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Stephen Hawking
Himself

Buzz Aldrin
Himself

Ray Kurzweil
Himself

Michio Kaku
Himself

Martin Rees
Himself

Ashton Kutcher
Himself

will.i.am
Himself

Shimon Peres
Himself

Peter Diamandis
Himself

Dean Kamen
Himself

J. Craig Venter
Himself