Notes on the book "The Curious Incident of the dog in the night-time" from Mark Haddon. The universe is expanding. The further the stars are away from us, the faster they are moving, some of them nearly as fast as the speed of light, which is why their light never reached us. Three doors, behind which one contains a price. You point at one. The game host opens one of the other two where the price is not. Should you stick to your first guess or aim for the third door? You should switch your choice, since your chances of wining then are of 2/3. Sherlock Holmes: in the original stories Holmes never wore a deerstalker (hat). It was invented by the illustrator of the book Sidney Paget. Also, he never said "elementary my dear Watson", this was added on the films and TV. Entia non sunt multiplicanda preter necessitatem: No more things should be presumed to exist than are absolutely necessary. Turing test: The Turing test, developed by Alan Turing in 1950, is a test of a machine's ability to exhibit intelligent behavior equivalent to, or indistinguishable from, that of a human. Turing proposed that a human evaluator would judge natural language conversations between a human and a machine designed to generate human-like responses. Finding somethings on a map: move in a spiral, walking clockwise and taking every right turn until you come to a road you've already waled on, then taking the next left, and then starting again with right turns. Conway's Soldiers. An infinite check board with game pieces on the bottom half of it. You can jump a piece and then remove it. The result from Conway is that you can maximum reach the fourth columns up the middle line. Red herring: something to get you confused (brouiller les pistes)