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Anthony Bourdain

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Neil deGrasse Tyson

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Anna Deavere Smith

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Christiane Amanpour

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George R.R. Martin

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Matt Kirshen

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Chuck Nice

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Jeff Goldblum

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James Marsden

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Dan Rather

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Al Gore

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Jack Black

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Maysoon Zayid

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Darren Aronofsky

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"Weird Al" Yankovic

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Laura Grego

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Paula Poundstone

Self

George Takei

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Eugene Mirman

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Patricia Cornwell

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Bill Nye

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Charles Liu

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Azmat Khan

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Andrew Newberg

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Christopher Nolan

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Emily Calandrelli

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Judith Matloff

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Dan Savage

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Heather Berlin

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Arianna Huffington

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Richard Dawkins

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Chris Hadfield

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Biz Stone

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Charles Bolden

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Norman Lear

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Bill Clinton

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Larry Wilmore

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Seth MacFarlane

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Penn Jillette

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Teller

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Susan Sarandon

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David Byrne

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Bas Lansdorp

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David Crosby

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Professor Brian Cox