There's an argument to be made there for expectations influencing reality. [A thoughtful crease forms between his eyebrows.] Even if you had people there who weren't from Earth, [and, oh, he says that more casually than someone who's just arrived has any right to] they'd still pick up on the idea from those who were familiar with it, or else just- go with what was already in place. It feeds on memories, and that reinforces the fiction holding things together.

[What? Figuring things out is what he does.]