[He listens, though at the end he's quick to answer:]

I know.

Even if you had been exactly the same as you were before when you got amnesia, between that and the events of the ship, you're not the son they remember. Chances are, you never will be, either.

That one, I can relate to, a little. My parents don't know, and I'm sure they wouldn't get it even if I tried to explain it to them. But even I've changed far less than you.