dynamic elf

Me: *only half-listening to a story about school*
N: ....but maybe I imagined that.
Me: Oh yeah?
N: Hey! Actually, maybe I'm imagining this!
Me: This right now?
N: Yeah! Maybe I'm in bed asleep, imagining me here! Maybe I'm ...a different me, thinking!
Me: ..............maybe! I don't know!
N: Why not? Am I a different me?
Me: Probably not! But maybe!
N: Why?
Me: Um. Because uh... reality is subjective. All we really know is the stuff we see and think about, but we also see and think about dreams, so it can be hard to tell. It's an interesting question.
N: What's reality?

I HAVE NO IDEA ANYMORE.