What exactly is Blish's status now?
He said, he'd turn some functions off and use his Golem as power source for the tracking device. But what exactly are the higher functions he has deactivated? Was it just the "body", as in the previous episode, or also his "brain"?
The latter would mean that he is definitely gone.
But if only the body is powered off, we could theoretically - though highly unlikely - recover him. Even if he'd probably become insane by then. Another possibility would be, that his mind is active within Kralk somehow.
IIRC he explicitly alluded to his Amnoon experience, so I think just the outer shell is powered off. But why don't his friends see any hope, then?