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Tim Urban · Wait But Why · 2014

The Fermi Paradox

The Fermi Paradox: There should be 100,000 intelligent alien civilizations in our galaxy — so why haven't we found any of them?

Why we picked it

The clash between abundant probable civilizations and an apparently silent galaxy makes a vast scientific puzzle immediately graspable.

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Link last checked 2026-07-15. Stumble Reads publishes recommendations and short commentary; the original work belongs to its author and publisher.