[9S thinks it surely would be lonesome. The creatures he had come across were, at best, capable of parroting speech. For a being with greater intelligence and potentially eons of life, that surely was insufficient. It seems like a yawning, lonely sort of existence]

He'll answer if you talk to him, but just one time. I don't know what makes that so, but...

[That, too, seems terribly isolating to a unit who has always craved companionship, for whom being alone was worse than being dead]

I observed a few others talking to him from a distance, and I got to thinking, maybe it's been a long time since someone last asked what he's called, or said his name.

[He knows how that is, too. Bob may be a giant ancient fish creature drifting through the void, but he's sentient, and he must have feelings too]

I hope he's not lonely either.