# Name of this probability paradox?

**URL:** <https://boards.straightdope.com/t/name-of-this-probability-paradox/492573>\
**Category:** Factual Questions\
**Created:** [April 9, 2009, 10:25pm UTC](https://boards.straightdope.com/t/name-of-this-probability-paradox/492573 "2009-04-09T22:25:37Z")\
**Posts on this page:** 1\
**Showing post:** 63

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**Author:** ![Tyrrell\_McAllister](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tyrrell_mcallister/32/16772_2.png) [@Tyrrell\_McAllister](https://boards.straightdope.com/u/Tyrrell_McAllister)\
**Post date:** [April 12, 2009, 7:48pm UTC](https://boards.straightdope.com/t/name-of-this-probability-paradox/492573/63 "2009-04-12T19:48:55Z")

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> [@Indistinguishable](#):
>
> Interesting. So she wouldn’t even be able to imbue the statement “It’s currently the case that everyone outside is going around calling the day ‘Monday’ (even though I can’t access them)” with meaning, even though she _can_ imbue the statement “The coin flip came up heads (even though I can’t access any record of its results)” with meaning?

Yes. Since there was only one coin-flip, SB can indicate it uniquely, so she can meaningfully ask whether it came up heads.

But she can’t meaningfully ask whether everyone outside currently thinks it’s Monday, because she can’t indicate the day on which the thinking that she is asking about is happening.

That, at least, is my position.

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