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Neil deGrasse Tyson on how rich Bill Gates really is

Neil deGrasse Tyson on how rich Bill Gates really is

(3:26) Neil deGrasse Tyson helps you visualise how big Carl Sagan's favourite number, a billion, really is. From a lecture at the University of Washington in 2011.

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Guest: guest40 (2805 days ago)
Latest comment:

This guy uses the word "I" and incredible amount. He's so into himself that for me it undoes the good work he does in the promotion of science.

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Latest comment:

This guy uses the word "I" and incredible amount. He's so into himself that for me it undoes the good work he does in the promotion of science.

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