Look, I'm from a totally different world. We don't even have krogans and turians where I'm from. Look, until a year ago, I was just a normal kid, until suddenly you find out aliens are real and they're already invading. I don't understand how most of this stuff works any better than you do.

[ That's probably not true, but hey, ask Rachel to explain Z-space or how morphing works and see what kind of answer you get. ]