1. A sci-fi ideology where humanity is viewed as the dominant or rightful species in a universe shared with aliens. Common in
space operas, military sci-fi, and dystopian future settings.
2. Outside of fiction (theoretically), a stance that if intelligent extraterrestrial life were ever discovered, the preservation, survival, and continuity of humanity should take absolute priority over alien life — especially in situations of conflict, coexistence, or limited resources.
Where it’s mainly used:
Mostly in science fiction (
books, games, movies, fandom discussions), especially in stories involving alien invasions, galactic
politics, or interstellar war. Outside fiction, it appears in speculative debates about first contact scenarios.
Key distinction:
Not about
Earth animals or
real-world racial supremacy — it’s a humanity-first mindset in the context of extraterrestrial life. The
core idea is preservation of the human species above all non-human intelligent life.