Conversation with my five-year-old son

Him: Daddy. My brain knows the answer to every question!

Me: (Thinks) Ok. Is it possible to factor any number in linear time?

Him: (Without stopping to think) Yes!

Me: How?

Him: … I don’t know…

Me: Ah. Well… Which painting is better – the Raft of the Medusa or the Mona Lisa?

Him: The Daft of the Haducer?

Andy