I Know Why The Aliens Don't Land!

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Where are all the aliens? One night 60 years ago, Enrico Fermi, a physicist, looked up at the sky and exclaimed: "Where is everyone?" meaning the extraterrestrial life. In his opinion, the galaxy was literally to be filled with all sorts of life! Today, scientists only know that there are billions of planets in the Universe that can support life. Why haven't we met anyone yet?
Maybe the Universe is too big to be easily overcome!? Maybe the aliens are deliberately ignoring us?! Maybe any blooming civilization is doomed to self-destruction (as we, for example, if we do not stop doing nonsense).
In today's video we in Smart Banana will study several versions by which scientists tried to justify the paradox of Fermi! ☺

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