Basically, yes. I've tried screaming into space. It gets you nowhere.

[He stifles a yawn.]

The other ships are full of people who've been kidnapped. The slightly larger one, that is the Iskaulit. It is empty so we've taken the liberty of using it for extra space. There is a library and a garden, among other things.

The hosts are far enough away that they have to deal with communications interference at times. I've no doubt if they were within easy reach, they would be dead many times over.