[It's a thought he's had on his own, but also one he's kept to himself. He already knows what Tadashi would say if he suggested messing with his own code. Instead, he huffs a little at the thought.]

He actually confirmed it? I was starting to think everybody was crazy. [Multiple people told him he'd been here before. He hadn't realized Tadashi had been here before, too.] So if that's true, that means we were corrupted and something was fixed to bring us back out of the Nexus. If we can get back out, why can't we go in?