Met friends at the museum of science and caught the last possible showing of the Science of Pixar exhibition before it packs up and goes to Philadelphia (where it will no doubt be smashed to pieces and the bits used to pelt Santa Claus). Seeing young C get excited about placing stuff in a 3D computer generated environment (Mike's dorm room in Monsters U) was neat. There's something in watching a child get absorbed in thinking that fits in my heart like a key. Also charming: her amazement that I can multiply 12 x 44 in my head.