The question game with Jack

Jack just came in and sat on my lap and began asking questions...

J: "Are aliens real?"

Me: "No."

J: "Are martians real?"

Me: "No."

J: "Are robot dogs real?"

Me: "Ummm.... I don't think so."

J: "Are buttons to destroy the world real?" (What TV shows is he watching?)

Me: "No. Definitely not."

J: "Whose father will I be?"

Me: "Your child's."

J: "Whose grandfather will I be?"

Me: "When your child has a child, you'll be their grandfather."

J: "Oh, so I'll be a grandfather when my child has a child?"

Me: "That's right."

I guess that satisfied him because then he jumped down and ran off.