Re: I dunno, he kinda reminds me of... Bruce had already singled him out as having the most potential
But potential for what? I agree that Tim has exceptional talent and can be a great detective/superhero in his own right. But the first part of the line is Bruce explaining why Dick and Jason aren't Robin anymore.
There's only 2 possible endings for a Robin: to go grow up or to die. Dick didn't outgrew Robin because he was in it for thrills, he outgrew it because he grew up. And Jason died because death is a hazard of the job. For Bruce to suggest that it was an attitude problem that ended either boy's Robin career is pure magical thinking on his part. (Not to mention insulting to both boys, dismissing them as not taking seriously a job that they worked hard at and risked their lives for.)
So to work up from that to the idea that "this boy" wants to be the world's greatest detective and therefore...won't ever leave him? Won't ever grow up or die? Will be an extension of Bruce instead of his own person?
I just am always very oversensitive about that line because it's so often used as proof that Tim is the best Robin in some objective way, when to me it's one of the most screwed-up things Bruce has ever said, and the least connected to the actual reality of the Robins.
Though given that Tim is now having trouble dealing with things changing, it does once more show that Tim and Bruce are a lot alike.