I've known summoned who claim to have left and come back. While home, they didn't remember anything of their time here.

[He doesn't know if that applies to physical changes. Tony came back altered from his experience, and Viktor believes that to be the key.]

Regardless, I don't like the idea that I'm at the mercy of random cosmic forces. [Which is what he considers the Singularity to be.] If I am to stay here, it will be my choice.