Comment Re:Ummm, I don't get it. (Score 0) 566
Or another way to think of it is this:
Suppose you had the 3 doors as before and you picked one of them. Instead of opening a door to show you a goat Monty says 'would you like to swap your door for the other two?' If the car is behind either of the other two you get it.
Of course in this situation it is obvious that you choose to take the other two doors as your chances of getting the car go from 1/3 to 2/3. So what is different between this game and the one where Monty actually opens one of the alternative doors and shows you the goat? Nothing. You already knew that one of the other two doors had to contain a goat. Opening the door with the goat is effectively the same as offering you the other two doors and telling you which one it is not.
Suppose you had the 3 doors as before and you picked one of them. Instead of opening a door to show you a goat Monty says 'would you like to swap your door for the other two?' If the car is behind either of the other two you get it.
Of course in this situation it is obvious that you choose to take the other two doors as your chances of getting the car go from 1/3 to 2/3. So what is different between this game and the one where Monty actually opens one of the alternative doors and shows you the goat? Nothing. You already knew that one of the other two doors had to contain a goat. Opening the door with the goat is effectively the same as offering you the other two doors and telling you which one it is not.