Scott Aaronson

David J. Bruton Centennial Professor of Computer Science, University of Texas at Austin; Author, Quantum Computing Since Democritus

Anthony Aguirre

Professor of Physics, University of California, Santa Cruz; Author, Cosmological Koans

Izumi Aizu

Executive Director, Institute for HyperNetwork Society; Senior Research Fellow & Professor, Institute for InfoSocinomics, Tama University, Japan

Alan Alda

Actor; Writer; Director; Host, PBS program Brains on Trial; Author, Things I Overheard While Talking to Myself

Paul Allen

Co-Founder, Microsoft; Founder & CEO, Vulcan, Inc.; Owner, Seattle Seahawks; Co-Founder, Allen Institute for Brain Science

Stewart Alsop

Partner, Alsop Louie Partners, Contributing editor to InfoWorld

Adam Alter

Psychologist; Assistant Professor of Marketing, Stern School of Business, NYU; Author, Irresistible

Ivan Amato

Freelance print and radio Writer; Editor of the Pathways of Discovery essay series for Science Magazine

Dorsa Amir

Postdoctoral Research Fellow, Boston College

David J. Anderson

Neurobiologist, California Institute of Technology; Author, The Nature of the Beast

Alun Anderson

Senior Consultant (and former Editor-in-Chief and Publishing Director), New Scientist; Author, After the Ice

Ross Anderson

Professor of Security Engineering at Cambridge University

Natalie Angier

Pulitzer prize winning science writer for The New York Times

Coren Apicella

Assistant Professor of Psychology, University of Pennsylvania

Samuel Arbesman

Complexity Scientist; Scientist in Residence at Lux Capital; Author, Overcomplicated

Dan Ariely

James B. Duke ProfessorProfessor of Psychology and Behavioral Economics, Duke University; Founding Member, Center for Advanced Hindsight; Author, Predictably Irrational

Noga Arikha

Associate Fellow, Warburg Insitute (London); Research Associate, Institut Jean Nicod of the Ecole Normale Supérieure (Paris); Author, The Ceiling Outside

W. Brian Arthur

External Professor, Santa Fe Institute; Visiting Researcher, Intelligent Systems Lab, PARC; Inaugural Recipient, Lagrange Prize; Author, The Nature of Technology

Peter Atkins

Emeritus Professor of Chemistry, University of Oxford; Author, What is Chemistry?

Scott Atran

Anthropologist; Emeritus Research Director, Centre National de la Recherche Scientifique, Institut Jean Nicod, Paris; Co-Founder, Centre for the Resolution of Intractable Conflict, University of Oxford; Author, Talking to the Enemy

Robert Axelrod

Walgreen Professor for the Study of Human Understanding, University of Michigan; Author, The Evolution of Cooperation