I never said it. Honest. Oh, I said there are maybe 100 billion galaxies and 10 billion trillion stars. It's hard to talk about the Cosmos without using big numbers. I said billion many times on the Cosmos television series, which was seen by a great many people. But I never said billions and billions. For one thing, it's too imprecise. How many billions are billions and billions? A few billion? Twenty billion? A hundred billion? Billions and billions is pretty vague. When we reconfigured and updated the series, I checked-and sure enough, I never said it. ✨ Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium. Book by Carl Sagan, 1997.

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