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?

Iron Woman

Congratulations to my sister Helen, who completed her first Iron Man yesterday at Lanzarote in the Canary Islands. She swam 3.8 km, cycled 180 km, and then ran a marathon (42.2 km) back to back. An awesome achievement – well done Helen!