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David Brin - Could Our Universe Be a Fake?

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The Fermi Paradox: A Song

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TEDxBrussels - David Brin - Target 2061: Reinventing Civilization Across Half a Century

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David Brin - Where are All Those Aliens?

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The Fermi Paradox Has An Incredibly Simple Solution

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This Elderly Man Made Sadhguru Cry on Stage!

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A Time-Lapse Map of Every Nuclear Explosion Since 1945 - by Isao Hashimoto