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What If Humanity Is Among The First Spacefaring Civilization
Season 8 Episode 32 | 15m 30s
| Video has closed captioning.
Half of the universe is filled with expansionist alien civilizations, and it’s only a matter of time before they’ll reach us. OK, that sounded a little sensationalist. But it’s also the conclusion of a recent astrophysics paper. Let’s see how they figure this, and whether we should take it seriously
