
You're planning to write to me about the Monty Hall Problem, aren't you. That's why you've clicked onto this page. I can see it in your mad, swivelling eyes. Well, don't. Please. I get many letters explaining, at great length, why I've got it wrong . I've finally given up answering them. Life is just too short. The Monty Hall Problem is famous precisely because the correct answer is so infuriatingly counterintuitive. The irony is that if you play the game (all you need is three squares on a piece of paper, a pencilled cross and a dice) it becomes rapidly obvious that the 'change' tactic increases your probability of finding a car. But there are many very intelligent people who believe that thinking about something is superior to doing it...

