Despite the bio-toxin, Tim is able to note the deliberate care and the way Bruce's hands move as if used to exerting a gentle touch - which registers as odd, even if he can't put as much thought into that as he usually would. The ringleader of that little group had wanted him sensate but helpless, able to feel things - if he'd been as dosed up as the girl, they wouldn't be having this conversation, for a start. He gets the feeling that Bruce might have preferred that.

But since they're talking, he's putting as much concentration into it as possible, the effort unusually visible.

"So this isn't your first visit to another world." Since he knows about them, enough to know that they don't exist for him. And that's... a cold, stark thought as it percolates through his head. A Batman without Robin is nothing but grim darkness, controlled violence teetering on a spiral of self-destruction without another presence to alleviate that darkness - without someone else to focus on protecting at his side, and therefore to focus on protecting himself for their sake.

He has a feeling this Bruce might not see it that way.

"I guess it's difficult knowledge to deal with." On both ends.