[Eyeroll. That one time he was older, he didn't go to medbay first.]
No, that was the other me. There's two of us. I'm eighteen - haven't done half the stuff he has yet, and he doesn't remember a year of my life.
[Shrug.] Alternate universes, a screwed up Ingress, time compression, pick your excuse.
Other options:
no subject
[Eyeroll. That one time he was older, he didn't go to medbay first.]
No, that was the other me. There's two of us. I'm eighteen - haven't done half the stuff he has yet, and he doesn't remember a year of my life.
[Shrug.] Alternate universes, a screwed up Ingress, time compression, pick your excuse.