Fermi Paradox: The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high a priori likelihood of its existence. (Wikipedia)

The name of Fecto Elfilis' big meteor attack: The Fermi Paradox's Answer. (Wikirby)

In other word: Fecto Elfilis is the reason why we haven't encountered extraterrestrial life.