Invisible wrote:
>>> It is impossible to decide on an element of an infinite set using a 
>>> finite number of questions.
>>
>> Hmm, that's not entirely true.
>>
>> Presumably it *is* however true for a set that isn't computable though.
> 
> Damnit, where's Darren?? I'm sure he knows...

20 questions doesn't pick out elements of a set. It picks out 
categories.  "Is it a zebra?" "Yes." End of game. Tens of thousands of 
possible zebras, along with an infinite number of possible-to-imagine 
zebras, all qualify as "the" correct answer.

-- 
   Darren New / San Diego, CA, USA (PST)
     It's not feature creep if you put it
     at the end and adjust the release date.

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