Elon Musk: “The Earth only receives roughly 1.2 billionth of the Sun's…”

“Then it becomes obvious that space is overwhelmingly what matters. Overwhelmingly. The sun only receives roughly 1.2 billionth of The Earth only receives roughly 1.2 billionth of the Sun's energy. So if you want to have something that is, say, a million times more energy than Earth could possibly produce, you must go into space.” (20:52–21:01)

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