awards. Formerly Special Projects Editor.

Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

David Burkus

Best-Selling Author & Organizational Psychologist

A Simple Way to Inspire Your Team | David Burkus | TED

Andrew Fitzgerald

At Twitter: working with journalists & news orgs; also with authors. Outside of Twitter: Novelist, journalist, pro-cat-ist.

Mitch Resnick

Mitchel Resnick is LEGO Papert Professor of Learning Research, Director of the Okawa Center, and Director of the Lifelong Kindergarten group at the MIT Media Lab.

John Searle

American philosopher, currently the Slusser Professor of Philosophy at the University of California, Berkeley. Noted for his contributions to the philosophy of language, philosophy of mind and social philosophy

Gary Wolf

Co-Founder, Quantified Self; Contributing Editor, WIRED

Eleanor Longden

Mental Health Advocate & Speaker; Postdoctoral Service User Research Manager at Psychosis Research Unit

Compassion for Voices: a tale of courage and hope

Neil Gershenfeld

Director of MIT’s Center for Bits & Atoms

Diana Reiss

A professor of psychology at Hunter College and in the graduate program of Biopsychology and Behavioral Neuroscience of the City University of New York.

Hugh Evans

Humanitarian; Founder & CEO of Global Poverty Project

Ashton Kutcher

Actor, Producer, Investor & Activist

Joe Palca

NPR Science Correspondent

Edward Tenner

Smithsonian Institution Distinguished Scholar & Author of "Why Things Bite Back" and "Our Own Devices"

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Harald Haas

Communications Technology Innovator & Chair of Mobile Communications at the University of Edinburgh

Adam Ostrow

Chief Digital Officer, TEGNA

Michael Nielsen

A physicist turned writer, Michael Nielsen believes online communication and collaboration tools are revolutionizing the way we make scientific discoveries.

Dr. Phil Plait

Blogger for Discover Magazine at Bad Astronomy, where he deconstructs misconceptions and explores the wonder of the Universe.

Elon Musk

Co-Founder & CEO of Tesla, SpaceX, Neuralink & The Boring Company

Shawn Rene Zimmerman

International Fitness Cover Model & Fitness Champion

Jeffrey Kluger

Journalist; Editor and Writer at TIME MAGAZINE. Author of 8 books, including APOLLO 13.

Vinton Cerf

Vice President & Chief Internet Evangelist for Google

Jimmy Wales

Founder of Wikipedia & Wikitribune

Rory Stewart

Foreign Affairs & Human Rights Expert

Jack Levin

Author, Sociologist & Researcher on Murder, Prejudice and Hate, Sociology of Aging, and Sociology of Conflict at Northeastern University in Boston

Marco Tempest

Cyber-Illusionist

Jesse Dylan

Founder/CEO of Wondros & Filmmaker

John Legend

EGOT Winning Musician, Producer & Philantropist