Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

Paul Snelgrove

Paul Snelgrove led the group that pulled together the findings of the Census of Marine Life -- synthesizing 10 years and 540 expeditions into a book of wonders.

Neil MacGregor

The writer and presenter of the BBC Radio 4 series "A History of the World in 100 Objects" and the accompanying book.

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Bunker Roy

Founder of Barefoot College

Charles Hazlewood

Award-winning conductor and musical revolutionary; Speaker, and Artistic Director of Paraorchestra

Harald Haas

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

Geoffrey West

Theoretical Physicist, Distinguished Professor & Past President of Santa Fe Institute

Mike Biddle

Co-founder, MBA Polymers

Svante Paabo

Max Planck Institute Director, Department of Genetics

Daniel Wolpert

A neuroscientist and engineer, Daniel Wolpert studies how the brain controls the body.

Elizabeth Murchison

Elizabeth Murchison studies a mysterious (and contagious) cancer that threatens to wipe out Tasmanian devils.

Jeremy Gilley

Actor, Filmmaker & Founder of the Peace One Day Non-Profit

Peter Fankhauser

Peter Fankhauser is the leader of a team of students working on Rezero, a robot that balances on a single sphere.

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.

Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

Robin Ince

The rational-minded Robin Ince conducts live experiments in comedy.

Adam Ostrow

Chief Digital Officer, TEGNA

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Jarreth Merz

Jarreth Merz\' new film, \"An African Election,\" follows the 2008 presidential elections in Ghana from start to finish.

Marco Tempest

Cyber-Illusionist

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Misha Glenny

Award-Winning Journalist, Author; Expert on Cybersecurity, Global Organized Crime & Geopolitics

Misha Glenny Speaker Showreel

Sonaar Luthra

Sonaar Luthra is the creator of Water Canary, a water-testing device that collects real-time water-quality data from the field.

Allan Jones

As CEO of the Allen Institute for Brain Science, Allan Jones leads an ambitious project to build an open, online, interactive atlas of the human brain.

Danielle de Niese

Her voice described as a sweet gleaming soprano, Danielle de Niese breathes new life into opera, astonishing critics and making audiences sit up and listen.

Cynthia Kenyon

Molecular Biologist & Biogerontologist; Vice President of Aging Research at Calico

Josette Sheeran

President and CEO of the Asia Society; Former Vice Chairman of the World Economic Forum.

Pamela Meyer

Founder & CEO of Calibrate; Author of "Liespotting;" TED Speaker