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Iain Dale
Ray Dalio
Founder, President & CIO, Bridgewater Associates
Russ Daniels
CTO, HP’s Cloud Service Strategy
Anil Dash
Chief Evangelist, Six Apart
Richard Dawkins
Evolutionary Biologist
Aubrey de Grey
Chief Science Officer, SENS Foundation
Simon de Pury
Chairman, Phillips de Pury & Company
Anna Deavere Smith
Actress / Playwright
Elizabeth Debold
Senior Editor, EnlightenNext Magazine
Neil deGrasse Tyson
Director, Hayden Planetarium
Tom DeLay
Former U.S. Representative
Daniel Dennett
Professor of Philosophy, Tufts University
Neelam Deo
Diplomat; Former Consul General of India
Alan Dershowitz
Professor, Harvard Law School
Dr. Shelley Ann des Etages
Senior Principal Scientist, Pfizer
Dickson Despommier
Professor, Columbia University
Lisa Diamond
Associate Professor of Psychology and Gender Studies, University of Utah
Boonsri Dickinson
Assistant Editor, Discover Magazine
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