Heiji smiled. "Oh, I dunno. I think string theory'd add gravity to your thesis."

...Think about it.

"Anyway, I'm kind of envious. Sounds like you were a pretty lucky guy. Wish I could remember more about what I did when I was on the outside. Or maybe that kinda thing is what I did with my time." It was still weird that he didn't really remember that much about his family, though.