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What happens to Pinocchio's nose if he says to another person "My nose is about to grow"?

Does it grow?

Does it stay the same?

Something else?

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closed as off-topic by Deusovi, mmking, f'', Spencerkatty, Len Nov 3 '15 at 3:40

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    $\begingroup$ The problem is that you have not defined the terms. For us to answer, you have to precisely define a lie. Otherwise we can invent our own definition (as in the answer by Gordon K). We also need to know how long 'about to' refers to. Maybe Pinnochio intends to tell a deliberate lie after he said that. You cannot tell us that there was no gap between him speaking and his nose reacting -- maybe his nose just waits to see if he will tell a lie after making the statement. $\endgroup$ – chasly from UK Nov 2 '15 at 23:50
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I believe that Pinnochio's nose only grows when he tells a lie, not if he makes a mistake, so what happens with his nose depends upon what he believes.

  • If he thinks that his nose really is about to grow, then he is not lying, his nose will not grow but he will have made a mistake.
  • If he thinks that his nose is not about to grow, then he is lying and his nose will grow.

In either case there is no paradox.

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