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Why Earth’s History Appears So Miraculous

Our forecasts about the future could be blinded by our necessarily lucky past. Not only is it impossible to look back and find truly world-ending impact craters in our planet’s history — stranger still, it would be impossible to find these impacts in the rock record even if they struck planets like ours all the time. Existential hazards, even if they’re extremely likely, might hover just out of frame, concealed by our “anthropic shadow.”

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