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How many alien civilisations exist in our galaxy? (science video)

December 24, 2020 | By | 1 Reply More

Let’s take deep dive into the Drake equation, otherwise known as the probabilistic formula used to estimate the number of active, communicative extraterrestrial civilizations in our Milky Way galaxy.

Luckily, our man with a brain the size of a planet, Lex Fridman, is on hand to run us through the equation and his take on the high, low, and likely level for this estimate given our current science.

How many alien civilisations exist in our galaxy? (science video)

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Category: Science

About the Author ()

Colonel Frog is a long time science fiction and fantasy fan. He loves reading novels in the field, and he also enjoys watching movies (as well as reading lots of other genre books).

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  1. mspence says:

    If they are at or below our level of technology, then there could be several, but unable to communicate. There may only be a few spacefarers out there, and they probably have First Contact rules for barbarians like us (seriously, would you have come here in 2020?)

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