In his sci-fi trilogy The Three Body Problem, author Liu Cixin presents the dark forest theory of the universe.
When we look out into space, the theory goes, we’re struck by its silence. It seems like we’re the only ones here. After all, if other forms of life existed, wouldn’t they show themselves? Since they haven’t, we assume there’s no one else out there.
Liu invites us to think about this a different way.
Imagine a dark forest at night. It’s deathly quiet. Nothing moves. Nothing stirs. This could lead one to assume that the forest is devoid of life…