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Aliens Exist!


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12 replies to this topic

#11 Linzd21

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Posted 19 November 2007 - 06:50 PM

none of that matters. stop mapping it out. it complicates it. 2 quick read throughs of the puzzle tell you...
1) your roll is to kill the liar
2)huggle dorfids are not liars
3)alien #1 said the other alien is a huggle dorfid, shoot him.
4) if you shoot the huggle dorfid you are killing a non liar which is the exact opposite of your mission....
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#12 Writersblock

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Posted 19 November 2007 - 09:24 PM

You are right. That is basically all we said, except to expose the red herrings for what they were and to show that there was a reenforcer in the truth teller telling a truth, as well as the liar telling a non-truth.
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#13 bonanova

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Posted 20 November 2007 - 09:12 AM

none of that matters. stop mapping it out. it complicates it. 2 quick read throughs of the puzzle tell you...
1) your roll is to kill the liar
2)huggle dorfids are not liars
3)alien #1 said the other alien is a huggle dorfid, shoot him.
4) if you shoot the huggle dorfid you are killing a non liar which is the exact opposite of your mission....

#1 said the other alien was both a Huggle and a liar. Impossible. That reveals #1 as the liar.
The guidance from #1 that the other alien is a huggle dorfid is not reliable.

As I noted in previous post:
If we take #1's last statements to be a logical argument [because A is true, you must therefore do B]
then we can analyze the argument if we want, and in this case find we'd find the argument is not valid.
Then we might conclude that a truth-teller cannot state an invalid argument.

Two problems with that:
[1] I don't think #1's last statements are an argument. He made 2 independent statements.
[2] Stating an invalid argument may not be the same as lying.
The speaker would have to have further said ...
It is valid to conclude that because A is true, you must therefore do B.
That statement would be a lie. But those words are not in the OP.

Liars and truth-tellers are more reliable revealed by [a] the truth values of their statements than by [b] the validity of their arguments.
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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell




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