Or, my kid is awesome

Me: Nanobyte, do you remember where I put the light bulbs?
Nanobyte: No, I don't.
Me: Why not? Don't I keep you around to remember things for me?
Nanobyte: No, mommy, that's not my purpose.
Me: No? What is your purpose?
Nanobyte: I don't know yet. I haven't found out. But I have one. And it's bigger than that.