Prisoner dilemma
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Prisoner dilemma
Prisoner dilemma
08-02-2013 11:17 AM
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You are allowed to ask ONE question to identify the door which leads to freedom. You may put your question to either of the guards, bearing in mind that you don't know which one will tell the truth.
Forum Moderator and Customer
Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain
He who feared he would not succeed sat still
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 11:59 AM
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"Could the guard with the door to freedom please open the door?"
Either that or "Can I have a Big Mac and Fries please?" lol
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 12:22 PM
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Then pick the opposite door
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 12:40 PM
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When faced with two choices, simply toss a coin. It works not because it settles the question for you. But because in that brief moment while the coin is in the air. You suddenly know what you are hoping for.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 12:44 PM
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Quote from: picbits "Which door would the other guard say led to certain death ?"
Then pick the opposite door
I think you are on the right lines but surely you would have to ask both guards a question


Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 12:51 PM
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If you asked the guard who always told the truth, you'd get a correct answer - the other guard would lie about which door led to certain death so you'd pick the opposite door.
If you asked the guard who never told the truth, he'd lie about the answer the truthful guard would give hence needing to choose the opposite door again.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 12:54 PM
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Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 1:02 PM
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Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 2:51 PM
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Customer and Forum Moderator.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 3:18 PM
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Quote from: picbits You don't need to ....
Yes you do. If you don't know which guard lies then how do you know to pick the opposite door? Likewise if you don't know which guard tells the truth.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 3:28 PM
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You would pick one of the two guards at random, ask them which door the other guard would say would lead to certain death then pick the door that wasn't mentioned.
door a = death
door b = life
truthful guard would say lying guard would say door b
lying guard would say the truthful guard would say b
so pick the door mentioned and you'd be safe.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 3:46 PM
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Ultimately, which door to pick depends on the question asked:
If you ask which door the other guard would say leads to certain death, you pick the door he say.
If you ask which door the other guard would say leads to safety, you pick the other door.
You're effectively getting both guards answer with a single question, and as the true answer is negated by the lie (true & false == false), your guaranteed the answer is always a lie.
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 5:22 PM
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Through the first door he sees himself being waited upon by a Marilyn Monroe.
He rather like that place, but as he has a choice he chooses to have a peek through the second door he sees himself being waited upon by the same Marilyn Monroe.
He asked why it was the same scene, how can it represents heaven and the “the other place”.
The first door shows the scene of Karl Marx being rewarded.
The second door shows Marilyn Monroe being punished.
(change names to suit audience)
Mind you might have been Groucho! not Karl!
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 5:42 PM
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Okay, this time imagine you're on a game show, and the host gives you the choice of three doors: behind one door is a car, behind the other two are goats. You pick a door, but the host, who knows what's behind the doors, decides to mess with your mind. He opens one of the other doors, deliberately revealing a goat. He then asks you if you want to stick with your choice or switch. Which do you do, stick, switch, or doesn't it matter?
Answer
Re: Prisoner dilemma
Re: Prisoner dilemma
08-02-2013 7:25 PM
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