> The Fermi paradox or Fermi's paradox, named after physicist

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> The Fermi paradox or Fermi's paradox, named after physicist Enrico Fermi, is the apparent contradiction between the lack of evidence and high probability estimates, e.g., those given by the Drake equation, for the existence of extraterrestrial civilizations.[1] The basic points of the argument, made by physicists Enrico Fermi (1901–1954) and Michael H. Hart (born 1932), are:

There are billions of stars in the galaxy that are similar to the Sun,[2][3] many of which are billions of years older than Earth.[4][5]
With high probability, some of these stars will have Earth-like planets,[6][7] and if the Earth is typical, some might develop intelligent life.
Some of these civilizations might develop interstellar travel, a step the Earth is investigating now.
Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in a few million years.[8]

> Kyubey is shown to not care about Earth being destroyed after Kriemhild Gretchen is born in one of the loops

> The reason why we haven't contacted other intelligent life yet is because Kyubey has expended them through the magical girl cycle

> Itzli comes from an alien civilization destroyed by being overwhelmed by witches.

> Kyubey has destroyed countless civilizations, hence the existence of the Fermi paradox - they can't talk to us, because they're all dead.