There are 49 choices, 54 votes for ennoia's debate

Solve this paradox...

Here is a 2000 year old paradox, to which no one, as of yet, as provided a logically acceptable solution. Imagine this:

A traveller was walking one day when he met an old man sitting beside the road smoking a pipe. 'The first thing said to you by the first person you meet today will not be true,' said the old man. 'Trust me - don't believe what he says!' 'OK,' said the traveller. 'But hang on a minute: you're the first person I've met today.' 'Exactly!' said the old man.

Do you smell a fault?

Surely, if If the old man speaks the truth, then the first thing he says is not true. But if the first thing he says is not true, then the first thing he says is true. Concluding that what he says is both true and untrue! But surely reasoning, our most lucid tool as philosophers, cannot and does not allow for this!

So what's going on?

(Well, if you're not sure, you're not alone. This one actually killed off Philetas of Cos, who couldn't figure it out either, claiming;

"O Stranger: Philetas of Cos am I, 'Twas the Liar who made me die, And the bad nights caused thereby.")

Happy philosophizing...


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  • The Guy was crazy

    I believe the old man was simply on drugs

    16%  Voted for by footballfan385, Throwing The Rocks, LordBails, imaghost, Untouchable 888. (9 total)
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  • Double negative cancellation

    The first thing said to the traveller was "'The first thing said to you by the first person you meet today will not be true,' said the old man. Since this was the first statement this statement was obviously false. when followed by 'Trust me - don't believe what he says!' He is advising the traveller to disregard his previous statement which admitted itself to be false. Thereby telling the truth in his second statement. When the traveller pointed out that he was the first person he had met that day, the old man acknowledged that the traveller had figured it out. It is a classic case of double negative cancellation

    14%  Voted for by Royal Blue Cuteness, Stumbled Into God, Lou Montagne, lordmonkey, MindsAbyss. (8 total)
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  • Crazy old pranksters....

    Well, since the old man is obviously a mortal and therfore imperfect, he cannot say with any certainty that the first man the traveller meets will lie.

    The only way for the old man to know this , is for he himself to lie to the traveller. The old man says the first he will meet will lie, therefore he is simply screwing with the traveller, and causing general chaos.

    Who says a contradiction is a wrong answer anyhow?

    14%  Voted for by GreensBabe, Launcelot, christopheshea, destinygetsnervous, IszyVa. (8 total)
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  • Silllyness

    that's silly, it is obviously a statement which cannot be true, that's all there is to it. and no, our philosopers tools of reason should not allow allow for this. our tools of reason should let us see that that which the old mans states as fact is in fact an impossibility, nothing more or less. simple.

    7%  Voted for by Bob the Elder, Lingua of Clementia, ExpensiveThinker, Khoka.
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  • so?

    Simple, the travler lied.

    5%  Voted for by Flash-T, Lstjed, RuthArabellaTrasher.
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  • Uncertainty

    Let statement A be: "this statement is false." (or "this is a lie" or "right now i'm lying to you") Is statement A true or false? We simply can't tell, and we have to live with that. The notion of truth is insufficient.

    5%  Voted for by SoCiAlLy--ExCePtEd, razvan784, ExpensiveThinker.
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  • there is no truth or untruth

    Perhaps it is neither true nor untrue because neither truth nor untruth truely exist. Much as everything is not neither real nor unreal. These are concepts created by human minds to make it easier to control people. But when you look at it by definition, everything is both a lie and a truth, and therefore they cancel eachother out, or at least that is how I see it right now. Neither really exist, so the man was neither lying nor telling the truth, he just was, and what he said just was as well. -Emily

    5%  Voted for by knaveofhearts, EmilyAr, 5th position Gb.
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  • he's telling the truth either way...

    But the old man never knew that he was the first person the traveller had came across so he's telling the truth as he might have been warning him about something which he thought another person had told him. Though since he was the first person the traveller came across then he was telling the truth as he was stating that he was lying as he was the first person to speak to him.

    3%  Voted for by Stumbled Into God, fruity loop.
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  • Lie or Truth?

    It is neither a lie nor a truth. It is neutral.

    3%  Voted for by star-filled-sky, The Blind Bandit.
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  • Corollary

    If a tree falls in a forest and only Al Gore is there to hear it, will he lie to the first person he tells about it?

    3%  Voted for by EarthToJim, RuthArabellaTrasher.
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  • I am telling you a lie

    if one says "I am telling you a lie", one commits a logical absurdity! if the statement is true, it is not a lie, therefore the teller is not lying if the statement is a lie, then the teller is telling the truth when he says he is lying, which means he is NOT lying

    Voted for by NeferMaatNetjer.
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  • Is this paradox about the meaning of meaning?

    Crazy pranksters....

    "Since the old man is obviously a mortal and therfore imperfect, he cannot say with any certainty that the first man the traveller meets will lie."

    No, not really. The old man is not a mortal as such; he is a fictional karakter in a paradoxical story that has been around at least since the time of Philetas of Cos, to baffle us about the scope of language in conveing meaning.

    But what's happening here? Think of 'the old man' as of language. Than ask yourself: how could we ever deside upon the value (true of false? yes of no? 1 or 0?)of a selfreflective statement?

    With his afirmative 'Exactely' we are tempted to take the statement of the old man to have bearing on the whole of the situation, but in reality no men has such oversite.

    I am not satisfied with my explination, but I do have the feeling that we should be able to solve this paradox.

    Is it that the value of a selfrefelctive statement can not be generaly determined without the aid of an outside assumption? The famous paradox of Epiminedes the Kretenser that states that all Kretensers are liars, seems to fall into the same catagorie.

    Voted for by Lou Montagne.
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  • paradox

    Whatever the first person says is insignificant. Next person please!

    Voted for by Beena.
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  • It's a Mind Bender...

    Since a well known philosopher died trying to figger this out, I don't think I'm going to try it. Not everything requires an answer, guys.

    Voted for by FriendFury.
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  • That doesn't explain it.

    Do you mean the old man? The traveller didnt say anything.

    But you see, if he IS lying, as you say, then it follows that the first thing said to the traveller that morning, was, in fact, a lie.

    So it then seems logical to suggest that if the first thing said to the traveller that morning was a lie, then the old man's warning was true. But how can it be true if we just agreed he lied?

    And even if the traveller himself did lie about this event ever happening, what does it matter? Even if it hasnt happened, it still makes for much puzzling. So that doesnt really explain it.

    Voted for by ennoia.
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  • Gee goodness

    That old man is senile!! leave gramps alone! He says that every morning @_@

    Voted for by Embers of Elm.
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