Sulu shook his head. "No apology necessary. Time travel is one of those things that... Well, it can mess with your head." He chewed on his lip briefly, distracted between watching the Hoix and contemplating just how messy time travel really was.

"I'm not sure what just knowing about it could do to someone, but personal experience dictates that nothing good really ever comes from it. Unless you don't try to change anything. Even then, it's messy. But it's probably better not knowing." He grinned at Ianto, "After all, it's no fun if you already know what's going to happen, right?"