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You've Heard All About Trickle-Down Theories, But Have You Heard Bill Nye's Trickle-Up Theory?

Listen to Bill Nye’s theory on why space exploration is a trickle-up investment and just try not to get a little teary-eyed there along with him at the end.

Read more: http://upworthy.com/youve-heard-all-about-trickle-down-theories-but-have-you-heard-bill-nyes-trickle

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