Re: I strongly disagree with Lee's answer

From: Eliezer S. Yudkowsky (
Date: Fri May 11 2001 - 22:33:12 MDT

"Emlyn (onetel)" wrote:
> Eliezer wrote:
> > For example, suppose that you're on a game show called "ExtroQuiz" and
> > there are three doors: A, B, and C. One door has a prize behind it. You
> > pick door C. The game show host opens up door A, and shows you that it's
> > empty. What is the probability that the prize is behind door B? Answer:
> > 0%. Why? Because the game show host *knows* the standard answer to this
> > riddle, *knows* that most Extropians will switch to B, and he opens A *if
> > and only if* the prize is actually behind C.
> On ExtroQuiz, if you pick door C, and the prize is behind door B, apparently
> the gameshow host does not open door A and show that it is empty. What,
> then, does the host do instead?

Nothing - just says "Is that your final answer?" in portentous tones, with
no accompanying demonstration or additional information. He doesn't
*want* you to change your choice.

-- -- -- -- --
Eliezer S. Yudkowsky
Research Fellow, Singularity Institute for Artificial Intelligence

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